Cognitive Sciences

The perception of meaningful patterns in random arrangements and unrelated events takes place in our everyday lives, coined apophenia, synchronicity, or the experience of meaningful coincidences. However, we do not know yet what predicts this phenomenon. To investigate this, we re-analyzed a combined data set of two daily diary studies with a total of N = 169 participants (mean age 29.95 years; 54 men). We investigated if positive or negative affect (PA, NA) predicts the number of meaningful coincidences on the (...) following day (or vice versa). By means of a cross-lagged multilevel modelling approach (Bayesian estimation) we evaluated with which of two theoretical assumptions the data are more in line. First, if meaningful coincidences are facilitated by a broader and more flexible thinking style, PA should positively predict meaningful coincidences at the following day. However, if the experience of meaningful coincidences signifies a strategy to cope with negative feeling states, NA should predict the experience of meaningful coincidences during the following day. In favour of a more flexible thinking style, we found that PA predicted the number of perceived coincidences the following day. We did not find any effect for NA, and therefore, no evidence arguing for the coping mechanism hypothesis of meaningful coincidences. (shrink)

Patient suffering of major depressive disorder (MDD) often complain that subjective time seems to “drag” with respect to physical time. This may point toward a generalized dysfunction of temporal processing in MDD. In the present study, we investigated temporal preparation in MDD. “Temporal preparation” refers to an increased readiness to act before an expected event; consequently, reaction time should be reduced. MDD patients and age-matched controls were required to make a saccadic eye movement between a central and an eccentric visual (...) target after a variable duration preparatory period. We found that MDD patients produced a larger number of premature saccades, saccades initiated prior to the appearance of the expected stimulus. These saccades were not temporally controlled; instead, they seemed to reflect reduced inhibitory control causing oculomotor impulsivity. In contrast, the latency of visually guided saccades was strongly influenced by temporal preparation in controls; significantly less so, in MDD patients. This observed reduced temporal preparation in MDD was associated with a faster decay of short-term temporal memory. Moreover, in patients producing a lot of premature responses, temporal preparation to early imperative stimuli was increased. In conclusion, reduced temporal preparation and short-term temporal memory in the oculomotor domain supports the hypothesis that temporal processing was altered in MDD patients. Moreover, oculomotor impulsivity interacted with temporal preparation. These observed deficits could reflect other underlying aspects of abnormal time experience in MDD. (shrink)

Cerebrospinal fluid (CSF) is a fluidic part of the brain’s microenvironment that isolates the brain from the rest of the body. CSF dilutes metabolites from neuronal activities and removes them from the brain. Its production and resorption are regulated dynamically and are central to maintaining brain homeostasis. We discovered that the major CSF source, the choroid plexus (CP), harbors the brain’s strongest circadian clock. Here, we consider some implications of the CP circadian clock for metabolite clearance in the brain. If (...) the circadian clock contributes to timed production of the CSF, its synchronization with sleep timing can maximize clearance efficiency and help prevent neurodegenerative diseases such as Alzheimer’s disease. (shrink)

Khi các sản phẩm văn hóa chú trọng vào kết nối con người với thiên nhiên, nâng cao nhận thức về giá trị của thiên nhiên và trách nhiệm của con người với thiên nhiên, thì chúng ta mới có thể tiếp tục bảo tồn và nâng cao khả năng sáng tạo văn hóa của xã hội.

Objective Manic and depressive phases of bipolar disorder (BD) show opposite psychomotor symptoms. Neuronally, these may depend on altered relationships between sensorimotor network (SMN) and subcortical structures. The study aimed to investigate the functional relationships of SMN with substantia nigra (SN) and raphe nuclei (RN) via subcortical-cortical loops, and their alteration in bipolar mania and depression, as characterized by psychomotor excitation and inhibition. -/- Method In this resting-state functional magnetic resonance imaging (fMRI) study on healthy (n = 67) and BD (...) patients (n = 100), (1) functional connectivity (FC) between thalamus and SMN was calculated and correlated with FC from SN or RN to basal ganglia (BG)/thalamus in healthy; (2) using an a-priori-driven approach, thalamus-SMN FC, SN-BG/thalamus FC, and RN-BG/thalamus FC were compared between healthy and BD, focusing on manic (n = 34) and inhibited depressed (n = 21) patients. -/- Results (1) In healthy, the thalamus-SMN FC showed a quadratic correlation with SN-BG/thalamus FC and a linear negative correlation with RN-BG/thalamus FC. Accordingly, the SN-related FC appears to enable the thalamus-SMN coupling, while the RN-related FC affects it favoring anti-correlation. (2) In BD, mania showed an increase in thalamus-SMN FC toward positive values (ie, thalamus-SMN abnormal coupling) paralleled by reduction of RN-BG/thalamus FC. By contrast, inhibited depression showed a decrease in thalamus-SMN FC toward around-zero values (ie, thalamus-SMN disconnection) paralleled by reduction of SN-BG/thalamus FC (and RN-BG/thalamus FC). The results were replicated in independent HC and BD datasets. -/- Conclusions These findings suggest an abnormal relationship of SMN with neurotransmitters-related areas via subcortical-cortical loops in mania and inhibited depression, finally resulting in psychomotor alterations. (shrink)

Các nhà khoa học trong lĩnh vực nhân học, địa lý và các lĩnh vực khác trong khoa học xã hội và nhân văn từ lâu đã cho rằng môi trường sống của con người ảnh hưởng sâu sắc đến hệ thống giá trị và thực tiễn văn hóa của họ. Shota Shibasaki, Ryosuke Nakadai và Yo Nakawake đã phát triển dựa trên ý tưởng này, chứng minh rằng các đặc điểm sinh thái địa phương định hình sự xuất hiện (...) của các loài động vật ranh mãnh trong truyền thuyết dân gian. Dựa trên phát hiện của họ và khung quản trị tri thức SM3D (Serendipity-Mindsponge-3D), chúng tôi thảo luận về việc khả năng sáng tạo các sản phẩm văn hóa của cá nhân hoặc nhóm phụ thuộc vào tính sẵn có và khả năng tiếp cận thông tin từ môi trường xung quanh. Do mất đa dạng sinh học và biến đổi khí hậu, những nguồn tài nguyên quý giá cho sáng tạo văn hóa đã bị suy giảm. Do đó, việc bảo tồn đa dạng sinh học và hành động vì khí hậu cần được xem như những giá trị nền tảng của một nền văn hóa tiến bộ và nhân văn. Chỉ khi đó, chúng ta mới có thể tiếp tục duy trì và nâng cao năng lực sáng tạo văn hóa của xã hội. (shrink)

Scientists in anthropology, geography, and other fields within social sciences and humanities have long suggested that the environments in which people live deeply influence their cultural value systems and practices. Shota Shibasaki, Ryosuke Nakadai, and Yo Nakawake have built on this idea, demonstrating that local ecological characteristics shape the appearance of trickster animals in folklore. Based on their finding and the SM3D (Serendipity-Mindsponge-3D) knowledge management framework, we discuss how the individuals’ or groups’ ability to create cultural products depends on the (...) availability and accessibility of information from the surrounding environment. Due to biodiversity loss and climate change, such valuable resources for cultural creativity have been diminished. Thus, it is crucial to adopt biodiversity preservation and climate action as fundamental values of a progressive and humane culture. Only then can we continue to preserve and enhance the creative cultural capacity of society. (shrink)

This contribution provides a brief commentary to Bakker’s and Lelkes’s plea to emotion researchers to engage more thoroughly with research on affective polarisation. I begin by summarising some of the main arguments and suggestions developed by Bakker and Lelkes and then make a number of suggestions that focus on how accounting for discrete emotions can make a particularly valuable contribution to affective polarisation research. The first suggestion pertains to the intentionality of emotions, and specifically of political emotions in intergroup contexts. (...) The second suggestion emphasises that emotions convey meaning about social relations that is considerably richer than the information contained in affect alone. The third proposition highlights that relations characterised by discrete emotions also reveal information about the cultural value and appropriateness of these relations. Finally, I discuss how discrete emotions specifically contribute to processes of community building and social exclusion. (shrink)

When recalling autobiographical events, people not only retrieve event details but also the feelings they experienced. The current study examined whether people are able to consistently recall the intensity of past feelings associated with two consequential and negatively valenced events, i.e. the 9/11 attack (N = 769) and the COVID-19 pandemic (N = 726). By comparing experienced and recalled intensities of negative feelings, we discovered that people systematically recall a higher intensity of negative feelings than initially reported – overestimating the (...) intensity of past negative emotional experiences. The COVID-19 dataset also revealed that individuals who experienced greater improvement in emotional well-being displayed smaller biases in recalling their feelings. Across both datasets, the intensity of remembered feelings was correlated with initial feelings and current feelings, but the impact of the current feelings was stronger in the COVID-19 dataset than in the 9/11 dataset. Our results demonstrate that when recalling negative autobiographical events, people tend to overestimate the intensity of prior negative emotional experiences with their degree of bias influenced by current feelings and well-being. (shrink)

Among children and adolescents, emotion understanding relates to academic achievement and higher well-being. This study investigates the role of general and emotion-specific language skills in children’s and adolescents’ emotion understanding, building on previous research highlighting the significance of domain-specific language skills in conceptual development. We employ a novel inventory (CEVVT) to assess emotion-specific vocabulary. The study involved 10–11-year-old children (N = 29) and 16–17-year-old adolescents (N = 28), examining their emotion recognition and knowledge of emotion regulation strategies. Results highlight the (...) ongoing development of emotion-specific vocabulary across these age groups. Emotion recognition correlated with general vocabulary in the younger group. In the older age group, emotion recognition was related to emotion-specific vocabulary size, but this effect only became apparent when controlling for the depth of emotion-specific vocabulary. Against expectation, there were no significant contributions of general or emotion-specific vocabulary to knowledge of emotion regulation strategies in either age group. These findings enhance our comprehension of the nuanced interplay between language and emotion across developmental stages. (shrink)

Many pragmatist and non-representational approaches to cognition, such as the enactivist, have focused on the relations between actions, affectivity, and habits from an intersubjective perspective. For those adopting such approaches, all these aspects are inextricably connected; however, many questions remain open regarding the dynamics by which they unfold and shape each other over time. This paper addresses a specific topic that has not received much attention: the impact on future behavior of not fulfilling possibilities for social interaction even though their (...) fulfillment is desirable within a given context. Inspired by Gibson’s theory of affordances and Dewey’s account of habits, these situations will be characterized as events where an agent does not act upon an inviting affordance for social interaction due to a conflict which he or she experiences between given concerns, needs, and social norms. This conflict leads to a sense of unfulfillment that may eventually bring about a crisis and revision of habits. Through specific examples, this work presents the potential impact of the connection between affordances, habits, and affectivity on everyday situations. It therefore represents an exploration of the common ground between pragmatism and enactivism and an attempt to contribute to a process-based approach to social interaction. (shrink)

Five years ago, on May 24, 2019, the computer program ‘bayesvl’ was officially published on R under the name “bayesvl: Visually Learning the Graphical Structure of Bayesian Networks and Performing MCMC with ‘Stan’”. This program (or package) was developed by two founders of the SM3D Portal, Vuong Quan Hoang and La Viet Phuong, to improve the productivity of conducting social research. The package was designed with a pedagogical orientation, supporting users in familiarizing themselves with Bayesian statistical methods, MCMC simulation, and (...) visualization of technical diagnoses and results. (shrink)

Serendipity is defined as an ability to notice, evaluate, and take advantage of unexpected information for survival purposes (both natural and social). The concept has been discussed for centuries. Still, it has only caught the attention of academia quite recently due to its strategic advantage in all aspects of life, such as daily life activities, science and technology, business and entrepreneurship, politics and economics, education administration, career choice and development, etc.

Research on visual attention has uncovered significant anomalies, and some traditional methods may have inadvertently probed peripheral vision rather than attention. Vision science needs to rethink visual attention from the ground up. To facilitate this, for a year I banned the word “attention” in my lab. This constraint promoted a more precise discussion of attention-related phenomena, capacity limits, and mechanisms. The insights gained lead me to challenge attributing to “attention” those phenomena that can be better explained by perceptual processes, are (...) predictable by an ideal observer model, or that otherwise may not require an additional mechanism. I enumerate a set of critical phenomena in need of explanation. Finally, I propose a unifying theory in which all perception results from performing a task, and tasks face a limit on complexity. (shrink)

More than 50 years ago, Bongard introduced 100 visual concept learning problems as a challenge for artificial vision systems. These problems are now known as Bongard problems. Although they are well known in cognitive science and artificial intelligence, only very little progress has been made toward building systems that can solve a substantial subset of them. In the system presented here, visual features are extracted through image processing and then translated into a symbolic visual vocabulary. We introduce a formal language (...) that allows representing compositional visual concepts based on this vocabulary. Using this language and Bayesian inference, concepts can be induced from the examples that are provided in each problem. We find a reasonable agreement between the concepts with high posterior probability and the solutions formulated by Bongard himself for a subset of 35 problems. While this approach is far from solving Bongard problems like humans, it does considerably better than previous approaches. We discuss the issues we encountered while developing this system and their continuing relevance for understanding visual cognition. For instance, contrary to other concept learning problems, the examples are not random in Bongard problems; instead they are carefully chosen to ensure that the concept can be induced, and we found it helpful to take the resulting pragmatic constraints into account. (shrink)

Our interpretive resources enable us to make sense of, navigate, and communicate about our shared world. These resources not only carve the world up into categories, but also guide how we, individually and collectively, are oriented towards it. In this thesis, I examine how these resources, and the dispositions they guide, may be harmful. A vital kind of interpretive resources are frames, which equip us with unified perspectives on the world. Perspectives are suites of open-ended interpretive (inquisitive, attentional, inferential, evaluative, (...) and affective) dispositions. Frames thereby guide how we interpret, respond to, and navigate the world. I show that these perspectives are epistemically powerful and indispensable. I argue that flawed perspectives, and the distorting frames that produce them, are deeply pernicious and I examine their relationship to oppression. (shrink)

In a recent study published in Scientific Reports, the researchers documented the first wild animal seen using a plant with known medicinal properties to heal a wound.

This article interrogates how both visual culture and queer futurity can be made visible in and through the Philippine archive as a case in point. It begins by problematizing a paradoxical specter of futurity that seems to haunt more the Global North. But despite such haunting, the Philippines in the Global South continues to have thin to nil (i.e., nearly absent) envisioning toward a queer futurity, for most Filipino LGBTQIA + scholars seem to still be engaged in recovering “lost histories” (...) from the archives and “thick descriptions” of the present, while focusing more on the textual than the visual. The article then proceeds to discuss mobilizing ekphrasis and representation as main conceptual tools in bridging the temporally opposite projects of queer archiving and queer futurity. It analyzes through ekphrastic re-reading the various LGBTQIA + representations from the Philippine archive – that is, a “palimpsestic site” of colonial confrontations, national (re)construction, and potentially global queer critique. These re-readings along the archival grain juxtapose the archival representations as historically authentic vis-à-vis their more present-day representations as visual proxies. Yet more crucially, the potency of these ekphrastic re-readings – in lieu of visually actual – lies in their capacity to reverberate queer possibilities, re-awakening them from their sleep within the archives, and thus re-mobilizing them toward becoming a useful part of academics, activists, and artists’ “shared arsenal” in re-envisioning and, hopefully in time, reifying such past possibilities into future queer actualities anew. (shrink)

Art is a form of religion. It uses symbols and stories to create a sublime, emotional experience. This demonstrates that religion, or at least spirituality, is experienced by the secular, including atheists. And, of course, art is used by all religions.

Entrenchment and schematisation are the two most important cognitive processes in language acquisition. In this article, the role of the two processes, operationalised by token and type frequency, in the production of overgeneralised verb forms in Croatian preschool children is investigated using a parental questionnaire and computational simulation of language acquisition. The participants of the questionnaire were parents of children aged 3;0–5;11 years (n = 174). The results showed that parents of most children (93 %) reported the parallel use of (...) both adult-like and overgeneralised verb forms, suggesting that Croatian-speaking preschool children have not yet fully acquired the verbal system. The likelihood of overgeneralised forms being reported decreases with the age of the children and verb type frequency. The results of the computational simulation show that patterns with a higher type frequency also show a greater preference for the correct form, while lexical items show both learning and unlearning tendencies during the process. (shrink)

From religion to philosophy to science, all human systems of definition are formed by human brains. The nature and limits of the human brain are the nature and limits of those systems. This essay shows how the human brain works normally then unusually, and what this reveals about the limits of human knowledge. There are many conditions and instances where the brain processes information unusually, including mental disorders, physical events, and drug use. This essay focuses on the neurological events called (...) mystical experiences. (shrink)

On April 19, 2024, the New York Declaration on Animal Consciousness was announced at the “Emerging Science of Animal Consciousness” conference held at New York University. The New York Declaration is an effort to showcase a scientific consensus on the presence of conscious experiences across all vertebrates (including reptiles, amphibians, and fish) and many invertebrates (at least including cephalopods, decapod crustaceans, and insects). Scientifically, the New York Declaration marks a significant advancement for humanity. However, it also brings heightened awareness to (...) the moral challenges associated with animals that have conscious experiences (or phenomenal consciousness). This article will discuss philosophical approaches to the moral issue of killing sentient beings, thereby highlighting an existing moral dilemma in human society: In sustaining human survival, a species considered to have morality, we have to violate our own moral standards by killing other species with intrinsic value, consciousness, or sentience. This moral dilemma has long been present in human society. Various solutions have been proposed and implemented in practice to address this issue, such as the non-violence and vegetarian approach of Buddhism, the application of Islamic law and sacred rituals to animals in Islam, animal rights movements and voluntary extinction in Western countries, and the technology producing meat using animal cells. However, despite these approaches, we have not yet been able to fully resolve the dilemma, as sentient beings continue to be killed for our survival. We believe the most feasible solution is to change the current food consumption culture, build an eco-surplus culture to mitigate climate change, prevent deforestation, and promote peace. (shrink)

A central aim of Construction Grammar is to model links within the construct-i-con. This paper investigates three constructions that share one property: an atypical element in the object slot. The constructions are therefore not prototypically transitive. Structural priming (implemented with an automatic maze variant of self-paced reading) is used to test hypotheses on the relation among the Reaction Objoid (She smiled her thanks), the Cognate Objoid (She smiled a sweet smile or He told a sly tale), and the Superlative Objoid (...) (She smiled her sweetest) Construction, and between two variants of the latter (They worked (at) their hardest). Results support transitivity as gradient: intransitive COCs prime the ROC and the SOC, whereas COCs with transitives only prime the ROC. For variants of the SOC, we find evidence of asymmetric priming with the bare SOC priming the at-SOC. Within-construction priming effects in the SOC are of greater magnitude than those with the at-SOC and the latter are weaker than those of the COC and of a rather different nature than those from the ROC. This suggests that speakers, rather than creating a constructeme between the bare and the at-SOC, store distinct but closely related constructions on a cline of transitivity. (shrink)

The neurotransmitters GABA and glutamate have been suggested to play a role in Major Depressive Disorder (MDD) through an imbalance between cortical inhibition and excitation. This effect has been highlighted in higher brain areas, such as the prefrontal cortex, but has also been posited in basic sensory cortices. Based on this, magnetic resonance spectroscopy (MRS) was used to investigate potential changes to GABA+ and glutamate+glutamine (Glx) concentrations within the occipital cortex in MDD patients (n = 25) and healthy controls (n (...) = 25). No difference in occipital GABA+ or Glx concentrations, nor in the GABA+/Glx ratio, was found between groups. An analysis of an extended MDD patient and unmatched control dataset (n = 90) found no correlation between metabolite concentrations and depressive symptoms. These results were integrated with prior studies through metabolite-specific meta-analyses, revealing no difference in occipital GABA and Glx concentrations between patients and controls. An effect of publication year on GABA group differences was found, suggesting that previously reported results may have been artifacts of measurement accuracy. Taken together, our results suggest that, contrary to some prior reports, MRS measurements of occipital GABA and Glx do not differ between MDD patients and controls. (shrink)

Neurovascular coupling (NVC), the transient regional hyperemia following the evoked neuronal responses, is the basis of blood oxygenation level-dependent techniques and is generally adopted across physiological conditions, including the intrinsic resting state. However, the possibility of neurovascular dissociations across physiological alterations is indicated in the literature. To examine the NVC stability across sleep–wake states, we used electroencephalography (EEG) as the index of neural activity and functional magnetic resonance imaging (fMRI) as the measure of cerebrovascular response. Eight healthy adults were recruited (...) for simultaneous EEG-fMRI recordings in nocturnal sleep. We compared the cross-modality (EEG vs. fMRI) consistency of functional indices (spectral amplitude and functional connectivity) among five states of wakefulness and sleep (state effect). We also segregated the brain into three main partitions (anterior, middle and posterior) for spatial assessments (regional effect). Significant state effects were found on δ, α and fMRI indices and regional effects on the α and fMRI indices. However, the cross-state EEG changes in spectral amplitude and functional connectivity did not consistently match the changes in the fMRI indices across sleep–wake states. In spectral amplitude, the δ band peaked at the N3 stage for all brain regions, while the fMRI fluctuation amplitude peaked at the N2 stage in the central and posterior regions. In regional connectivity, the inter-hemispheric connectivity of the δ band peaked at the N3 stage for all regions, but the bilateral fMRI connectivity showed the state changes in the anterior and central regions. The cross-modality inconsistencies across sleep–wake states provided preliminary evidence that the neurovascular relationship may not change in a linear consistency during NREM sleep. Thus, caution shall be exercised when applying the NVC presumption to investigating sleep/wake transitions, even among healthy young adults. (shrink)

Bakla signals “effeminacy” and “homosexuality,” which stigma signifies being “weak,” “fake woman,” and “unreal man.” This historical research interrogates the etymology of bakla, which etymology claims that bakla only became a label for gay identity since the 1960s. A newfound evidence, the Bienvenido N. Santos’ “Recollections” (1932), challenges this etymology; as the document used bakla to signify “effeminate” decades before the 1960s. -/- Mobilizing this newfound evidence alongside theoretical, historiographic, and archival data, this thesis asks: (1) How can the 1932 (...) “Recollections” help explain the crystallization of bakla into a label for “effeminate homosexual male” identity since the 1960s? (2) What can socio-historical processes further reveal about the etymology of bakla, and why the word bears so much stigma? (3) How did “effeminacy” and male “homosexuality” become semantically linked with bakla’s historic senses? At its core, the study argues that sexism and political instability coincide in the social history of the bakla. -/- Contextualizing bakla’s semantic shifts reveals that the word’s stigma comes from its earliest meaning; besides “fearful and weak,” it was bakla as “deceptive.” While tracking bakla’s semantic links with the pre-existing terms for gay identity shows that bakla was forged alongside historical biases against women. These biases rendered gay men and trans women undesirable. And archival data uncover five (5) factors explaining why bakla crystallized into a gender label, which also offer insights on how bakla has been reclaimed and reworked, despite its persisting stigma, in more recent years. -/- The thesis exposes bakla’s status as a “keyword” in the Philippine conceptual, sexual, and social history. It undresses bakla, opens it to critique, and recognizes the importance its etymology can play in undoing bakla’s stigma, and its potential in rethinking Philippine history itself. (shrink)

Sound symbolism refers to non-arbitrary associations between word forms and meaning, such as those observed for some properties of sounds and size or shape. Recent evidence suggests that these connections extend to emotional concepts. Here we investigated two types of non-arbitrary relationships. Study 1 examined whether iconicity scores (i.e. resemblance-based mapping between aspects of a word’s form and its meaning) for words can be predicted from ratings in the affective dimensions of valence and arousal and/or the discrete emotions of happiness, (...) anger, fear, disgust and sadness. Words denoting negative concepts were more likely to have more iconic word forms. Study 2 explored whether statistical regularities in single phonemes (i.e. systematicity) predicted ratings in affective dimensions and/or discrete emotions. Voiceless (/p/, /t/) and voiced plosives (/b/, /d/, /g/) were related to high arousing words, whereas high arousing negative words tended to include fricatives (/s/, /z/). Hissing consonants were also more likely to occur in words denoting all negative discrete emotions. Additionally, words conveying certain discrete emotions included specific phonemes. Overall, our data suggest that emotional features might explain variations in iconicity and provide new insight about phonemic patterns showing sound symbolic associations with the affective properties of words. (shrink)

Understanding cognitive effort expended during assessments is essential to improving efficiency, accuracy, and accessibility within these assessments. Pupil dilation is commonly used as a psychophysiological measure of cognitive effort, yet research on its relationship with effort expended specifically during language processing is limited. The present study adds to and expands on this literature by investigating the relationships among pupil dilation, trial difficulty, and accuracy during a vocabulary test. Participants (n = 63, Mage = 19.25) completed a subset of trials from (...) the Peabody Picture Vocabulary Test while seated at an eye‐tracker monitor. During each trial, four colored images were presented on the monitor while a word was presented via audio recording. Participants verbally indicated which image they thought represented the target word. Words were categorized into Easy, Medium, and Hard difficulty. Pupil dilation during the Medium and Hard trials was significantly greater than during the Easy trials, though the Medium and Hard trials did not significantly differ from each other. Pupil dilation in comparison to trial accuracy presented a more complex pattern, with comparisons between accurate and inaccurate trials differing depending on the timing of the stimulus presentation. These results present further evidence that pupil dilation increases with cognitive effort associated with vocabulary tests, providing insights that could help refine vocabulary assessments and other related tests of language processing. (shrink)

Empirical evidence indicates that conscious states, distinguished by the presence of phenomenal qualities, are closely linked to synchronized neural activity patterns whose dynamical characteristics can be attributed to self-organized criticality and phase transitions. These findings imply that insight into the mechanism by which the brain controls phase transitions will provide a deeper understanding of the fundamental mechanism by which the brain manages to transcend the threshold of consciousness. This article aims to show that the initiation of phase transitions and the (...) formation of synchronized activity patterns is due to the coupling of the brain to the zero-point field (ZPF), which plays a central role in quantum electrodynamics (QED). The ZPF stands for the presence of ubiquitous vacuum fluctuations of the electromagnetic field, represented by a spectrum of normal modes. With reference to QED-based model calculations, the details of the coupling mechanism are revealed, suggesting that critical brain dynamics is governed by the resonant interaction of the ZPF with the most abundant neurotransmitter glutamate. The pyramidal neurons in the cortical microcolumns turn out to be ideally suited to control this interaction. A direct consequence of resonant glutamate-ZPF coupling is the amplification of specific ZPF modes, which leads us to conclude that the ZPF is the key to the understanding of consciousness and that the distinctive feature of neurophysiological processes associated with conscious experience consists in modulating the ZPF. Postulating that the ZPF is an inherently sentient field and assuming that the spectrum of phenomenal qualities is represented by the normal modes of the ZPF, the significance of resonant glutamate-ZPF interaction for the formation of conscious states becomes apparent in that the amplification of specific ZPF modes is inextricably linked with the excitation of specific phenomenal qualities. This theory of consciousness, according to which phenomenal states arise through resonant amplification of zero-point modes, is given the acronym TRAZE. An experimental setup is specified that can be used to test a corollary of the theory, namely, the prediction that normally occurring conscious perceptions are absent under experimental conditions in which resonant glutamate-ZPF coupling is disrupted. (shrink)

One of the most prominent social influences on human decision making is conformity, which is even more prominent when the perceptual information is ambiguous. The Bayes optimal solution to this problem entails weighting the relative reliability of cognitive information and perceptual signals in constructing the percept from self‐sourced/endogenous and social sources, respectively. The current study investigated whether humans integrate the statistics (i.e., mean and variance) of endogenous perceptual and social information in a Bayes optimal way while estimating numerosities. Our results (...) demonstrated adjustment of initial estimations toward group means only when group estimations were more reliable (or “certain”), compared to participants’ endogenous metric uncertainty. Our results support Bayes optimal social conformity while also pointing to an implicit form of metacognition. (shrink)

While action selection strategies in well‐defined domains have received considerable attention, little is yet known about how people choose what to do next in ill‐defined tasks. In this contribution, we shed light on this issue by considering everyday tasks, which in many cases have a multitude of possible solutions (e.g., it does not matter in which order the items are brought to the table when setting a table) and are thus categorized as ill‐defined problems. Even if there are no hard (...) constraints on the ordering of subtasks in everyday activities, our research shows that people exhibit specific preferences. We propose that these preferences arise from bounded rationality, that is, people only have limited knowledge and processing power available, which results in a preference to minimize the overall physical and cognitive effort. In the context of everyday activities, this can be achieved by (a) taking properties of the spatial environment into account to use them to one's advantage, and (b) employing a stepwise‐optimal action selection strategy. We present the Opportunistic Planning Model as an explanatory cognitive model, which instantiates these assumptions, and show that the model is able to generalize to new everyday tasks, outperforming machine learning models such as neural networks during generalization. (shrink)

Evaluating other people's moral character is a crucial social cognitive task. However, the cognitive processes by which people seek out, prioritize, and integrate multiple pieces of character‐relevant information have not been studied empirically. The first aim of this research was to examine which character traits are considered most important when forming an impression of a person's overall moral character. The second aim was to understand how differing levels of trait expression affect overall character judgments. Four preregistered studies and one supplemental (...) study (total N = 720), using five different measures of importance and sampling undergraduates, online workers, and community members, found that our participants placed the most importance on the traits honest, helpful, compassionate, loyal, and responsible. Also, when integrating the information that they have learned, our participants seemed to engage in a simple averaging process in which all available, relevant information is combined in a linear fashion to form an overall evaluation of moral character. This research provides new insights into the cognitive processes by which evaluations of moral character are formed. (shrink)

Recent investigations on how people derive meaning from language have focused on task‐dependent shifts between two cognitive systems. The symbolic (amodal) system represents meaning as the statistical relationships between words. The embodied (modal) system represents meaning through neurocognitive simulation of perceptual or sensorimotor systems associated with a word's referent. A primary finding of literature in this field is that the embodied system is only dominant when a task necessitates it, but in certain paradigms, this has only been demonstrated using nouns (...) and adjectives. The purpose of this paper is to study whether similar effects hold with verbs. Experiment 1 evaluated a novel task in which participants rated a selection of verbs on their implied vertical movement. Ratings correlated well with distributional semantic models, establishing convergent validity, though some variance was unexplained by language statistics alone. Experiment 2 replicated previous noun‐based location‐cue congruency experimental paradigms with verbs and showed that the ratings obtained in Experiment 1 predicted reaction times more strongly than language statistics. Experiment 3 modified the location‐cue paradigm by adding movement to create an animated, temporally decoupled, movement‐verb judgment task designed to examine the relative influence of symbolic and embodied processing for verbs. Results were generally consistent with linguistic shortcut hypotheses of symbolic‐embodied integrated language processing; location‐cue congruence elicited processing facilitation in some conditions, and perceptual information accounted for reaction times and accuracy better than language statistics alone. These studies demonstrate novel ways in which embodied and linguistic information can be examined while using verbs as stimuli. (shrink)

Previous studies show that adults and children evaluate the act of leaving a choice for others as prosocial, and have termed such actions as socially mindful actions. The current study investigates how the desirability of the available options (i.e., whether the available options are desirable or not) may influence adults’ and children's evaluation of socially mindful actions. Children (N = 120, 4- to 6-year-olds) and adults (N = 124) were asked to evaluate characters selecting items for themselves from a set (...) of three items—two identical items and one unique item—in a way that either leaves a choice (two diverse items) or leaves no choice (two identical items) for the next person (i.e., the beneficiary). We manipulated whether the available options were either desirable or undesirable (i.e., damaged). We found that adults’ and 6-year-olds’ evaluation of socially mindful actions is moderated by the desirability of the options. Although they evaluate the act of leaving a choice for others as nicer than the act of leaving no choice both when the choosing options are desirable and when they are undesirable, the discrepancy in the evaluation becomes significantly smaller when the choosing options are undesirable. We also found that inference of the beneficiary's feeling underlies social evaluation of the actor leaving a choice (or not). These findings suggest that children consider both the diversity of options left and the desirability of the available options in understanding and evaluating socially mindful acts. (shrink)

Ngày 19/4/2024 vừa qua, Tuyên bố New York về Ý thức của Động vật đã được công bố tại một hội nghị "Khoa học Mới nổi về Ý thức của Động vật" được tổ chức tại Đại học New York.