Despite the fact that the role of learning is recognised in empirical and theoretical work on sense of agency , the nature of this learning has, rather surprisingly, received little attention. In the present study we consider the contribution of associative mechanisms to SoA. SoA can be measured quantitatively as a temporal linkage between voluntary actions and their external effects. Using an outcome blocking procedure, it was shown that training action–outcome associations under conditions of increased surprise augmented this temporal linkage. (...) Moreover, these effects of surprise were correlated with schizotypy scores, suggesting that individual differences in higher level experiences are related to associative learning and to its impact on SoA. These results are discussed in terms of models of SoA, and our understanding of disrupted SoA in certain disorders. (shrink)

Responding to Allen and Bekoff's (this issue) critique of Heyes and Dickinson's (1990) analysis of the intentionality of animal action, we reiterate that our approach does not assume that a hypothesis can be definitively falsified by the results of a single experiment, and argue that the evolutionary analysis favoured by Allen and Bekoff insulates intentional accounts of animal behaviour from rejection in the usual‘holistic’process of scientific evaluation. Specifically, we present data showing that the maintenance of behaviour on an omission schedule (...) cannot be construed as rational because on these schedules it is reward for withdrawal that restores approach. In addition, we argue that, since behaviour can be affected by the non‐intentional properties of representations such as search images and cognitive maps, whether or not these representations have intentional properties can be assessed empirically only through research on instrumental behaviour. (shrink)

Although the mental time travel (MTT) hypothesis provides a rich, conceptual framework, the absence of clear, empirically tractable, behavioural criteria for determining the capacity for MTT restricts its usefulness in comparative research. Examples of empirical criteria for evaluating MTT in animals are given. We also question the authors' evaluation of semantic foresight and their even-handedness in assessing human and nonhuman behaviour.