1Neurology Department and Cyclotron Research Center, University of Lie`ge, Sart Tilman B30, 4000 Liege, Belgium 2Neurorehabilitation Medicine, Hoˆpital Caremeau, CHU Nıˆmes, 30029 Nıˆmes Cedex, France 3Department of Speech Therapy, Hospital Pitie´ Salpe´trie`re, Paris and French Association Locked in Syndrome (ALIS), 225 Bd Jean-Jaures, MBE 182, 92100 Boulogne-Billancourt, France 4Neurosciences et Syste`mes Sensoriels Unite´ Mixte de Recherche 5020, Universite´ Claude Bernard Lyon 1 – CNRS, 69007 Lyon, France 5Intensive Care Medicine, Hoˆpital Erasme, Universite´ Libre de Bruxelles, Route de Lennik 808, 1070 (...) Brussels, Belgium 6Anesthesiology, Reanimation and Pain Clinic, CHU University Hospital, Sart Tilman B33, 4000 Liege, Belgium 7German Association Locked in Syndrome LIS e.V., Evangelischen Krankenhaus Ko¨ningin Elisabeth Herzberge gGmbh (Lehrkrankenhaus der Charite´), Haus 30, Herzbergstrasse 79, 10365 Berlin, Germany 8Intensive Care Medicine, Centre Hospitalier Re´gional de la Citadelle, Boulevard du 12e de Ligne 1, 4000 Liege, Belgium 9Biomedical PET Unit, Hoˆpital Erasme, Universite´ Libre de Bruxelles, Route de Lennik 808, 1070 Brussels, Belgium.. (shrink)

While philosophers have, for centuries, pondered upon the relation between mind and brain, neuroscientists have only recently been able to explore the connection analytically — to peer inside the black box. This ability stems from recent advances in technology and emerging neuroimaging modalities. It is now possible not only to produce remarkably detailed images of the brain’s structure (i.e. anatomical imaging) but also to capture images of the physiology associated with mental processes (i.e. functional imaging). We are able to see (...) how specific regions of the brain ‘light up’ when activities such as reading this book are performed, and how our neurons and their elaborate cast of supporting cells organize and coordinate their tasks. As demonstrated in the other chapters of this book, the mapping of the human mind (mostly by measuring regional changes in blood flow, initially by positron emission tomography (PET) and recently by functional magnetic resonance imaging or (fMRI)) has provided insight into the functional neuroanatomy of neuropsychiatric diseases. Amazingly, the idea that regional cerebral blood flow (rCBF) is related intimately to brain function goes back more than a century. As is often the case in science, this idea was initially the result of unexpected observations. The Italian physiologist Angelo Mosso first expressed the idea while studying pulsations of the living human brain that keep pace with the heartbeat (Mosso, 1881). These brain pulsations can be observed on the surface of the fontanelles in newborn children. Mosso believed that they reflected blood flow to the brain. He observed similar pulsations in an adult with a post-traumatic skull defect over the frontal lobes. While studying this subject, a peasant named Bertino, Mosso observed a sudden increase in the magnitude of the ‘brain’s heart-beats’ when the church bells signalled 12 o’clock, the time for a required prayer. The changes in brain pulsations occurred independently of any change in pulsations in the forearm.. (shrink)

Soltis' paper contains little data on the underlying neural substrate of the discussed signal function of early infant crying – probably because there is amazingly little known about it. We here discuss the interest of functional neuroimaging as an objective measurement of brain activity in (1) early infants during crying and (2) parents hearing their offspring cry.