We here review behavioral, neuroimaging and electrophysiological studies of hypnosis as a state, as well as hypnosis as a tool to modulate brain responses to painful stimulations. Studies have shown that hypnotic processes modify internal (self awareness) as well as external (environmental awareness) brain networks. Brain mechanisms underlying the modulation of pain perception under hypnotic co...

Tobacco use is a major health problem, and nicotine is the main addictive component. Nicotine binds to nicotinic acetylcholine receptors (nAChR) to produce its initial effects. The nAChRs subtypes are composed of five subunits that can form in numerous combinations with varied functional and pharmacological characteristics. Diverse psychopharmacological effects contribute to the overall process...

The myenteric plexus contains a type of neuron that innervates the mucosa, and projects to all other classes of myenteric neurons. This neuron has a specific multipolar morphotype and possesses a characteristic action potential whose firing frequency is moderated a potassium current dependent post-spike slow after-hyperpolarisation. The neuron, termed AH cell, is functionally an intrinsic intes...

The successes of PET and fMRI in non-invasively localizing sensory functions had encouraged efforts to transform the subjective concepts of cognitive psychology into objective physical measures. The assumption was that mental functions could be decomposed into non-overlapping, context-independent modules that are operated on by separable areas of a computer-like brain. The failures of cognitive...

Objects differ along many stimulus dimensions, but observers typically group them into fewer 'categories' according to their potential use or behavioral relevance. New experiments in awake, behaving monkeys open a window onto the process of stimulus categorization within the central nervous system.

Jesper Jeppesen *, Sándor Beniczky , Peter Johansen , Per Sidenius , Anders Fuglsang-Frederiksen a Department of Neurophysiology, Aarhus University Hospital, Nørrebrogade 44, 8000 Aarhus C, Denmark Department of Clinical Neurophysiology, Danish Epilepsy Centre, Visby Álle 5, 4293 Dianalund, Denmark Department of Engineering, Aarhus University, Finlandsgade 22, 8200 Aarhus N, Denmark Department ...

K. Jann, T. Koenig, T. Dierks, C. Boesch, and A. Federspiel Department of Psychiatric Neurophysiology, University Hospital of Psychiatry, University of Bern, Bern, Bern, Switzerland, Department of Psychiatric Neurophysiology, University Hospital of Psychiatry, University of Bern, Bern, Switzerland, Department of Psychiatric Neurophysiolog, University Hospital of Psychiatry, University of Bern, ...

This study aimed at ascertaining the status of students' performances and their perception of the learning of neurophysiology in a Nigerian medical school. The goal of the study was to determine ways of addressing identified negative perceptions for the purpose of improving upon the overall learning and use neurophysiology knowledge by structured curricular reform. We analyzed and compared the ...

Dissociation as a clinical psychiatric condition has been defined primarily in terms of the fragmentation and splitting of the mind, and perception of the self and the body. Its clinical manifestations include altered perceptions and behavior, including derealization, depersonalization, distortions of perception of time, space and body and conversion hysteria. Using examples of animal models, a...

undertaken! Imbalances in presentation are exemplified by the treatment of Bacteroides (just a half-page) whilst Myco leprae fills more than two pages. On p.315 the multiple pressure method of smallpox vaccination is said to be a special procedure! On p.47 the brief paragraph on 'Droplets' frightens the reviewer-it is non-informed and tells the reader nothing of significance of large droplets c...