Journal of Cognitive Neuroscience
October 1, 2005
Olivia Carter, David C. Burr, John D. Pettigrew et al.
236 citations
Abstract Increasing evidence suggests a link between attention, working memory, serotonin (5-HT), and prefrontal cortex activity. In an attempt to tease out the relationship between these elements, this study tested the effects of the hallucinogenic mixed 5-HT1A/2A receptor agonist psilocybin alone and after pretreatment with the 5-HT2A antagonist ketanserin. Eight healthy human volunteers were...
Journal of Cognitive Neuroscience
June 1, 2004
K. Vogeley, M. May, A. Ritzl et al.
Abstract Taking the first-person perspective (1PP) centered upon one's own body as opposed to the third-person perspective (3PP), which enables us to take the viewpoint of someone else, is constitutive for human self-consciousness. At the underlying representational or cognitive level, these operations are processed in an egocentric reference frame, where locations are represented centered...
Journal of Cognitive Neuroscience
2003
Magdalena J Fosse, Roar Fosse, J Allan Hobson et al.
The activity that takes place in memory systems during sleep is likely to be related to the role of sleep in memory consolidation and learning, as well as to the generation of dream hallucinations. This study addressed the often-stated hypothesis that replay of whole episodic memories contributes to the multimodal hallucinations of sleep. Over a period of 14 days, 29 subjects kept a log of...
Journal of Cognitive Neuroscience
August 15, 2002
Dan Lloyd
92 citations
Functional brain imaging offers new opportunities for the study of that most pervasive of cognitive conditions, human consciousness. Since consciousness is attendant to so much of human cognitive life, its study requires secondary analysis of multiple experimental datasets. Here, four preprocessed datasets from the National fMRI Data Center are considered: Hazeltine et al., Neural activation...
Journal of Cognitive Neuroscience
August 15, 2002
Pierre Rainville, Robert K Hofbauer, M Catherine Bushnell et al.
The notion of consciousness is at the core of an ongoing debate on the existence and nature of hypnotic states. Previously, we have described changes in brain activity associated with hypnosis (Rainville, Hofbauer, Paus, Duncan, Bushnell, & Price, 1999). Here, we replicate and extend those findings using positron emission tomography (PET) in 10 normal volunteers. Immediately after each of 8 PET...
Journal of Cognitive Neuroscience
August 1, 2002
Eliot Hazeltine
August 15 2002 Focusing on the Big Picture with fMRI: Consciousness and Temporal Flux In Special Collection: CogNet Eliot Hazeltine Eliot Hazeltine NASA Ames Research Center Search for other works by this author on: This Site Google Scholar Author and Article Information Eliot Hazeltine NASA Ames Research Center Online ISSN: 1530-8898 Print ISSN: 0898-929X © 2002 Massachusetts Institute of...
Journal of Cognitive Neuroscience
January 1999
Pierre Rainville, Robert K Hofbauer, T Paus et al.
The neural mechanisms underlying hypnotic states and responses to hypnotic suggestions remain largely unknown and, to date, have been studied only with indirect methods. Here, the effects of hypnosis and suggestions to alter pain perception were investigated in hypnotizable subjects by using positron emission tomography (PET) measures of regional cerebral blood flow (rCBF) and...
Journal of Cognitive Neuroscience
1995
Daniel Dennett was educated at Harvard and Oxford, receiving his D.Phil. in 1965. After six years at University of California Irvine, he moved to Tufts, where he is Distinguished Professor of Arts and Sciences and Director of the Center for Cognitive Studies. It is the author of articles on many issues in artificial intelligence, psychology, and cognitive ethology, as well as in philosophy. His...