Cortex; a journal devoted to the study of the nervous system and behavior
2008
Jirí Wackermann, Peter Pütz, Carsten Allefeld
Ganzfeld, i.e., exposure to an unstructured, uniform stimulation field, elicits in most observers pseudo-hallucinatory percepts, and may even induce global functional state changes ('altered states of consciousness'). The present paper gives a comprehensive overview of the phenomenology of subjective experience in the ganzfeld and its electrophysiological correlates. Laboratory techniques for...
Cortex; a journal devoted to the study of the nervous system and behavior
August 2006
Marcel Kinsbourne
According to the dominant focus model, the differential activation of the thalamocortical network is a sufficient condition for the diversity of states of consciousness to occur, and coherent patterns of interactive forebrain activation peaks are sufficient to generate specific conscious figures against ground. These minimal assumptions are consonant with the known properties of unilateral...
Cortex; a journal devoted to the study of the nervous system and behavior
February 1, 2006
Jeffrey A Gray, David M Parslow, Michael J Brammer et al.
Coloured hearing synaesthetes experience colours to heard words, as confirmed by reliability of self-report, psychophysical testing and functional neuroimaging data. Some also describe the 'alien colour effect' (ACE): in response to colour names, they experience colours different from those named. We have previously reported that the ACE slows colour naming in a Stroop task, reflecting...
Cortex; a journal devoted to the study of the nervous system and behavior
October 1, 2005
Alexei V Samsonovich, Giorgio A Ascoli
Here we address the notion of the self as the subject of experience, in contrast with its other popular meanings of a state of self-awareness, a body image, or a narrative center. In this perspective, the main player is not consciousness per se (the famous "hard problem"), but its subject. We start by showing that the self as the subject of immediate self-awareness cannot be conceived as an...
Cortex; a journal devoted to the study of the nervous system and behavior
December 1, 1981
N H Kerr, D Foulkes
Our paper addresses, as did a recent study by Greenwood et al. (1977), the question of differential right vs. left hemispheric involvement in REM-sleep dreaming. A male subject with extensive lesioning of the right hemisphere and consequent contralateral homonymous hemianopia was studied for 2 nights in a sleep laboratory where a dream report was collected following each of 6 awakenings from...
Cortex; a journal devoted to the study of the nervous system and behavior
September 1, 1977
P Greenwood, D H Wilson, M S Gazzaniga
This paper addresses the question of right hemisphere involvement in the visual components of dreaming. The rationale derives from an observed relation between reports of visual agnosia accompanied by dream cessation and the literature on right hemisphere specialization for visuo-spatial processes. All night sleep EEGs were recorded from subjects with partial or complete section of the corpus...