[Study of cognitive evoked potentials as a function of the affective value and significance of stimuli in anhedonic healthy subjects with dysfunctional attitudes].
In depression studies, it is important to consider healthy subjects with characteristics which may be predictive of depression. Such are anhedonia and some "dysfunctional" attitudes. For this reason, subjects with or without these characteristics were submitted to an experimental paradigm allowing an analysis of their electroencephalographical (CNV and P300) reactivity according to affective value and meaning of stimuli, and according to the probability of occurrence of these stimuli. Subjects were divided into two groups according to their scores on two scales: the Physical Anhedonia Scale of Chapman et al. and the Dysfunctional Attitudes Scale of Weissman and Beck. Several results enabled to differentiate the two groups. Anhedonic and depressogenic subjects were characterized mainly by a particular type of processing for failure situations and for the stimulus which were associated with those situations.
Pierson
A
A
Laboratoire d'Electrophysiologie et de Neurophysiologie Appliquée LENA CNRS, Paris.
Loas
G
G
Lesevre
N
N
D000161:Acoustic Stimulation; D000328:Adult; D000339:Affect / Q000502:physiology*; D000342:Affective Symptoms / Q000503:physiopathology*; D001290:Attitude; D003216:Conditioning, Operant / Q000502:physiology; D004569:Electroencephalography; D004594:Electrophysiology; D005071:Evoked Potentials / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged
Etude de potentiels évoqués cognitifs en fonction de la valence affective et de la signification des stimulus chez des sujets sains anhédoniques avec attitudes dysfonctionnelles.