[en] The neurobiology of P300 is still a subject of controversy. P300 amplitude appears to be modulated by multiple neurotransmitter systems, especially dopaminergic, noradrenergic as well as cholinergic and GABAergic. In this study, we investigated the relationship between P300 amplitude and catecholaminergic neurotransmission as assessed by the growth hormone (GH) response to clonidine and apomorphine challenges in 20 major depressive patients. Results showed a correlation of P300 amplitude with the apomorphine test (r = 0.54; P = 0.01), but not with the clonidine test (r = 0.22; NS). This study supports a role for dopamine in the neurobiological modulation of P300 amplitude.
Research center :
Centre de Neurosciences Cognitives et Comportementales - ULiège
Disciplines :
Neurosciences & behavior
Author, co-author :
Hansenne, Michel ; Université de Liège - ULiège > Département des sciences cognitives > Psycho. de la personnalité et des différences individuelles
Pitchot, William ; Centre Hospitalier Universitaire de Liège - CHU > Psychiatrie et psychologie médicale
Gonzalez Moreno, Antonio; Centre Hospitalier Universitaire de Liège - CHU > Psychiatrie et psychologie médicale
Papart, Patrick ; Centre Hospitalier Universitaire de Liège - CHU > Psychiatrie et psychologie médicale
Timsit-Berthier, Martine ; Centre Hospitalier Universitaire de Liège - CHU > Psychiatrie et psychologie médicale
Ansseau, Marc ; Centre Hospitalier Universitaire de Liège - CHU > Psychiatrie et psychologie médicale
Language :
English
Title :
Catecholaminergic function and P300 amplitude in major depressive disorder (P300 and catecholamines).
Publication date :
1995
Journal title :
Electroencephalography and Clinical Neurophysiology
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