Subcortical modulation of early visual evoked responses during a recognition memory task

Autor:	Marie-Bénédicte Rougier, Bernard Claverie, François Guillem, Bernard N'Kaoua, M. J. Le Rebeller
Rok vydání:	1993
Předmět:	N100 genetic structures Cognition Visual system eye diseases Task (project management) Ophthalmology medicine.anatomical_structure Visual memory Cortex (anatomy) Modulation (music) medicine Neurology (clinical) Psychology Neuroscience Recognition memory
Zdroj:	Neuro-Ophthalmology. 13:321-329
ISSN:	1744-506X 0165-8107
DOI:	10.3109/01658109309044581
Popis:	The early components of visual evoked potentials are thought to reflect the activity of the visual sensory pathways at a subcortical level. Animal studies have provided evidence that the anatomical connections and related physiological mechanisms allow cortical modulation of the activity of the subcortical visual pathways. The present experiments investigated the modulation of early visual evoked potentials during a visual memory task in humans. The results revealed that three early components (P45, P75 and N100) were modulated by some cognitive processes related to memory. This memory-induced early modulation has been interpreted as reflecting the influence of descending afferent connections from the associative cortex to the subcortical visual relays. Such processes may assist the early selection of visual information as a function of the required task.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c404d5a0d6b1f32593e128c40255ae8d https://doi.org/10.3109/01658109309044581 Zobrazit plný text záznamu