Inhibitory processing in visuospatial attention in healthy adults and schizophrenic patients
| Autor: | Muriel Boucart, Roberto Alvarez, Luis J. Fuentes, Marie Agathe Zimmerman, Ana B. Vivas |
|---|---|
| Přispěvatelé: | Wartel, Anny, Laboratoire de Neurosciences Fonctionnelles et Pathologies (LNFP), Université de Lille, Droit et Santé-Centre National de la Recherche Scientifique (CNRS), Department of Biochemical/Molecular Biology, University of Oklahoma (OU) |
| Jazyk: | angličtina |
| Rok vydání: | 1999 |
| Předmět: |
Adult
Male medicine.medical_specialty Psychosis Visual perception MESH: Space Perception Audiology behavioral disciplines and activities 050105 experimental psychology Inhibition of return Perceptual Disorders 03 medical and health sciences 0302 clinical medicine medicine Humans 0501 psychology and cognitive sciences Attention [SDV.NEU] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC] Biological Psychiatry MESH: Perceptual Disorders MESH: Attention MESH: Humans MESH: Middle Aged MESH: Visual Perception 05 social sciences Cognitive disorder Stimulus onset asynchrony MESH: Adult Middle Aged medicine.disease MESH: Male Psychiatry and Mental health Schizophrenia Space Perception Facilitation Visual Perception Female [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC] Cues Psychology MESH: Female 030217 neurology & neurosurgery MESH: Cues Cognitive psychology |
| Zdroj: | Schizophrenia Research Schizophrenia Research, Elsevier, 1999, 40 (1), pp.75-80 |
| ISSN: | 0920-9964 |
| Popis: | International audience; This study assessed visuospatial attention in healthy adults and medicated schizophrenic patients. Participants performed a visual orientation task in which a peripheral cue was followed. at different intervals, by a target presented either at valid or invalid locations. When the long stimulus onset asynchrony (SOA) was used, participants were presented with either a single peripheral cue (single-cue condition) or two cues, the peripheral cue followed by a central cue (the double-cue condition). Healthy adults showed marginal facilitation effects with the short SOA and similar inhibition of return effects with the long SOA in both single-cue and double-cue conditions. Schizophrenic individuals showed a big facilitation effect with the short SOA and normal inhibition of return with the long SOA in both cue conditions. Results with the short SOA replicated previous findings (Huey, E.D., Wexler, B.E., 1994. Schizophrenia Research 14, 57-63) but, in contrast, we did not observe blunted inhibition of return with the long SOA. An inspection of the differences in the procedures used in both studies may help both to account for the discrepancies and to reveal what processes involved in visuospatial attention are affected in schizophrenia. |
| Databáze: | OpenAIRE |
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