Priming of motion direction and area V5/MT: a test of perceptual memory.
Presentation of supraliminal or subliminal visual stimuli that can (or cannot) be detected or identified can improve the probability of the same stimulus being detected over a subsequent period of seconds, hours or longer. The locus and nature of this perceptual priming effect was examined, using su...
| Main Authors: | , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
2002
|
| _version_ | 1826275803729494016 |
|---|---|
| author | Campana, G Cowey, A Walsh, V |
| author_facet | Campana, G Cowey, A Walsh, V |
| author_sort | Campana, G |
| collection | OXFORD |
| description | Presentation of supraliminal or subliminal visual stimuli that can (or cannot) be detected or identified can improve the probability of the same stimulus being detected over a subsequent period of seconds, hours or longer. The locus and nature of this perceptual priming effect was examined, using suprathreshold stimuli, in subjects who received repetitive pulse transcranial magnetic stimulation over the posterior occipital cortex, the extrastriate motion area V5/MT or the right posterior parietal cortex during the intertrial interval of a visual motion direction discrimination task. Perceptual priming observed in a control condition was abolished when area V5/MT was stimulated but was not affected by magnetic stimulation over striate or parietal sites. The effect of transcranial magnetic stimulation (TMS) on priming was specific to site (V5/MT) and to task - colour priming was unaffected by TMS over V5/MT. The results parallel, in the motion domain, recent demonstrations of the importance of macaque areas V4 and TEO for priming in the colour and form domains. |
| first_indexed | 2024-03-06T23:04:21Z |
| format | Journal article |
| id | oxford-uuid:6344d8b0-056d-4924-a743-e8d51235a3b1 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T23:04:21Z |
| publishDate | 2002 |
| record_format | dspace |
| spelling | oxford-uuid:6344d8b0-056d-4924-a743-e8d51235a3b12022-03-26T18:11:50ZPriming of motion direction and area V5/MT: a test of perceptual memory.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:6344d8b0-056d-4924-a743-e8d51235a3b1EnglishSymplectic Elements at Oxford2002Campana, GCowey, AWalsh, VPresentation of supraliminal or subliminal visual stimuli that can (or cannot) be detected or identified can improve the probability of the same stimulus being detected over a subsequent period of seconds, hours or longer. The locus and nature of this perceptual priming effect was examined, using suprathreshold stimuli, in subjects who received repetitive pulse transcranial magnetic stimulation over the posterior occipital cortex, the extrastriate motion area V5/MT or the right posterior parietal cortex during the intertrial interval of a visual motion direction discrimination task. Perceptual priming observed in a control condition was abolished when area V5/MT was stimulated but was not affected by magnetic stimulation over striate or parietal sites. The effect of transcranial magnetic stimulation (TMS) on priming was specific to site (V5/MT) and to task - colour priming was unaffected by TMS over V5/MT. The results parallel, in the motion domain, recent demonstrations of the importance of macaque areas V4 and TEO for priming in the colour and form domains. |
| spellingShingle | Campana, G Cowey, A Walsh, V Priming of motion direction and area V5/MT: a test of perceptual memory. |
| title | Priming of motion direction and area V5/MT: a test of perceptual memory. |
| title_full | Priming of motion direction and area V5/MT: a test of perceptual memory. |
| title_fullStr | Priming of motion direction and area V5/MT: a test of perceptual memory. |
| title_full_unstemmed | Priming of motion direction and area V5/MT: a test of perceptual memory. |
| title_short | Priming of motion direction and area V5/MT: a test of perceptual memory. |
| title_sort | priming of motion direction and area v5 mt a test of perceptual memory |
| work_keys_str_mv | AT campanag primingofmotiondirectionandareav5mtatestofperceptualmemory AT coweya primingofmotiondirectionandareav5mtatestofperceptualmemory AT walshv primingofmotiondirectionandareav5mtatestofperceptualmemory |