Evidence for strictly monocular processing in visual motion opponency and Glass pattern perception.
When presented with locally paired dots moving in opposite directions, motion selective neurons in the middle temporal cortex (MT) reduce firing while neurons in V1 are unaffected. This physiological effect is known as motion opponency. The current study used psychophysics to investigate the neural...
| Publicado en: | Vision Research Vol. 186; pp. 103 - 112 |
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| Autores principales: | , |
| Formato: | research Journal Article |
| Publicado: |
Pergamon Press - An Imprint of Elsevier Science
Sep2021
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=151247289&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 151247289 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00426989 2FL jtl: Vision Research issn: 00426989 maglogo: N pubinfo: dt: Sep2021 vid: 186 pid: 2410 pub: Pergamon Press - An Imprint of Elsevier Science artinfo: ui: 151247289 151247289 NLM34082396 151247289 10.1016/j.visres.2021.04.008 NLM34082396 151247289 ppf: 103 ppct: 9 formats: tig: atl: Evidence for strictly monocular processing in visual motion opponency and Glass pattern perception. aug: au: Waz, Sebastian Liu, Zili affil: Department of Cognitive Sciences, University of California Irvine, Irvine, CA 92697, USA sug: subj: Visual Perception Temporal Lobe Psychophysics Vision Motion Human ab: When presented with locally paired dots moving in opposite directions, motion selective neurons in the middle temporal cortex (MT) reduce firing while neurons in V1 are unaffected. This physiological effect is known as motion opponency. The current study used psychophysics to investigate the neural circuit underlying motion opponency. We asked whether opposing motion signals could arrive from different eyes into the receptive field of a binocular neuron while still maintaining motion opponency. We took advantage of prior findings that orientation discrimination of the motion axis (along which paired dots oscillate) is harder when dots move counter-phase than in-phase, an effect associated with motion opponency. We found that such an effect disappeared when paired dots originated from different eyes. This suggests that motion opponency, at some point, involves strictly monocular processing. This does not mean that motion opponency is entirely monocular. Further, we found that the effect of a Glass pattern disappeared under similar viewing conditions, suggesting that Glass pattern perception also involves some strictly monocular processing. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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