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SUMMARY:Foveal neurons of the monkey superior colliculus signal trans-sacc
 adic prediction errors - Chris Jungerius
DTSTART:20251017T130000Z
DTEND:20251017T140000Z
UID:TALK239650@talks.cam.ac.uk
CONTACT:Adam Triabhall
DESCRIPTION:This week we will discuss and debate a very recent paper by Zh
 ang and colleagues (2025).\n\nAbstract: “Across saccades\, neurons in re
 tinotopically organized visual representations experience drastically diff
 erent images\, but visual percepts remain stable. Here we investigated whe
 ther such stability can be mediated\, in part\, via prediction-error signa
 ling by neurons processing post-saccadic visual images. We specifically re
 corded from foveal superior colliculus (SC) neurons when a visual image on
 ly overlapped with their response fields (RF’s) after foveating saccades
  but not pre-saccadically. When we rapidly changed the target features int
 ra-saccadically\, the foveal neurons’ post-saccadic visual reafferent re
 sponses were elevated\, even though the neurons did not directly sample th
 e pre-saccadic extrafoveal target features. This effect did not occur in t
 he absence of saccades\, and it also scaled with the extent of the introdu
 ced intra-saccadic image feature discrepancies. These results suggest that
  foveal SC neurons may signal a trans-saccadic prediction error when the f
 oveated image stimulating them is inconsistent with that expected from pre
 -saccadic extrafoveal representations\, a potential perceptual stability m
 echanism” (Zhang et al.\, 2025).\n\nReference: Zhang\, T.\, Bogadhi\, A.
  R.\, & Hafed\, Z. M. (2025). Foveal neurons of the monkey superior collic
 ulus signal trans-saccadic prediction errors. PLoS Biology\, 23(6)\, e3003
 246. https://doi.org/10.1371/journal.pbio.3003246\n
LOCATION:https://cam-ac-uk.zoom.us/j/92612577704?pwd=MUtqMjVQdXNmUTVIYjRkM
 G1NUW9GZz09
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