ArticleProceedings of the National Academy of Sciences of the United States of America2024
Dynamic fading memory and expectancy effects in the monkey primary visual cortex.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Windows to the goal: Pupillary working memory signatures prospectively adapt to task demands.iScience · 2026Article
- Sensory reformatting for a working visual memory.Trends in cognitive sciences · 2025Review
- A gradual transition toward categorical representations along the visual hierarchy during working memory, but not perception.bioRxiv : the preprint server for biology · 2024Article
- Manipulating attentional priority creates a trade-off between memory and sensory representations in human visual cortex.bioRxiv : the preprint server for biology · 2024Article
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Authors and funding
5 authors.
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Abstract
In order to investigate the involvement of the primary visual cortex (V1) in working memory (WM), parallel, multisite recordings of multi-unit activity were obtained from monkey V1 while the animals performed a delayed match-to-sample (DMS) task. During the delay period, V1 population firing rate vectors maintained a lingering trace of the sample stimulus that could be reactivated by intervening impulse stimuli that enhanced neuronal firing. This fading trace of the sample did not require active engagement of the monkeys in the DMS task and likely reflects the intrinsic dynamics of recurrent cortical networks in lower visual areas. This renders an active, attention-dependent involvement of V1 in the maintenance of WM contents unlikely. By contrast, population responses to the test stimulus depended on the probabilistic contingencies between sample and test stimuli. Responses to tests that matched expectations were reduced which agrees with concepts of predictive coding.
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