Decision formation in parietal cortex transcends a fixed frame of reference

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• Adam Triabhall
• Wednesday 16 October 2024, 14:00-15:00
• https://cam-ac-uk.zoom.us/j/92612577704?pwd=MUtqMjVQdXNmUTVIYjRkMG1NUW9GZz09.

If you have a question about this talk, please contact Adam Triabhall.

This week we will discuss and debate a recent paper by So and Shadlen, published in Neuron (2022).

Abstract: “Neurons in the lateral intraparietal cortex represent the formation of a decision when it is linked to a specific action, such as an eye movement to a choice target. However, these neurons should be unable to represent a decision that transpires across actions that would disrupt this linkage. We investigated this limitation by simultaneously recording many neurons from two rhesus monkeys. Although intervening actions disrupt the representation by single neurons, the ensemble achieves continuity of the decision process by passing information from currently active neurons to neurons that will become active after the action. In this way, the representation of an evolving decision can be generalized across actions and transcends the frame of reference that specifies the neural response fields. The finding extends previous observations of receptive field remapping, thought to support the stability of perception across eye movements, to the continuity of a thought process, such as a decision” (So & Shadlen, 2022).

Reference: So, N., & Shadlen, M. N. (2022). Decision formation in parietal cortex transcends a fixed frame of reference. Neuron, 110(19), 3206-3215.e5. https://doi.org/10.1016/j.neuron.2022.07.019

This talk is part of the The Craik Journal Club series.

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• The Craik Journal Club
• https://cam-ac-uk.zoom.us/j/92612577704?pwd=MUtqMjVQdXNmUTVIYjRkMG1NUW9GZz09
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