Behavioral states affect eye position tuning in the parietal cortex of macaques

Kostas Hadjidimitrakis, Francesco Edoardo Vaccari, Marina De Vitis, Matteo Filippini, Stefano Diomedi, Patrizia Fattori · 2026

Read Behavioral states affect eye position tuning in the parietal cortex of macaques by Kostas Hadjidimitrakis, Francesco Edoardo Vaccari, Marina De Vitis, Matteo Filippini, Stefano Diomedi, Patrizia Fattori (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13578477.txt.

Description

Kostas Hadjidimitrakis and co-authors show that a monkey's state of mind shifts how its brain maps eye position. Their 2026 study records single cells in a rear brain area that builds space maps from eye position and plans arm moves. The team set two states side by side. In one, the monkey held its gaze on lit targets for a task. In the other, it gazed freely at its own pace in the dark.

Cell fire rates were much the same in both states. Yet the tuning of cells to gaze place ran stronger in the free state, and replies varied less there. The authors read this as proof that space maps in this area bend with context, well past sight-led tasks.

Catalog record

CREATORKostas Hadjidimitrakis, Francesco Edoardo Vaccari, Marina De Vitis, Matteo Filippini, Stefano Diomedi, Patrizia Fattori
YEAR2026
COLLECTIONPAPERS
FORMATTXT
FILE SIZE68 KB
VERSION1.0
LICENSECC BY 4.0
RIGHTSCC BY
SOURCEEurope PMC

Source: https://europepmc.org/articles/PMC13578477

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