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Poster Session C: Friday, August 15, 2:00 – 5:00 pm, de Brug & E‑Hall

Representational drift across the macaque ventral stream does not affect all timepoints and stimuli alike: first evidence for a sequence of three different, yet comparatively stable clusters in V4.

Daniel Anthes¹, Sushrut Thorat¹, Matthew Ainsworth²; ¹University of Osnabrück, ²University of Oxford

Presenter: Daniel Anthes

Neural representations supporting stable behavior have been shown to drift on the timescale of days to weeks. With some exceptions, most studies investigating this phenomenon analyze populations of single neurons in mice. Here, we add to the growing evidence for representational drift by showing that the phenomenon is also found in LFPs recorded from the ventral stream of a macaque monkey during a passive object viewing task. Additionally, we show that as representations evolve over the trial time course, the main axes of the representational geometry are relatively stable, suggesting that drift is not uniform over time and stimuli.

Topic Area: Object Recognition & Visual Attention

Extended Abstract: Full Text PDF