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SUMMARY:Efficient Coding in Motor Planning - Ece Bilgic
DTSTART:20241128T140000Z
DTEND:20241128T150000Z
UID:TALK225196@talks.cam.ac.uk
CONTACT:Adam Triabhall
DESCRIPTION:This week we will discuss and debate a very recent preprint pa
 per by Wang and colleagues (2024).\n\nAbstract: “A paramount challenge f
 or the brain is to precisely model the world and control behavior within t
 he confines of limited encoding capacities. Efficient coding theory posits
  a unified framework for understanding how neural systems enhance encoding
  accuracy by tuning to environmental statistics. While this theory has bee
 n thoroughly explored within the perceptual realm\, it is less clear how e
 fficient coding applies to the motor system. Here\, we probe the core prin
 ciples of efficient coding theory through center-out reaching tasks. Our r
 esults reveal novel sequential effects in motor planning. Specifically\, c
 urrent movements are biased in a direction opposite to recent movements\, 
 and movement variance increases with the angular divergence between succes
 sive actions. These effects are modulated by the variability within the mo
 tor system: a larger repulsive bias is observed when movements are perform
 ed with the nondominant hand compared to the dominant hand\, and in indivi
 duals exhibiting higher motor variance compared to those with lower varian
 ce. These behavioral findings align with the predictions of an efficient c
 oding model\, suggesting that the motor system rapidly adapts to the conte
 xt to enhance accuracy in motor planning” (Wang et al.\, 2024).\n\nRefer
 ence: Wang\, T.\, Fang\, Y.\, & Whitney\, D. (2024). Efficient Coding in M
 otor Planning. Neuroscience. https://doi.org/10.1101/2024.09.30.615975
LOCATION:https://cam-ac-uk.zoom.us/j/92612577704?pwd=MUtqMjVQdXNmUTVIYjRkM
 G1NUW9GZz09
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