AI Article Synopsis
- Recent studies on mice reveal that movement-related brain activity is widespread, impacting even early sensory areas.
- Ignoring movement when analyzing brain activity can lead to incorrect conclusions about sensory or cognitive functions.
- The article reviews ways to differentiate between movement and task-related activity, shares case studies highlighting these issues, and discusses challenges in completely isolating sensory, motor, and cognitive signals.
Article Abstract
A surprising finding of recent studies in mouse is the dominance of widespread movement-related activity throughout the brain, including in early sensory areas. In awake subjects, failing to account for movement risks misattributing movement-related activity to other (e.g., sensory or cognitive) processes. In this article, we (1) review task designs for separating task-related and movement-related activity, (2) review three "case studies" in which considering movement would have resulted in critically different interpretations of neuronal function, and (3) discuss functional couplings that may prevent us from ever fully isolating sensory, motor, and cognitive-related activity. Our main thesis is that neural signals related to movement are ubiquitous, and therefore ought to be considered first and foremost when attempting to correlate neuronal activity with task-related processes.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8883841 | PMC |
| http://dx.doi.org/10.1523/JNEUROSCI.1919-21.2021 | DOI Listing |
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