Jamal A. Williams

@jayneuro.bsky.social

81 Followers 58 Following

Interested in understanding the neural mechanisms underlying music cognition via neuroimaging and computational modeling Neuroscience PhD from Princeton Neuroscience Postdoc at MIT https://scholar.google.co.uk/citations?user=RjmK2NgAAAAJ&hl=en

Figure showing that the reactivation-memory effect was present across regions in the DMN and the visual peripheral network, but not other cortical networks.
Figure showing that the reactivation-memory effect was greater in the music condition than the no-music condition when testing across the full DMN.
Three figures showing results from our analysis where we regressed out spatial ISC from the original reactivation scores and tested whether the residuals still predicted subsequent memory. Reactivation in PMC still predicted subsequent memory whereas the relationship between reactivation and memory in angular gyrus was no longer significant. The reactivation-memory relationship numerically decreased in angular gyrus but increased in PMC. The effect remained significant in PMC and angular gyrus when performing the analysis as a parcel-wise searchlight.
Illustration of the process of computing spatial inter-subject correlation, showing how one participant’s neural pattern for a scene is correlated with the average of the other participants’ neural patterns for that scene
The top figure is a diagram showing how reactivation scores were sorted based on whether their corresponding scene was remembered or forgotten. The bottom figures show results of the analysis: We found that remembered reactivation scores were higher in key DMN regions; left angular gyrus and left posterior medial cortex. We also found converging evidence when performing the same analysis as a parcel-wise searchlight.
Diagram showing how we compared neural activity from later scenes containing a repeated theme in the music condition to neural activity from earlier scenes containing the same theme in the no-music condition, while controlling for baseline similarity between scenes.
Video clip demonstrating the second instance of an example musical theme. In this scene from Eternal Sunshine of the Spotless Mind, Joel and Clementine talk on a frozen lake (Copyright 2004 Focus Features. This clip falls under fair use for the purpose of illustrating our scientific hypothesis)
Video clip demonstrating the first instance of an example musical theme. In this scene from Eternal Sunshine of the Spotless Mind, Clementine asks for a Valentine’s Day call and Joel walks away (Copyright 2004 Focus Features. This clip falls under fair use for the purpose of illustrating our scientific hypothesis)