Publication update: Hyojeong’s paper accepted in Journal of Cognitive Neuroscience and Remy’s paper in Cortex
The lab has been extra busy lately working on publications over projects that are finishing up in the lab. Hyojeong and Jarrod’s paper entitled “Predictability changes what we remember in familiar temporal contexts” is in press in the Journal of Cognitive Neuroscience. In this work, they demonstrated that how associative memories are updated is influenced by the reliability of abstract-level predictions in familiar contexts.
Remy and Jarrod’s “Working memory prioritization impacts neural recovery from distraction” is in press at Cortex. Their work shows working memory is susceptible to distraction, and how we focus our internal attention impacts this susceptibility.
Figure from Hyojeong’s paper: Changes across time in the links between perception, prediction, and subsequent memory in the (A) incongruent and (B) congruent condition. Hypothesized mental representations for prediction and perception across given trials (top). Logistic regression results (coefficient estimate: β) linking classifier evidence and recognition accuracy are shown separately for prediction (middle) and perception (bottom) for each position and across positions in both the incongruent and congruent conditions. Statistics are based on bootstrap analyses with 1,000 iterations. Error bars represent 95% CI.
Figure from Remy’s paper: Memory-trained decoding in VTC and IPS. After functional alignment of fMRI data from all participants into a common space, a classifier was trained and tested within each trial period. A) VTC decoding. Similar to perception-trained decoding, the information about the cued item was present before and after distraction, with more post-distraction information on switch trials than stay trials. B) Region-of-interest masks. Cortical VTC and IPS masks of a representative participant. C) IPS decoding. IPS allowed for successful decoding of cued items before but not after distraction. Error bars represent ±1 SEM across leave-one-participant-out cross-validation. Vertical light-gray distributions represent null permuted distributions created with shuffled labels. Horizontal dashed lines represent theoretical chance.