Objective: The study explores neural reorganization post tumor resection based on tumor location (right versus left hemisphere) by examining neural coherence with magnetoencephalography (MEG) during declarative memory tasks at the time of resection, 4- and 8-weeks post-resection. Enhanced connectivity suggestive of plasticity in left temporal cortices over time was hypothesized. Method: Four adults (2 male) recruited through a hospital with predominately temporal tumors (3) engaged in a list-learning and n-back task while undergoing MEG coherence imaging. Data underwent standard processing and synchronization of neuronal activity during active recall was quantified by calculating coherence between cortical sites. Psychometric performance outside of MEG included Hopkins Verbal Learning (HVLT) and Trail Making Tests (EF). Results: At resection participants with slow growing left temporal tumors showed primary connectivity in the homotopic right hemisphere. By 8-weeks post-resection, the highest coherent activity included connection with left inferior temporal regions. Those with right hemisphere tumors demonstrated primary...

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