Left parietal cortex is modulated by amount of recollected verbal information.
In two earlier experiments, we reported that left parietal cortex activity covaried with the amount of pictorial information recollected. The present experiment addressed the question whether our earlier results would generalize to verbal materials. Participants studied a series of word pairs and were then tested on individual old and new words in a modified remember/know task. In this task, participants were required to indicate whether recollection was accompanied by retrieval of study pairmates or not. As before, we operationally defined 'amount recollected' as the contrast between these two types of remember response. We found that the same left parietal region previously identified as sensitive to amount of recollected pictorial information is also sensitive to amount of recollected verbal information.
Vilberg
Kaia L
KL
Department of Neurobiology and Behavior, Center for the Neurobiology of Learning and Memory, University of California, Irvine, California 92697-3800, USA. kvilberg@uci.edu
Rugg
Michael D
MD
D000161:Acoustic Stimulation; D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D001921:Brain / Q000502:physiology; D001931:Brain Mapping; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D011939:Mental Recall / Q000502:physiology*; D009483:Neuropsychological Tests; D010296:Parietal Lobe / Q000502:physiology*; D011930:Reaction Time; D021641:Recognition, Psychology / Q000502:physiology; D013060:Speech; D013067:Speech Perception / Q000502:physiology*; D055815:Young Adult