title: Activation of right parietal cortex during memory retrieval of nonlinguistic auditory stimuli.
abstract: In neuroimaging studies, the left ventral posterior parietal cortex (PPC) is particularly active during memory retrieval. However, most studies have used verbal or verbalizable stimuli. We investigated neural activations associated with the retrieval of short, agrammatical music stimuli (Blackwood, 2004), which have been largely associated with right hemisphere processing. At study, participants listened to music stimuli and rated them on pleasantness. At test, participants made old/new recognition judgments with high/low confidence ratings. Right, but not left, ventral PPC activity was observed during the retrieval of these music stimuli. Thus, rather than indicating a special status of left PPC in retrieval, both right and left ventral PPC participate in memory retrieval, depending on the type of information that is to be remembered.
authors.affiliation: Department of Psychology, University of California, Berkeley, California, USA. eklostermann@berkeley.edu
authors.forename: Ellen C
authors.initials: EC
authors.lastname: Klostermann
authors.forename: Psyche
authors.initials: P
authors.lastname: Loui
authors.forename: Arthur P
authors.initials: AP
authors.lastname: Shimamura
mesh_terms: D000161:Acoustic Stimulation; D001307:Auditory Perception / Q000502:physiology*; D001921:Brain / Q000502:physiology; D001931:Brain Mapping; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009146:Music; D010296:Parietal Lobe / Q000502:physiology*; D011930:Reaction Time; D021641:Recognition, Psychology / Q000502:physiology*; D013997:Time Factors; D055815:Young Adult
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