Imaging cognition: An empirical review of pet studies with normal subjects
Journal of Cognitive Neuroscience
Journal of Cognitive Neuroscience
Journal of Cognitive Neuroscience
Journal of Cognitive Neuroscience
Journal of Cognitive Neuroscience
Long-Latency ERPs and Recognition of Facial Identity
Journal of Cognitive Neuroscience
Wada Testing Reveals Frontal Lateralization for the Memorization of Words and Faces
Journal of Cognitive Neuroscience
Perceptual and Semantic Components of Memory for Objects and Faces: A PET Study
Journal of Cognitive Neuroscience
Journal of Cognitive Neuroscience
Material-specific neural correlates of recollection: Objects, words, and faces
Journal of Cognitive Neuroscience
SC'04 Proceedings of the 4th international conference on Spatial Cognition: reasoning, Action, Interaction
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The frontal cortex has been described as playing both ''setspecific'' and ''code-specific'' roles in human memory processing. Set specificity refers to the finding of goal-oriented differences in activation patterns (e.g., encoding relative to retrieval). Code specificity refers to the finding of different patterns of activation for different types of stimuli (e.g., verbal/nonverbal). Using a two (code: verbal, nonverbal) by two (set: encoding, retrieval) within-subjects design and fMRI, we explored the influence of type of code and mental set in two regions in the frontal cortex that have been previously shown to be involved in memory. A region in the dorsal extent of the inferior frontal gyrus (BA 6/44) demonstrated code-specific effects. Specifically, an interaction of material type with hemisphere was obtained, such that words produced predominantly left-lateralized activation, whereas unfamiliar faces elicited predominantly right-lateralized activation. A region of the right frontal polar cortex (in or near BA 10), which has been activated in many memory retrieval studies, showed set-specific activation in that it was more active during retrieval than encoding. These data demonstrate that distinct regions in the frontal cortex contribute in systematic yet different ways to human memory processing.