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Marcia K. Johnson 
Charles C. & Dorathea S. Dilley Professor (Ph.D., 1971, University of California, Berkeley) Personal Home Page, Lab Page My lab group studies human memory and considers such issues as the
component processes of reflection and consciousness, mechanisms of
veridical and distorted memory, memory disorders (resulting from
amnesia, frontal brain damage, aging), and the relation between emotion
and cognition. Ongoing research questions include: (1) A component
processes analysis of memory and cognition. What are the basic
"processing units" underlying memory? How are these component processes
organized and how do they interact? (2) Memory binding. How are
individual features of experience (e.g., color, shape, location,
emotion) bound together to create complex memories? What processes are
needed in addition to perceptual binding? (3) Reality monitoring/source
monitoring. How are the memory representations of perception and
thought (imagination, dreams, fantasies) alike and how are they
different? How are they discriminated, and why are they sometimes
confused? What is the role of emotion in memory distortions? More
generally, what is the relation between our attributions about the
sources of memories, knowledge, and beliefs, and their actual origins?
(4) Aging and memory. We are exploring age-related changes in memory in
all of the above--in identifying component processes of cognition, in
binding the attributes of memories, and in source monitoring. We use
cognitive/behavioral and neuroimaging (fMRI) techniques to investigate
these questions.
Sample Publications Raye, C.L., Johnson, M.K., Mitchell, K.J., Reeder, J.A. &
Greene, E.J. (2002). Neuroimaging a single thought: Dorsolateral PFC
activity associated with refreshing just-activated information. NeuroImage, 15, 447 - 453.
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