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Psychology

Theses/Dissertations

Memory

Theses and Dissertations

2013

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Context And Target Search Reversal: Implicit Flexibility And Rapid Adaptation Of Relational Memories Using Visual Search, Ryan Hanson Dec 2013

Context And Target Search Reversal: Implicit Flexibility And Rapid Adaptation Of Relational Memories Using Visual Search, Ryan Hanson

Theses and Dissertations

Repeated perceptual exposure leads to increased accuracy and decreased response latency - referred to as perceptual facilitation or priming - and generally occurs in the absence of conscious memory experience. One example of a priming task which depends upon contextual relations is termed contextual cuing. It has long been held that context-dependent relations can only be acquired with deliberative or explicit processes. While context learning has historically been attributed to declarative memory, the existence of implicit context learning tasks may be better explained as an implicit relational learning process. Although implicit memories have long been characterized as relatively rigid, such tasks raise ...


The Role Of A Camkii/Pka-Protein Degradation-Glur2 Pathway In The Control Of Memory Updating Following Retrieval, Timothy Jarome Aug 2013

The Role Of A Camkii/Pka-Protein Degradation-Glur2 Pathway In The Control Of Memory Updating Following Retrieval, Timothy Jarome

Theses and Dissertations

Reconsolidation is thought to be a process whereby consolidated memories can be modified following retrieval. However, very little is known about the molecular mechanisms that regulate this reconsolidation process. In the present series of experiments we tested if memories "destabilize" or become labile following retrieval through a specific signaling pathway. We found that retrieval of a contextual fear memory differentially increased proteasome activity in the amygdala and hippocampus and resulted in unique changes in AMPA receptor subunit expression in these brain regions. These changes were dependent on CaMKII activity, which was required for increases in Rpt6-S120 phosphorylation, proteasome activity and ...


Attention And Criminal Charge, Profile And Description: The Effect On Prospective Person Memory, Lindsey Nicole Sweeney May 2013

Attention And Criminal Charge, Profile And Description: The Effect On Prospective Person Memory, Lindsey Nicole Sweeney

Theses and Dissertations

Prospective person memory is the ability to recognize and react to a missing or wanted individual that one has been asked to be on the lookout for in the future. Prospective person memory relies on several processes including face recognition, event-based prospective memory, and attention. Only recently has research on the role of visual attention on prospective person memory been examined. In this dissertation, the gap between prospective person memory and attention is addressed. Although research on prospective person memory is steadily increasing, the research in this area is still in its infancy and the exact memory mechanisms that affect ...