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Psychology

Theses/Dissertations

Memory

University of Iowa

2016

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Memory Mechanisms Of Hand Gesture In Communication And Learning, Caitlin Ann Hilliard Aug 2016

Memory Mechanisms Of Hand Gesture In Communication And Learning, Caitlin Ann Hilliard

Theses and Dissertations

Spontaneous co-speech hand gestures robustly affect learning and memory. Viewing or producing hand gestures during conversation facilitates the encoding, consolidation, and retention of the information in speech. Despite these effects, the cognitive and neural mechanisms supporting this relationship remains unknown. In Experiment 1, I explored the memory mechanisms supporting hand gesture by working with patients with damage to their hippocampus and thus their declarative memory system. Participants engaged in discourse tasks that disproportionately engaged the hippocampus. I found that patients gestured less overall than healthy comparisons across all tasks, suggesting that the hippocampus indeed plays a role in gesture production ...