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Social and Behavioral Sciences Commons™
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Full-Text Articles in Social and Behavioral Sciences
Superior Episodic Memory In Inconsistent-Handers: A Replication And Extension Using Fnirs, Ruth Propper, Neil Patel, Stephen D. Christman, Christophe Carlei
Superior Episodic Memory In Inconsistent-Handers: A Replication And Extension Using Fnirs, Ruth Propper, Neil Patel, Stephen D. Christman, Christophe Carlei
Department of Psychology Faculty Scholarship and Creative Works
A large body of evidence supports the existence of a robust handedness difference in episodic memory retrieval, with inconsistent-handedness being associated with superior memory across a wide variety of paradigms, including superior retrieval of lab-based and real world memories. Despite superior episidoc memory in inconsistent-handers, and despite neuroanatomical and neurophysiological differences in cortical regions between inconsistent- and consistent-handers, we are aware of no studies to date that have examined physiological activity in the brains of inconsistent- versus consistent-handers while engaged in memory tasks. The purpose of this paper, therefore, is to present a first look at this issue, using functional …
Relationship Between Sustained Unilateral Hand Clench, Emotional State, Line Bisection Performance, And Prefrontal Cortical Activitya Functional Near-Infrared Spectroscopy Study, Ruth Propper, Kyle Dodd, Stephen D. Christman, Tad T. Brunyé
Relationship Between Sustained Unilateral Hand Clench, Emotional State, Line Bisection Performance, And Prefrontal Cortical Activitya Functional Near-Infrared Spectroscopy Study, Ruth Propper, Kyle Dodd, Stephen D. Christman, Tad T. Brunyé
Department of Psychology Faculty Scholarship and Creative Works
Sustained unilateral hand clenching alters perceptual processing and affective/motivational state, with these alterations presumed to reflect increased hemispheric activity contralateral to the side of motor movement. However, data from electroencephalographic and imaging studies are contradictory regarding the relationship between sustained hand clenching and brain activity. In order to investigate the relationship between brain activity, sustained unilateral hand clenching, and changes in affect and perceptual processing, frontal hemispheric activity was measured via functional near-infrared spectroscopy (fNIRS), using derived O2Hb prior to, during, and post-sustained unilateral hand clench. Participants’ mood and spatial perception were recorded pre- and post-clenching. Sustained unilateral hand clenching …