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Daphne Gyamfi

Department of Human Nutrition, Foods, and Exercise, Virginia Tech, Blacksburg, VA, United States.

2 papers in the library · 5 citations · publishing 2023-2026

Papers

Dissociation and other trauma symptomatology are linked to imbalance in the competing neurobehavioral decision systems.

Frontiers in psychology January 1, 2023 Julia C Basso, Medha K Satyal, Kevin L Mckee et al. 5 citations

Depersonalization and trauma symptoms are linked to heightened impulsivity, increased risk-seeking, impaired emotional states, and a history of traumatic experiences. Using the Competing Neurobehavioral Decisions System theory, the study modeled survey and task data from 557 English-speaking U.S. adults. Results show that an imbalance favoring impulsive over executive systems—marked by lower valuation of future rewards, greater risk-seeking, and worse affective states—predicts more severe depersonalization and PTSD symptoms. This is the first evidence connecting dissociation to delay discounting, the tendency to prefer immediate over delayed rewards. Interventions such as episodic future thinking or mindfulness meditation may help reduce dissociative symptoms.

Theta oscillations are associated with movement during choreographed and improvised dance - a case series with Memphis Jookin': The Show.

Research square January 5, 2026 Noor Tasnim, Alana Hutchinson, Daphne Gyamfi et al.

Flow, a state of deep immersion linked to better performance and well-being, was studied in professional Memphis Jookin' dancers. Six dancers reported high levels of flow and greater interoceptive awareness than people trained in other mind-body practices. Two dancers wore EEG caps; one showed theta-band activity during dance across several brain regions, including the posterior cingulate and supplementary motor area. Resting-state functional connectivity increased after dance across theta, alpha, beta, and gamma bands. The findings suggest street dance elicits robust flow states with distinct patterns of brain activity and connectivity, highlighting dance as an embodied practice relevant for health.