Neural substrates of symptoms of depression following concussion in male athletes with persisting postconcussion symptoms

Archives of General Psychiatry
Jen-Kai ChenAlain Ptito

Abstract

Depressed mood is frequently reported by individuals who have sustained cerebral concussion but little is known about the nature of this alteration in mood state. To investigate whether the symptoms of depression reflect an ongoing pathophysiological change following concussion. Cohort study with male athletes using functional and structural neuroimaging. Hospital laboratory and imaging facility. Fifty-six male athletes with and without concussion were divided into (1) a no depression symptom, concussed group, (2) a mild depression symptom, concussed group, (3) a moderate depression symptom, concussed group, and (4) a healthy control group. All athletes filled out a postconcussive symptoms checklist and the Beck Depression Inventory II and underwent a magnetic resonance imaging session, which included T1, T2, and fluid-attenuated inversion recovery sequences, as well as functional magnetic resonance imaging (fMRI), during which they performed a working memory task. (1) Behavioral: response speed and accuracy on the working memory task performed during the fMRI session; (2) functional imaging: brain activation patterns associated with the working memory task obtained using blood oxygen level-dependent fMRI; and (3) structural im...Continue Reading

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