Emotion Recognition in Low-Spatial Frequencies Is Partly Preserved following Traumatic Brain Injury

BioMed Research International
Alessia CeleghinMarina Zettin

Abstract

After a Traumatic Brain Injury (TBI), emotion recognition is typically impaired. This is commonly attributed to widespread multifocal damage in cortical areas involved in emotion processing as well as to Diffuse Axonal Injury (DAI). However, current models suggest that emotional recognition is subserved by a distributed network cantered on the amygdala, which involves both cortical and subcortical structures. While the cortical system is preferentially tuned to process high spatial frequencies, the subcortical networks are more sensitive to low-spatial frequencies. The aim of this study was to evaluate whether emotion perception from low-spatial frequencies underpinning the subcortical system is relatively preserved in TBI patients. We tested a group of 14 subjects with severe TBI and 20 matched healthy controls. Each participant was asked to recognize the emotion expressed by each stimulus that consisted of happy and fearful faces, filtered for their low and high spatial frequencies components. Results in TBI patients' performances showed that low-spatial frequency expressions were recognized with higher accuracy and faster reaction times when compared to high spatial frequency stimuli. On the contrary, healthy controls did no...Continue Reading

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Citations

Jul 16, 2020·Soa--chʻŏngsonyŏn Chŏngsin Ŭihak = Journal of Child & Adolescent Psychiatry·Seungwon Chung, Jung-Woo Son
Jan 24, 2020·Neuroscience and Biobehavioral Reviews·Elisabetta PalagiIvan Norscia
Jun 4, 2021·Neuropsychological Rehabilitation·Kimberley WallisLinda E Campbell

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