Electrodermal reactivity to emotional stimuli in healthy subjects and patients with disorders of consciousness

Annals of Physical and Rehabilitation Medicine
Jacques LuautéFabien Perrin

Abstract

After a coma, one major challenge is the detection of awareness in patients with disorders of consciousness. In some patients, the only manifestation indicative of awareness is an appropriate emotional response. Preferred music is a powerful medium to elicit emotions and autobiographical memory. Furthermore, music has been shown to improve cognitive functions both in healthy subjects and patients with neurological impairment. We hypothesized that signs of awareness could be enhanced in some patients with disorders of consciousness under appropriate emotional stimulation such as preferred music and also probably preferred odors. To investigate an objective, easily recordable marker of emotions at the patients' bedside, electrodermal activity (skin conductance level, SCL) was assessed with stimulations in auditory and olfactory modalities, notably with preferred music, neutral sound, preferred odors, and neutral odors. The study was conducted in 11 patients with disorders of consciousness (DOC) and 7 healthy participants. In healthy subjects, the mean amplitude of the SCL was increased during exposure to preferred music as compared to neutral sounds (respectively: 0.00037±0.0004 vs. - 0.00004±0.00019μS). No significant difference...Continue Reading

Citations

Oct 1, 2019·Current Opinion in Neurology·Luca PaduaCostanza Pazzaglia
Oct 17, 2019·Frontiers in Human Neuroscience·Jiajie ZhuHaibo Di
Nov 26, 2020·Journal of Medical Systems·Çiğdem Gülüzar AltıntopMehmet Akif Yazar
Jul 3, 2021·Brain Sciences·Giulio E LancioniLorenzo Desideri
Oct 7, 2021·Disability and Rehabilitation·Giulio E LancioniLorenzo Desideri

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