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April 17, 2019 – 12:40 AMT
PanARMENIAN.Net – The researchers identified a pattern of brain activity who predicts anger known during dream, according to a new study of healthy adults published in JNeurosci. The research could potentially inform efforts to understand the neural basis of the emotional content of nightmares, characteristic of various mental disorders and sleep, according to News Medical reports.
Although emotions are felt both at waking and dreaming, few studies have studied the brain mechanisms underlying the affective component of the dream. Pilleriin Sikka and his colleagues at Turku University, Skövde University and Cambridge University have discovered a common emotional mechanism between the two states of consciousness.
The researchers obtained electroencephalographic recordings of participants during two separate nights in a sleep laboratory. After five minutes of REM sleep, participants were woken up and invited to describe their dream and to evaluate the emotions they experienced. Individuals who had greater brain activity in the alpha band on the right side than the left side of the frontal cortex during the evening vigil and during REM sleep felt more anger in their dreams. This neuronal signature – called frontal alpha asymmetry (FAA) – has been badociated with anger and self-regulation during wakefulness. Together, these findings suggest that the FAA may reflect a universal indicator of emotion regulation.
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