ECON 1 Lecture Notes - Data Analysis, Lateralization Of Brain Function, Takers
Document Summary
E-reader 1: asymmetrical brain activity discriminates between positive and. Brain activity during sad or happy facial expression recorded. Greater activation of left frontal in response to the happy segments. Relation between ontogeny of affective response systems and cerebral asymmetry, studied eeg asymmetry in 10-month-old infants in response to positive and negative stimuli. Infants were presented to videotaped presentations of happy or sad facial expressions while their frontal activation was reported. Infant sat in mother"s lap facing video monitor while eeg was recorded from left and right frontal and parietal regions. Positive and negative affective stimuli consisted of a videotape of an actress generating either happy or sad facial expressions. Half the infants viewed happy face first and half the sad face. Results invalid/unsignificant (infants were not as interested in the video as expected) Happy epochs elicited greater relative left frontal activation than sad epochs. Happy epochs also elicited less activity (inverted) in the left than the right frontal region.
