PSYC 2740 Lecture Notes - Lecture 7: Functional Magnetic Resonance Imaging, Psychopathy, Electrodermal Activity
30 Mar 2016
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Speciic condiions or simulus: personality trait, psychological response. Electrodermal acivity: provides a measure of sympatheic nervous acivity (skin conductance, emoional reacivity. Intensity and persistence of emoion in response to simuli. Thought to be elevated between those who self-injure. Pressure exerted by blood in the artery walls. Common measure of stress response: heart rate. Good indicator of stress/anxiety, cogniive efort: cardiac reacivity. The increase in bp and heart rate in imes of stress. Chronic cardiac reacivity linked with type a personality (hosility) Measures brain acivity (electricity) via electrodes to determine areas of brain acivity: funcional magneic resonance imaging (fmri) Shows images of areas of brain acivity: ex. Decreased limbic acivaion when viewing violent images for those high in psychopathy vs a control group (who had more acivity: mri: other relevant indings. Correlated with increased frontal brain acivaion to negaive images. Correlated with increased frontal brain acivaion to posiive images. Ascending reicular acivaing system: gateway" for nervous simulaion of cortex, introversion.
