monika_fmri correlates of self-conscious emotion recognition
TRANSCRIPT
fMRI Correlates of Self-Conscious Emotion
Recognition
Monika WanisCade Warren
Dr. Chris Rorden’s Neuropsychology Lab
Basic Emotions
• Anger, disgust, fear, joy, sadness, surprise
• Universally recognized
• 9 months after birth
• Vital for survival
Self-Conscious Emotions
• Embarrassment, empathy, jealousy, guilt, hubris, pride, shame
• Universally recognized
• End of age 3
• Goals and achievements
Self-Conscious Emotions
• Driven by social interactions and social norms
• Require– Theory of mind– Capacity to evaluate the self– Understanding of social norms
• Useful for:– Achieving goals– Motivation of social behavior– Avoiding negative feelings– Gaining and maintaining social status
Stimuli
Stimuli
• Male and female– African American, Asian
American and Caucasian
• Plain white T-shirts, neutral grey background
• Waist up photos
Pride
• Positive appraisal of actions
• Low-intensity smile, expanded posture, slight head tilt, arms akimbo with hands on hips
Shame
• Perception of another persons perception
• Downward head tilt, slumped shoulders, narrowed chest
Neutrals
Study• Lay down in 3T scanner• Watch computer screen in mirror• Index finger button press when see consecutive repeat• Block design– 1.25 seconds for each photo, .25 seconds between each
photo, 15 second blocks• 4 conditions– Neutral Averted, Neutral Direct, Pride, Shame
• Forced Choice Rating – 93.94%• 3 Questionnaires
Participants
• 11 Participants–26 total–3 males, 8 females–Ages 18 – 35
Procedure
• Localizer – 30 seconds – locate brain
• Experiment – 7 minutes – press index finger button when see consecutive repeat
• Experiment – 13.5 minutes – same instructions
• T1 – 6.5 minutes – anatomical scan for template
• Experiment – 13.5 minutes – same instructions
Anticipated BOLD Activity (ROI)
• Ventromedial prefrontal cortex (vmPFC)– Mentalizing about self
• Right temproparietal junction (rTPJ)– Mentalizing about others
Anticipated BOLD Activity (ROI)• Fusiform face area– Viewing facial expressions
• Extrastriate body area– Viewing posture
• Amygdala– Low level emotion processing, fear
Statistics
• Statistical Contrasts– E.g., emotions > neutrals,
pride > directed gaze
• Statistical threshold – Looking for small signal,
family-wise error correction vs. uncorrected
Preliminary Results
• Amygdala (ROI)
– No significant activation (fearful vs. neutral)
Preliminary Results
• Left Extrastriate Visual Cortex
– Signal change correlated with emotions vs. neutral
Limitations• Data are VERY preliminary• Localizer does not seem to work• Self-conscious emotions universal but not salient• Fatigue • Novelty of stimuli• Does not address actual FEELINGS • Forced choice rating
Thanks!
• Dr. Chris Rorden• Cade Warren• Coordinators• SREBCS Participants