romantic love: an fmri study of a neural mechanism for mate choice
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Romantic Love: An fMRI Study of a Neural Mechanism for Mate Choice. Yan Lee ( JoJo ) Lilly Zhang Tin Poon (Tina). General Question Addressed in This Paper. Which specific brain system is associated with “courtship attraction”?. Why is this question interesting. - PowerPoint PPT PresentationTRANSCRIPT
Romantic Love: An fMRI Study of a Neural Mechanism for Mate Choice
Yan Lee (JoJo)Lilly Zhang
Tin Poon (Tina)
General Question Addressed in This Paper
•Which specific brain system is associated with “courtship attraction”?
Why is this question interesting
• A primary aspect of reproduction• Brain mechanisms that are involved
in a relationship are largely unknown
• Love is a cross-cultural universal experience
• Love is primarily a motivation system
• Love leads to various emotions.
What specific hypothesis was the study supposed to address?• Hypothesis 1: “romantic love
would involve subcortical dopaminergic pathways that mediate reward”• Hypothesis 2: “romantic love
would involve neural pathways associated with goal-directed behaviors”
• Age: 18-26• Duration: 1-17 months being in love• Prescanning orally interview• Passionate Love Scale which
measures several traits commonly associated with romantic love (Cronbach’s alpha for questionnaire reliability= 0.81)
METHOD USED
Study of Romantic Love by fMRI
There are 4 Tasks1- Photo of the beloved is shown
(30s)2- Countback distraction (40s)3- Neutral stimulus (30s)4- Similar countback task (20s)
*Procedures repeated for 6 times
Results• Activation in the right ventral
tegmental area (VTA), caudate nucleus in the right medial and posterodosal body
• VTA= reward system• VTA sends projections to the caudate
nucleus• Hypotheses 1 and 2 are supported• Those who self-reported higher levels
of romantic love also showed greater activation in the right anteromedial caudate body
Important Things about Romantic Love
• Romantic love may be a primary motivation system–Focus on specific reward
• Romantic love is distinct from sex drive–fMRI studies show activation in different brain regions
Bartels and Zeki (2000;2004) • Investigated brain activity in 17 men and
women who had been in love for longer duration (8-17 months)
Results• Same as study by Fisher and Aron• Also found activity in the anterior
cingulate, mid-insular cortex and posterior cingulate cortex
• Also showed increased activity in the ventral pallidum
Mate choice is dynamic: it changes across time
Cont.Based on a study of Prairie Voles• Prairie voles show increased
activity in the ventral pallidum• They form a distinct
preference for partners• The injection of dopamine
agonist can alter the female preference of her mate
Conclusion• Reward regions using dopamine are
activated during feelings of romantic love
• More Money= More Love?–A study by Knutson, both the right anteromedial caudate body and the monetary reward region are activated when people are in love
• Activation of VTA and caudate nucleus in early stage romantic love may consist of general arousal
Improvement• There may be bias in self-report • fMRI study cannot show the
causation of mate-choice• Should have included a neutral
image of the brain and a fMRI image of being in love
What’s Next?• The more wealthy the partner is, the more you love?•Will dopamine resolve hatred?
ReferenceFisher H, Aron A, Brown L. 2005
Romantic Love: An fMRI Study of a Neural Mechanism for Mate Choice