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Title

The neural basis of love as a subliminal prime: an event-related functional magnetic resonance imaging study

Authors
Hamilton, A F de C
Grafton, S T
Published in Journal of Cognitive Neuroscience. 2007, vol. 19, no. 7, p. 1218-30
Abstract Throughout the ages, love has been defined as a motivated and goal-directed mechanism with explicit and implicit mechanisms. Recent evidence demonstrated that the explicit representation of love recruits subcorticocortical pathways mediating reward, emotion, and motivation systems. However, the neural basis of the implicit (unconscious) representation of love remains unknown. To assess this question, we combined event-related functional magnetic resonance imaging (fMRI) with a behavioral subliminal priming paradigm embedded in a lexical decision task. In this task, the name of either a beloved partner, a neutral friend, or a passionate hobby was subliminally presented before a target stimulus (word, nonword, or blank), and participants were required to decide if the target was a word or not. Behavioral results showed that subliminal presentation of either a beloved's name (love prime) or a passion descriptor (passion prime) enhanced reaction times in a similar fashion. Subliminal presentation of a friend's name (friend prime) did not show any beneficial effects. Functional results showed that subliminal priming with a beloved's name (as opposed to either a friend's name or a passion descriptor) specifically recruited brain areas involved in abstract representations of others and the self, in addition to motivation circuits shared with other sources of passion. More precisely, love primes recruited the fusiform and angular gyri. Our findings suggest that love, as a subliminal prime, involves a specific neural network that surpasses a dopaminergic-motivation system.
Keywords AdolescentAdultAnalysis of VarianceBrain/blood supply/physiologyBrain MappingElectroencephalography/methodsEvoked Potentials/physiologyFemaleHumansImage Processing, Computer-Assisted/methodsLoveMagnetic Resonance ImagingOxygen/bloodPhotic Stimulation/methodsStatistics as Topic
Identifiers
PMID: 17583996
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Article (Published version) (2.6 MB) - public document Free access
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Research group Organisation de la fonction sexuelle humaine (692)
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ORTIGUE, Stéphanie et al. The neural basis of love as a subliminal prime: an event-related functional magnetic resonance imaging study. In: Journal of Cognitive Neuroscience, 2007, vol. 19, n° 7, p. 1218-30. https://archive-ouverte.unige.ch/unige:29405

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Deposited on : 2013-08-21

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