Showing posts with label meaning. Show all posts
Showing posts with label meaning. Show all posts

Monday, April 21, 2008

ARTICLE UPDATE - I know how you feel: task-irrelevant facial expressions are spontaneously processed at a semantic level.

Preston SD, Stansfield RB.

Cognitive, Affective and Behavioral Neuroscience, 8, 54-64.

Previous studies have demonstrated that emotions are automatically processed. Even with subliminal presentations, subjects involuntarily mimic specific facial expressions, are influenced by the valence of a preceding emotion during judgments, and exhibit slowed responses to personally meaningful emotions; these effects are due to reflexive mimicry, unconscious carryover of valence, and attentional capture, respectively. However, perception-action effects indicate that rapid processing should involve deep, semantic-level representations of emotion (e.g., "fear"), even in the absence of a clinical emotion disorder. To test this hypothesis, we developed an emotional Stroop task (Emostroop) in which subjects responded nonverbally to emotion words superimposed over task-irrelevant images of faces displaying congruent or incongruent emotional expressions. Subjects reliably responded more slowly to incongruent than to congruent stimuli, and this interference was related to trait measures of emotionality. Rapid processing of facial emotions spontaneously activates semantic, content-rich representations at the level of the specific emotion.

Thursday, November 15, 2007

ARTICLE UPDATE - Feeling the Real World: Limbic Response to Music Depends on Related Content

Eran Eldar, Ori Ganor, Roee Admon, Avraham Bleich and Talma Hendler

Cerebral Cortex, 17, 2828-2840

Emotions are often object related—they are about someone or something in the world. It is yet an open question whether emotions and the associated perceptual contents that they refer to are processed by different parts of the brain or whether the brain regions that mediate emotions are also involved in the processing of the associated content they refer to. Using functional magnetic resonance imaging, we showed that simply combining music (rich in emotion but poor in information about the concrete world) with neutral films (poor in emotionality but rich in real-world details) yields increased activity in the amygdala, hippocampus, and lateral prefrontal regions. In contrast, emotional music on its own did not elicit a differential response in these regions. The finding that the amygdala, the heart of the emotional brain, responds increasingly to an emotional stimulus when it is associated with realistic scenes supports a fundamental role for concrete real-world content in emotional processing.