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intracranial record of emotions evoked by subliminal words

Dirk Bruere at Neopax dirk at neopax.com
Tue May 24 07:43:34 EST 2005


Allen L. Barker wrote:

> 
> www.pnas.org/cgi/doi/10.1073/pnas.0500542102
> 
> Published online before print May 16, 2005
> Proc. Natl. Acad. Sci. USA, 10.1073/pnas.0500542102
> 
> Neuroscience
> 
> A direct intracranial record of emotions evoked by subliminal words
> 
> ( amygdala | semantic | visual masking )
> 
> [...]
> 
> A classical but still open issue in cognitive psychology concerns the
> depth of subliminal processing. Can the meaning of undetected words
> be accessed in the absence of consciousness? Subliminal priming
> experiments in normal subjects have revealed only small effects whose
> interpretation remains controversial. Here, we provide a direct
> demonstration of semantic access for unseen masked words. In three
> epileptic patients with intracranial electrodes, we recorded brain
> potentials from the amygdala, a neural structure that responds to
> fearful or threatening stimuli presented in various modalities,
> including written words. We show that the subliminal presentation of
> emotional words modulates the activity of the amygdala at a long
> latency (>800 ms). Our result indicates that subliminal words can
> trigger long-lasting cerebral processes, including semantic access
> to emotional valence.

Is it true that textual subliminals where words are scrambled works 
predominantly on the right hemisphere? For emaxple wrsod lkie tish?

-- 
Dirk

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