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#1
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expectation effects and smell
Abstract from
Neuron, May 19, 2005: 46 (4) p.671 http://www.neuron.org/content/current Cognitive Modulation of Olfactory Processing Ivan E. de Araujo, Edmund T. Rolls, Maria InĂ©s Velazco, Christian Margot, and Isabelle Cayeux "We showed how cognitive, semantic information modulates olfactory representations in the brain by providing a visual word descriptor, €ścheddar cheese€? or €śbody odor,€? during the delivery of a test odor (isovaleric acid with cheddar cheese flavor) and also during the delivery of clean air. Clean air labeled €śair€? was used as a control. Subjects rated the affective value of the test odor as significantly more unpleasant when labeled €śbody odor€? than when labeled €ścheddar cheese.€? In an event-related fMRI design, we showed that the rostral anterior cingulate cortex (ACC)/medial orbitofrontal cortex (OFC) was significantly more activated by the test stimulus and by clean air when labeled €ścheddar cheese€? than when labeled €śbody odor,€? and the activations were correlated with the pleasantness ratings. This cognitive modulation was also found for the test odor (but not for the clean air) in the amygdala bilaterally." -- -S It's not my business to do intelligent work. -- D. Rumsfeld, testifying before the House Armed Services Committee |
#2
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Steven Sullivan wrote:
Abstract from Neuron, May 19, 2005: 46 (4) p.671 http://www.neuron.org/content/current Cognitive Modulation of Olfactory Processing Ivan E. de Araujo, Edmund T. Rolls, Maria In=C3=A9s Velazco, Christian Margot, and Isabelle Cayeux "We showed how cognitive, semantic information modulates olfactory representations in the brain by providing a visual word descriptor, =E2=80=9Ccheddar cheese=E2=80=9D or =E2=80=9Cbody odor,=E2=80=9D during= the delivery of a test odor (isovaleric acid with cheddar cheese flavor) and also during the delivery of clean air. Clean air labeled =E2=80=9Cair=E2=80=9D was used= as a control. Subjects rated the affective value of the test odor as significantly more unpleasant when labeled =E2=80=9Cbody odor=E2=80=9D = than when labeled =E2=80=9Ccheddar cheese.=E2=80=9D In an event-related fMRI desi= gn, we showed that the rostral anterior cingulate cortex (ACC)/medial orbitofrontal cortex (OFC) was significantly more activated by the test stimulus and by clean air when labeled =E2=80=9Ccheddar cheese=E2=80= =9D than when labeled =E2=80=9Cbody odor,=E2=80=9D and the activations were corr= elated with the pleasantness ratings. This cognitive modulation was also found for the test odor (but not for the clean air) in the amygdala bilaterally." So when it is like this, please wash your feet more regularly and use a d= eo.=20 Ask a Japonese how we westerners smell, eating all those fermented milk=20 products like cheddar. Just disgusting. --=20 ciao Ban Bordighera, Italy=20 |
#3
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So, just to clarify & summarize the reason for your post's appearance
he Cognitive modulation would most likely also occur if the subject were to hear a test sound labeled "Mark Levinson" versus that exact same test sound labeled "Radio Shack", right? I can dig it. |
#4
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Ban wrote:
Steven Sullivan wrote: Abstract from Neuron, May 19, 2005: 46 (4) p.671 http://www.neuron.org/content/current Cognitive Modulation of Olfactory Processing Ivan E. de Araujo, Edmund T. Rolls, Maria In??s Velazco, Christian Margot, and Isabelle Cayeux "We showed how cognitive, semantic information modulates olfactory representations in the brain by providing a visual word descriptor, ???cheddar cheese??? or ???body odor,??? during the delivery of a test odor (isovaleric acid with cheddar cheese flavor) and also during the delivery of clean air. Clean air labeled ???air??? was used as a control. Subjects rated the affective value of the test odor as significantly more unpleasant when labeled ???body odor??? than when labeled ???cheddar cheese.??? In an event-related fMRI design, we showed that the rostral anterior cingulate cortex (ACC)/medial orbitofrontal cortex (OFC) was significantly more activated by the test stimulus and by clean air when labeled ???cheddar cheese??? than when labeled ???body odor,??? and the activations were correlated with the pleasantness ratings. This cognitive modulation was also found for the test odor (but not for the clean air) in the amygdala bilaterally." So when it is like this, please wash your feet more regularly and use a deo. Ask a Japonese how we westerners smell, eating all those fermented milk products like cheddar. Just disgusting. Actaully, this work suggests that *belief* that Westerners smell bad , could have as much or more effect on Japanese perception, as an actual smell. |
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