Abstract：
:Olfactory attention may be important in generating odor-induced tastes - an arguably universal form of synesthesia - by ensuring that the taste concurrent is captured by the nose and olfaction, not by the mouth and gustation (oral-capture). To examine the role of olfactory attention in generating odor-induced tastes and oral capture we tested a small sample (n=4) of participants with likely impairments in olfactory attention - individuals with mediodorsal thalamic nucleus (MDNT) lesions. These participants were compared to two sets of controls on tests of olfactory attention, oral capture, odor and flavor perception, and control tasks. MDNT participants demonstrated impaired olfactory attention and enhanced oral capture. Greater oral capture was associated with greater olfactory attentional impairment. These findings imply that olfactory attention may be important in attributing odor-induced tastes to the olfactory modality. However, unlike for visual binding and for the neurodevelopmental synesthesias, where attention may be necessary to demonstrate both phenomena, olfactory attention deficits did not impair flavor binding or the experience of odor-induced tastes.
journal_name
Brain Cognjournal_title
Brain and cognitionauthors
Tham WW,Stevenson RJ,Miller LAdoi
10.1016/j.bandc.2011.05.008subject
Has Abstractpub_date
2011-10-01 00:00:00pages
71-9issue
1eissn
0278-2626issn
1090-2147pii
S0278-2626(11)00105-9journal_volume
77pub_type
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