کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
924739 921264 2011 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The impact of mediodorsal thalamic lesions on olfactory attention and flavor perception
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب شناختی
پیش نمایش صفحه اول مقاله
The impact of mediodorsal thalamic lesions on olfactory attention and flavor perception
چکیده انگلیسی

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.


► The paper explores whether impaired olfactory attention affects flavor perception.
► Attention to odors was impaired in medio-dorsal thalamic nucleus MDNT lesion patients.
► MDNT patients tended to attribute odors to the mouth relative to controls.
► This greater oral capture was associated with attentional impairment.
► Impaired olfactory attention did not affect flavor binding or odor–taste synesthesia.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Brain and Cognition - Volume 77, Issue 1, October 2011, Pages 71–79
نویسندگان
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