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Biomedical subjects

M D Rabin

Publications and source records attributed to M D Rabin.

4 recordsLinked to original sources

Chemosensory neuroanatomy and physiology.

Three nasal/oral sensory systems, which are anatomically and physiologically distinct, mediate smell, taste, and irritation. However, all three systems may be stimulated by food chemicals (which have "flavors" for the individual), and their receptors are located in adjacent oral and nasal cavities. The three sensory systems each have tiny cerebral cortical representations in humans, and interact with ventral forebrain areas attributed roles in affect and incentive. The complexity of these interactions makes it difficult for affected patients to identify readily which chemosensory system is malfunctioning.

Chemoreceptor Cells↗

Odor recognition: familiarity, identifiability, and encoding consistency.

The investigation examined the association between the perceived identity of odorous stimuli and the ability to recognize the previous occurrence of them. The stimuli comprised 20 relatively familiar odorous objects such as chocolate, leather, popcorn, and soy sauce. Participants rated the familiarity of the odors and sought to identify them. At various intervals up to 7 days after initial inspection, the participants sought to recognize the odors among sets of distractor odors that included such items as soap, cloves, pipe tobacco, and so on. The recognition response entailed a confidence rating as to whether or not an item had appeared in the original set. At the time of testing, the participants also sought to identify the stimuli again. The results upheld previous findings of excellent initial recognition memory for environmentally relevant odors and slow forgetting. The results also uncovered, for the first time, a strong association between recognition memory and identifiability, rated familiarity, and the ability to use an odor label consistently at inspection and subsequent testing. Encodability seems to enhance rather than to permit recognizability. Even items identified incorrectly or inconsistently were recognized at levels above chance.

Adult↗