Akiko Yasuoka

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In vertebrates, the taste system provides information used in the regulation of food ingestion. In mammals, each cell group within the taste buds expresses either the T1R or the T2R taste receptor for preference-aversion discrimination. However, no such information is available regarding fish. We developed a novel system for quantitatively assaying taste(More)
Fish perceive water-soluble chemicals at the taste buds that are distributed on oropharyngeal and trunk epithelia. Recent progress in molecular analyses has revealed that teleosts and mammals share pivotal signaling components to transduce taste stimuli. The fish orthologs of taste receptors, fT1R and fT2R, show mutually exclusive expression in taste buds,(More)
Main olfactory receptor genes were isolated from a seawater fish, Fugu rubripes (pufferfish), and characterized. Two subfamilies of genes encoding seven transmembrane receptors were identified; one consists of five or more members, termed FOR1-1 to 5 of FOR1 subfamily, and the other appears to be a single copy gene, termed the FOR2 subfamily. FOR1 members(More)
A patch with one texture appears as a distinct perceptual entity within a background region with contrasting texture if their features differ adequately (texture segregation). If there is no pictorial depth cue such as size, the patch, which is a small closed region, may stand out. Incidentally, if two fields of random dots that are identical except for a(More)
Depth in a random dot stereogram is harder to perceive than that in a normal stereogram. Depth, however, is much easier to perceive when an outline is placed around the disparate region. This research uses a hybrid random dot stereogram in which a patch of dynamic random noise is set within a static field of random dots to test; the patch is binocularly(More)
Single cell cDNA libraries were constructed from taste bud cells of rat circumvallate papillae. Using three steps of screening, including differential hybridization, sequence analyses and in situ hybridization, a clone encoding a rat homolog of yeast adenylyl cyclase-associated protein (CAP) was identified to be highly expressed in a subset of taste bud(More)
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