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什么是感官系统?
Sensory systems detect stimuli—such as light and sound waves—and transduce them into neural signals that can be interpreted by the…
舌头和味蕾
The surface of the tongue is covered with various small bumps called papillae, which either distribute what has been ingested (filiform papillae) or…
味觉
Gustation is a chemical sense that, along with olfaction (smell), contributes to our perception of taste. It starts with the activation of receptors…
嗅觉
The sense of smell is achieved through the activities of the olfactory system. It starts when an airborne odorant enters the nasal cavity and reaches…
听力
When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency…
毛细胞
Hair cells are the sensory receptors of the auditory system—they transduce mechanical sound waves into electrical energy that the nervous…
耳蜗
The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are…
前庭系统
The vestibular system is a set of inner ear structures that provide a sense of balance and spatial orientation. This system is comprised of…
视网膜
The retina is a layer of nervous tissue at the back of the eye that transduces light into neural signals. This process, called phototransduction, is…
视觉
Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed…
体感
The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as…
温度感知
Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is…
研究风味编码的新方法
The sense of taste allows animals to detect chemicals in the environment, giving rise to behaviors critical for survival. When Gustatory Receptor…
可视化视觉适应
Many techniques have been developed to visualize how an image would appear to an individual with a different visual sensitivity: e.g., because of…
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