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13 Cards in this Set
- Front
- Back
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extrasensory perception (ESP) |
A claim that there is other ways to perceive without using the ordinary senses, such as through telepathy or direct communication of minds. James Randi offered four million dollars to anyone who could demonstrate ESP, but nobody was able to claim the prize. |
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Subliminal perception |
Perception that is below a person's absolute threshold for detecting them. People sometimes correctly sense a change in a scene even thogh the change took place too quickly to be consciously recognized. Processing without awareness occurs not only in perception but also in memory, thinking, and decision-making. |
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Perceptual Set |
A habitual way of perceiving, based on expectations. Such sets can come in handy, helping us fill in words. But they can also cause misconceptions and reduce our reactions to certain stimuli. |
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Semicircular canals |
Sense organs in the inner ear that contribute to equilibrium by responding to rotation of the head. Thin tubes that are filled with fluid that moves and presses on hairlike receptors whenever the head rotates. The receptors initiate messages that travel through a part of the auditory nerve that is not involved in hearing. |
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Equilibrium |
Sense of balance, lets us know when we are standing upright, falling, or rotating |
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Kinesthesis |
The sense of body position and movement of body parts; also called kinesthesia. This information is provided by pain and pressure receptors located in the muscles, joints, and tendons. |
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Phantom Pain |
The experience of pain in a missing limb or other body part. Possibly because the area in the sensory cortex that formerly corresponded to the missing body part has been invaded by neurons from another area. |
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Gate control theory of pain |
The theory that the experience of pain depends in part on whether pain impulses get past a neurological "gate" in the spinal cord and thus reach the brain. The gate is a pattern of neural activity that either blocks pain messages or lets those signals through. |
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Olfaction |
Sense of smell. The receptors for smell are embedded in a tiny patch of mucous membrane in the upper part of the nasal passage. Signals from the receptors are carried to the brain's olfactory bulb by the olfactory nerve, which is made up of the receptor's axons |
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Supertasters |
About 25% of people who live in a "neon" taste world. They perceive bitter food at least twice as biter, perceive sweet tastes as sweeter, salty as saltier, and feel more burn from ginger, pepper, and hot chilies. Over represented among women, Asians, Hispanics, and blacks. Comes as a result of having a large number of small, densely packed papillae. |
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umami |
The taste of monosodium glutamate (MSG), which is said to permit us to detect protein-rich foods. Closest English translation is "delicious" or "savory" |
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Taste buds |
Nests of taste receptor cells. They line the papillae, which are tiny bumps on the tongue. Human tongues can have as few as 500 or as many as 10,000 tastebuds. The actual receptors are inside the buds, 15 to 150 a bud. The cells send tiny fibers out through an opening in the bud. The receptor sites are on these fibers. |
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Papillae |
Knoblike elevation on the tongue, containing taste buds. |
