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how the receptors in our body respond to and detect external stimulus energy |
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| the brain's further processing of sensory signals that lead to our experience of the world |
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| the process by which sensory receptors transform physical energy (touch, sound, light) into electrical energy (how neurons communicate) |
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| sensory receptors; transduce chemicals into taste information |
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| chemicals used by the olfactory system of a organism to facilitate communication between individuals |
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| organ required for the use of pheromones |
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Are Pheromones identified in humans? |
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| Responsible for turning mechanical energy into an electrical signal. |
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| Touch Sensitivity in certain structures is dependent on what? |
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| density of receptors in the skin, eg mouth & hands have more densley packed receptors |
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| aka Kinesthesia: the awareness of the position of the body structures in space. |
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| Psychological event of painful perception |
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| A - delta Fibers perceive: |
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| free nerve endings which serve the sensations of something being either hot or cold |
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| (hearing): the ability to detect sound |
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| a disturbance of mechanical energy produces a wave |
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| the distance between two peaks in a wave |
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| Hertz (cycles per second) |
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height of the peaks in a sound wave (loudness) |
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| measurement of Amplitude (loudness) |
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| Decibels (dB; sound pressure level) |
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The process of breaking up a complex wave into simpler waves. |
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Production of Action Potentials in inner ear |
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Organ of Corti sits on Basilar Membrane; hair cells move with basilar membrane, producing action potentials |
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Georg Von Bekesy's Theory |
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| Place Theory: different frequencies displace different regions of the basilar membrane which in turn leads to perception of different pitches |
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| Organ of the inner ear that performs a fourier transformation |
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the firing rate of hair cells corresponds with the pitch that we perceive |
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| Timing differences of information hitting each ear; difference in tie helps localize info |
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| Responsible for language comprehension |
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| Responsible for language production |
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| "Shadowing" aka Dichotic Listening |
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| Allows us to selectively tune auditory systems |
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| Cocktail Party Phenomenon |
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| Demonstrates how, even when you're not listening, salient auditory stimuli can "capture your attention" ie. hearing your name from across the room |
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| Contains neurons that are sensitive to motion information |
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| Visual Perception is dependent on heirarchical mechanisms |
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| information from higher levels can influence lower, "earlier" levels of processing |
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| we can choose which stimuli we attend to even before we process their basic features |
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| we take in sensory information, process it and THEN select which aspects of the stimuli should be attended. |
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