![]() Exteroceptor- located near/at the surface of the skin, detects stimuli on the surface of the body.Nocireceptor- detects pain (specialized chemoreceptor). ![]() Mechanoreceptor- detects touch and sound (mechanical stimuli such as vibrations, as well as pressure applied to skin).Photoreceptor / Electromagnetic - detects light/electromagnetic waves (ie.Thermoreceptor- detects temperature (heat).eye, tongue, ear, skin) to the brain or spinal cord. Sensory pathways: the pathways followed by a nerve impulse from a sensory organ (eg.For example, a series of different pitches played for a subject to test which he/she can detect (humans can detect pitches ranging from 20 to 20,000 Hz). Psychophysics: the psychological study of the relationship between a physical stimuli and mental response.For example, our inner ear uses this process to make recurring loud noises sound softer. Sensory adaptation: Our sensory neurons adapt to (become less sensitive/ignores) stimuli that are constantly there. ![]() Accurate Rejection - signal absent and not detected.False Positive - signal absent, but detected (eg.Miss - signal present, but not detected.Signal detection theory: used to predict when and how a signal will be recognized amidst other sensory information. ![]() You are holding a dumbbell, and someone puts a stone on that dumbbell, can you detect it with your eyes closed? For humans, the stone must be at least 2% of the dumbbell for you to detect that change.
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