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Exploring Sensation and Perception in Psychology

Dive into the world of sensation and perception, understanding the variables such as absolute threshold and sensory adaptation. Explore the workings of your senses from sight to touch and examine the intricate parts of the eye.

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Exploring Sensation and Perception in Psychology

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  1. Psy 1513 - Allen Ch 4Review

  2. Variables • Sensation: • Information arriving from sense organs • (eye, ear, etc.) • Perception: • Mental process of organizing sensations into meaningful patterns

  3. Variables Absolute Threshold – Minimum amount of stimuli needed to experience a sensation Just Noticeable Difference – amount of increase in stimuli to make a perceivable difference in sensation

  4. Variables Sensory adaptation- decrease in response to an unchanging stimulus Selective attention – attending only to a specific stimulus (ex. Cocktail Party Effect)

  5. Variables • Your Senses: • Sight – Visual • Stimulus – visual spectrum • Hearing – Auditory • Stimulus – sound waves • Tasting – Gustation • Stimulus – chemicals in food particles • Smelling – Olfaction • Stimulus – chemicals in the air • Touching – Somesetic • Stimulus – mechanical, chemical, temperature

  6. Variables Lens – focuses light onto the retina Cornea – protective covering over the eye Retina – location of photoreceptor cells (rods & cones) Blind Spot – area where the optic nerve leaves the eye, because no photoreceptors are found here we are “blind” in that area

  7. Variables • List the parts of the eye. Know location and function of each part. • cornea (covering), lens (focus light), retina (photoreceptors), optic nerve (carries signal to brain), blind spot (where nerve leaves eye)

  8. Variables

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