psc 2 exam 2

psc 2 exam 2 - Sensation and perception 1 How do we measure...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Sensation and perception 1. How do we measure sensory experience? What is the absolute threshold? - using Psychophysics (link between physical stimuli and subjective sensation) - absolute threshold: the minimum level of stimulation that can be detected 2. What is signal detection theory? - one is to detect a true/false stimulus and report it (true/false alarm) 3. Is pain adaptive? - yes 4. What is the gate-control theory of pain? - factors that affect the perception of pain and the pain isn’t perceived as strong 5. Describe the major structures of the human eye: cornea, iris, pupil, lens, retina. - cornea: focus the lens - iris: controls how much light go into the eye - pupil: opening in the center of the iris that allows light goes in - lens: refract light to be focused on the retina - retina: responds to light by relaying the image to other neurons 6. What are the three layers of cells in the retina and what are their functions? - ganglion cell layer: transmit visual info to the brain - bipolar cells: transmit signals from photo receptor to ganglion cells - photoreceptor: contains rods and cones Photoreceptor bipolar ganglion 7. What are rods? What are cones? Where are they primarily located? - rods: important for motion (retina) - cones: responsible for seeing color (retina) 8. What is the optic chiasm? - the point where images from left and right eyes cross over 9. What is the Ames room? - spatial perception 10. What is change blindness? (remember the video) - focusing on something so much that don’t notice sth has changed 11. What are some of the major Gestalt organizational principles discussed in class? Figure and ground? Grouping? - the whole is greater than some of its parts (triangle = 3 lines, yet we say it’s a triangle) - size consistency: we recognize size despite distance Learning 1. Who was Pavlov and why were his studies so important? - Pavlov: Russian, started the behaviorism, classical condition
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2. What is classical conditioning? - unconditioned stimulus (food) and unconditioned response (saliva) conditioned stimulus (bell) and conditioned response (saliva) 3. Define and give examples of the following: Unconditioned stimulus, unconditioned response, conditioned stimulus, conditioned response. - US: unlearned, leads to natural response - UR: uncontrolled response - CS : was natural, paired with unconditioned stimulus - CR: response to a conditioned response 4. What is extinction? - extinction: disassociation of conditioned response and conditioned stimulus (if no reward/punishment given, action is forgotten) 5. What is stimulus generalization? What is stimulus discrimination? -
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 7

psc 2 exam 2 - Sensation and perception 1 How do we measure...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online