Sensation and Perception

Question 1

Hair Receptors

Answer 1

Hearing, rotational and linear acceleration

Question 2

Nociceptors

Answer 2

Pain and noxious stimuli

Question 3

Osmoreceptors

Answer 3

Tonicity, blood osmolarity and salinity

Question 4

Olfactory

Answer 4

Smell

Question 5

Thresholds

Answer 5

Degree to which an individual perceives differences WEBERS law (larger stim- smaller stim)/ smaller stim

Question 6

Signal Detection Theory

Answer 6

Differences in perception of a stimulus based on internal and external factors

Question 7

Adaptation

Answer 7

Change in threshold due to environmental change

Question 8

Structure of the Eye

Answer 8

Cornea, Pupil, Lens (focuses Light), Fovea @ focal point, near optic nerve directs information to brain, Retina = image detector

Question 9

Parts of retina

Answer 9

Rods= light absorbing cells of retina, electrical signal single rhodopsin pigment low sensitivity to detail and permit night vision. Cones= 3 rhodopsin pigments, color and detail, best in bright light and concentrated at fovea.

Question 10

What fibers cross at optic chiasm

Answer 10

Peripheral vision fibers aka nasal fibers

Question 11

Temporal fibers pass to

Answer 11

inner side ofeye but then cross at the optic chiasm aka left - right and right- left