Sensation and Perception Exam 1

Sensation is the process of __________ a stimulus and possibly converting it into a private experience.

Detecting

Perception involves __________ meaning to a detected sensation.

Assigning

The conversion of a physical stimulus into a neural response is known as __________.

Transduction

Gustav Fechner is known as the founder of __________, the quantitative study of mind-body relationships.

psychophysics

The minimum detectable stimulus is referred to as the __________ threshold.

Absolute

Weber's Law states that the Just Noticeable Difference (JND) is __________ to the stimulus level.

proportional

Signal Detection Theory is used to distinguish __________ from __________.

signal; noise

The action potential is an __________ process for neural communication.

electrochemical

The two types of cells responsible for motion detection and fine detail in vision are __________ cells and __________ cells.

M cells; P cells

The __________ is the part of the retina responsible for high acuity vision and is dominated by cones.

Fovea

Phototransduction involves light activating __________, causing a decrease in __________ release.

photoreceptors; glutamate

The __________ cortex transforms circular receptive fields from the LGN into elongated stripe receptive fields.

Striate

Tilt Aftereffect is an example of __________ adaptation, where prolonged exposure reduces neural response.

selective

During the critical period of vision development (4-5 years), disorders like __________ and __________ can arise if not properly addressed.

Amblyopia; Strabismus

The term __________ refers to the smallest change in a feature that can be detected.

Minimum discriminable acuity

The role of __________ neurons in the visual system is still under research, especially in the koniocellular layers.

small

Contrast sensitivity in visual patterns is an essential aspect of the __________ function, which relates to visibility.

Contrast Sensitivity

What is the Lateral Geniculate Nucleus (LGN)?

The Lateral Geniculate Nucleus (LGN) is a structure in the thalamus that relays visual information from the retina to the visual cortex.

______ is a reduction in response caused by prior stimulation

adaption

Cortical neurons tend to have a preferred eye is known as _______

ocular dominance

_______—- is the perceptual illusionary tilt

Tilt aftereffect

human vision is coded in

spatial frequency

what are the 3 wyas vision is developed?

amblyopia, strabismus, anisometropia

amblyopia

reduced spatial vision in an otherwise healthy eye

strabismus

a misalignment of the two eyes

anisometropia

a condition in which the two eyes have different refractive error

There appears to be a ____- of about 4-5 years early in life cataracts and strabimus can lead to serioues problems