Question 1

Which of the following best describes the process of sensation?

Accepted Answer

The biological process of transducing physical stimuli from the external world into neural code.

Question 2

According to signal detection theory, whether a stimulus is perceived depends on:

Accepted Answer

Both the sensory experience and the judgment made by the subject.

Question 3

What is the absolute threshold?

Accepted Answer

The minimum intensity required for a stimulus to be detected 50% of the time.

Question 4

Which formula represents Weber's Law?

Accepted Answer

$\Delta I / I = k$

Question 5

Which of the following is an example of divided attention?

Accepted Answer

Listening to music while studying for an exam.

Question 6

What is the main function of the cornea in vision?

Accepted Answer

It is the outer surface of the eye and helps focus light.

Question 7

Which theory explains color vision by stating that we have three types of cones sensitive to different wavelengths?

Accepted Answer

Trichromatic theory

Question 8

A person who can see objects that are close up but not distant objects is experiencing:

Accepted Answer

Nearsightedness (myopia)

Question 9

Which structure in the eye changes shape to focus light onto the back of the eye?

Accepted Answer

Lens

Question 10

What is transduction in the context of sensation?

Accepted Answer

The conversion of light into a neural message that the brain can interpret.

Question 11

Which of the following best describes priming in perception?

Accepted Answer

Prior exposure to a stimulus or related information shapes how new sensory input is interpreted.

Question 12

Which cells in the retina are responsible for detecting color?

Accepted Answer

Cones

Question 13

According to the opponent-process theory, which color pairs are processed as opposites?

Accepted Answer

Red-green, yellow-blue, white-black

Question 14

Which of the following is NOT a characteristic of light that contributes to color vision?

Accepted Answer

Density

Question 15

If a person is unable to distinguish between red and green, which visual disorder do they likely have?

Accepted Answer

Color blindness

Question 16

Which process allows the pupil to adjust the amount of light entering the eye?

Accepted Answer

Constriction and expansion of the iris

Question 17

Which pathway do sensory signals follow from the eye to the brain?

Accepted Answer

Photoreceptors $\rightarrow$ sensory receptors $\rightarrow$ thalamus $\rightarrow$ cortex

Question 18

Which of the following best illustrates selective attention?

Accepted Answer

Focusing only on the professor's voice during a noisy class.

Question 19

Which statement about perception is most accurate?

Accepted Answer

Perception is a cognitive process that involves interpreting sensory information using context and expectations.

Question 20

A student is asked to detect the difference between two weights. According to Weber's Law, what determines their ability to notice the difference?

Accepted Answer

The proportion of the difference in intensity to the original intensity.

Sensation and Perception: Foundations, Thresholds, and Visual System

Study Guide - Practice Questions