psychology Cannon quiz 6

The figure shows the response of a touch receptor in response to two stimulus strengths. What can you conclude about the relationship between the strength of the stimulus and the likelihood of the touch receptor to fire?

The harder the push against the skin, the more likely it is that the touch receptor will fire.

what does the figure demonstrate?

The left visual cortex receives information about what we see in the right half of the visual field.

The depth cue of motion parallax accounts for the fact that while you are moving forward, you will perceive the

closest objects as moving fast and in the opposite direction

an absolute threshold

lowest intensity of a stimulus that a person can detect half the time

Use the same information from above for the distributions and decision line. Tell me what your Hit rate would would be?

.98

Which of the following research questions is a psychophysicist likely to be most interested in asking

How much louder must a sound be before a person can detect that it is louder than the original sound?

How does the figure illustrate the concept of a sensory threshold?

If the stimulus is weak enough, the sensory receptor will not reach threshold and will not produce an action potential.

What can you conclude about the map on the visual cortex?

Specific regions of visual space are organized as inputs to specific regions of the visual cortex.

neuropathic pain is caused by

a damaged or malfunctioning serious system

The concept of labeled lines refers to the fact that

a. a separate set of nerves transmits information from each sensory receptor organ to the brain.

18. As you and a friend throw a softball back and forth, you depend on _______ to help you determine how close the ball is getting to you and when and where to catch it.

binocular cues

what resulted in two colored lights cancelling each other out and producing white.

blue and yellow

According to the trichromatic theory of color vision, which of the following people would be the most likely to suffer from colorblindness?

cornell- whose long-wavelength cones lack sensitivity

he main distinction between sensation and perception is that only perception involves

interpreting what a stimulus is

sensory adaptation

is the progressive loss of responsiveness in sensory cells exposed in a constant stimulus

you have to increase the intensity of a light several times and determine the smallest change in the intensity of light that your friend can detect. You are measuring

just noticeable difference (JND)

your pupil would be the largest when

navigating through a dark forest at night

nociceptors are free nerve endings that are specialized to sense

pain

name the colors that are used to produce images on a computer screen/projector on a TV monitor

red, green, blue

a specialized sensory cell that detects stimuli is called a

sensory receptor cell

sychologists use the term "sensory modality" to refer to a

specific stimulation of a sensory receptor

I crushed my skin to produce flare - what neurotransmitter was being released to produce that flare?

substance p

noise is defined as

the firing of a sensory cell without a stimulus or in response to an irrelevant stimulus

the Retina is the

the surface at the back of the eye where the image is focused

The primary function of the three ossicles of the middle ear is to

transmit vibrations to the inner ear

The greatest adaptive, perceptual advantage to having two ears rather than one is that

we are more likely to localize sound with two ears

the visual field is

what we can see without moving our eyes

Your decision line is at the center of the no signal distribution. What do you call the area to the right of the decision line in the signal distribution?

yes