Question 1

Which region has been implicated in attention?

Accepted Answer

The cingulate cortex is involved in attention processes, particularly in regulating emotional responses and cognitive functions.

Question 2

Cortical neurons that respond to information from more than one sensory modality are known as

Accepted Answer

Polymodal cells are cortical neurons that integrate and respond to information from multiple sensory modalities.

Question 3

Which region appears to be involved in the process of attention?

Accepted Answer

The posterior parietal lobe is involved in the process of attention, as it plays a key role in integrating sensory information and is crucial for spatial awareness and attention.

Question 4

A monkey is trained to expect a see a circle whenever a computer screen is blue. Which part of the cortex would most likely become active when the monkey is shown a blue screen without a shape?

Accepted Answer

The answer of A monkey is trained to expect a...

Question 5

Which portion of the body is represented most medially in the somatosensory cortex?

Accepted Answer

The leg is represented most medially in the somatosensory cortex, specifically in the paracentral lobule on the medial surface of the hemisphere.

Question 6

The representation of the human body in the somatosensory cortex especially emphasizes the

Accepted Answer

The somatosensory cortex has a disproportionate representation of the hands and lips, known as the sensory homunculus, reflecting their higher sensory acuity and importance in tactile perception.

Question 7

Which of the following body parts are not highly represented on the sensory homunculus?

Accepted Answer

The sensory homunculus represents the distribution of sensory neurons in the brain, with larger areas corresponding to more sensory input. The thighs have less sensory representation compared to the genitals, lips, and fingers.

Question 8

Which skin receptors are especially sensitive to stretching of the skin?

Accepted Answer

Ruffini's endings are mechanoreceptors that are particularly sensitive to skin stretch and contribute to the kinesthetic sense of and control of finger position and movement.

Question 9

The threshold of mechanical stimuli that will stimulate a fast-adapting Meissner's corpuscle is

Accepted Answer

Meissner's corpuscles are sensitive to light touch and are fast-adapting, meaning they respond quickly to changes in stimuli.

Question 10

The receptive fields of _______ are large and have vague borders.

Accepted Answer

Pacinian corpuscles have large receptive fields with vague borders, allowing them to detect pressure and vibration over a larger area.

Question 11

Which receptors are fast-adapting?

Accepted Answer

Meissner's and Pacinian corpuscles are fast-adapting receptors, meaning they respond quickly to changes in stimuli but do not maintain the response for a long duration.

Question 12

The receptive fields associated with Merkel's discs

Accepted Answer

Merkel's discs have receptive fields with an inhibitory surround, which helps in detecting fine details and textures.

Question 13

Refer to the figure.
 What is the receptor labeled A on this figure, and what type of senses are detected by this receptor?

Accepted Answer

The answer of Refer to the figure.
 What is the...

Question 14

You have managed to isolate and knock out the gene that controls the myelination of nerve fibers. This will cause the loss of most sensory functions except which of the following?

Accepted Answer

The answer of You have managed to isolate and knock...

Question 15

_______ nerve fibers conduct sensory information from which type of receptor types?

Accepted Answer

The answer of _______ nerve fibers conduct sensory information from...

Question 16

Skin stretching is detected by this type of receptor which has what type of receptive fields?

Accepted Answer

Ruffini's endings are mechanoreceptors that detect skin stretching and have large, vague receptive fields.

Question 17

Refer to the figure.
 This figure shows _______, which are involved with _______ touch.

Accepted Answer

The answer of Refer to the figure.
 This figure shows...

Question 18

Receptors in the skin that have small, sharp borders are _______ and _______.

Accepted Answer

Merkel's discs and Meissner's corpuscles are receptors in the skin that have small, sharp borders, allowing them to detect fine details and textures.

Question 19

Touch receptors such as Meissner's corpuscles deliver information to the central nervous system rapidly via _______ fibers.

Accepted Answer

Meissner's corpuscles are associated with Aβ fibers, which are myelinated and conduct signals rapidly to the central nervous system.

Question 20

The smallest diameter fibers linking receptors to the central nervous system are _______ fibers, which convey temperature, pain, and itching sensations.

Accepted Answer

C fibers are unmyelinated and have the smallest diameter, responsible for transmitting temperature, pain, and itching sensations.

Quiz 8: General Principles of Sensory Processing, Touch, and Pain

Which region has been implicated in attention?

Cortical neurons that respond to information from more than one sensory modality are known as

Which region appears to be involved in the process of attention?

A monkey is trained to expect a see a circle whenever a computer screen is blue. Which part of the cortex would most likely become active when the monkey is shown a blue screen without a shape?

Which portion of the body is represented most medially in the somatosensory cortex?

The representation of the human body in the somatosensory cortex especially emphasizes the

Which of the following body parts are not highly represented on the sensory homunculus?

Which skin receptors are especially sensitive to stretching of the skin?

The threshold of mechanical stimuli that will stimulate a fast-adapting Meissner's corpuscle is

The receptive fields of _______ are large and have vague borders.

Which receptors are fast-adapting?

The receptive fields associated with Merkel's discs

Refer to the figure. What is the receptor labeled A on this figure, and what type of senses are detected by this receptor?

You have managed to isolate and knock out the gene that controls the myelination of nerve fibers. This will cause the loss of most sensory functions except which of the following?

_______ nerve fibers conduct sensory information from which type of receptor types?

Skin stretching is detected by this type of receptor which has what type of receptive fields?

Refer to the figure. This figure shows _, which are involved with _ touch.

Receptors in the skin that have small, sharp borders are _ and _.

Touch receptors such as Meissner's corpuscles deliver information to the central nervous system rapidly via _______ fibers.

The smallest diameter fibers linking receptors to the central nervous system are _______ fibers, which convey temperature, pain, and itching sensations.

Quiz 8: General Principles of Sensory Processing, Touch, and Pain

Which region has been implicated in attention?

Cortical neurons that respond to information from more than one sensory modality are known as

Which region appears to be involved in the process of attention?

A monkey is trained to expect a see a circle whenever a computer screen is blue. Which part of the cortex would most likely become active when the monkey is shown a blue screen without a shape?

Which portion of the body is represented most medially in the somatosensory cortex?

The representation of the human body in the somatosensory cortex especially emphasizes the

Which of the following body parts are not highly represented on the sensory homunculus?

Which skin receptors are especially sensitive to stretching of the skin?

The threshold of mechanical stimuli that will stimulate a fast-adapting Meissner's corpuscle is

The receptive fields of _______ are large and have vague borders.

Which receptors are fast-adapting?

The receptive fields associated with Merkel's discs

Refer to the figure. What is the receptor labeled A on this figure, and what type of senses are detected by this receptor?

You have managed to isolate and knock out the gene that controls the myelination of nerve fibers. This will cause the loss of most sensory functions except which of the following?

_______ nerve fibers conduct sensory information from which type of receptor types?

Skin stretching is detected by this type of receptor which has what type of receptive fields?

Refer to the figure. This figure shows _______, which are involved with _______ touch.

Receptors in the skin that have small, sharp borders are _______ and _______.

Touch receptors such as Meissner's corpuscles deliver information to the central nervous system rapidly via _______ fibers.

The smallest diameter fibers linking receptors to the central nervous system are _______ fibers, which convey temperature, pain, and itching sensations.

Refer to the figure. This figure shows _, which are involved with _ touch.

Receptors in the skin that have small, sharp borders are _ and _.