Frontal Lobe and Striatum Relationship Quiz

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Questions and Answers

How do animals determine where a sound came from?

Animals determine where a sound came from by comparing the time of arrival of the sound at each ear.

In which spatial coordinate system should stimuli be localized?

Stimuli should be localized in egocentric spatial coordinate system.

How do animals orient toward an interesting stimulus?

Animals orient toward an interesting stimulus by turning their head or body towards it.

How do animals navigate through space?

Animals navigate through space by integrating sensory information to create a mental representation of their surroundings. Signup and view all the answers

How can animals determine where a sound came from?

Animals determine where a sound came from by comparing the intensity of the sound at each ear. Signup and view all the answers

What is the role of the frontal eye fields in triggering saccadic eye movements?

The frontal eye fields work through the superior colliculus to trigger saccadic eye movements. Signup and view all the answers

What happens when the superior colliculus is silenced with lidocaine?

FEF stimulation no longer elicits saccades. Signup and view all the answers

How are saccadic head and eye movements coordinated?

The eyes move faster than the head, but they then counterrotate as the head catches up. Signup and view all the answers

Which brain region is involved in targeted hand movements?

Posterior parietal cortex. Signup and view all the answers

What is the consequence of lesions in the posterior parietal cortex?

Lesions cause 'optic ataxia'. Signup and view all the answers

How are head position and gaze direction graphed in eye movement control?

Head position and gaze direction are graphed in world-centered coordinates, eye position in head-centered coordinates. Signup and view all the answers

What are the different types of saccades, and how are they commanded?

Vertical and horizontal saccades, commanded by two different portions of the reticular formation. Diagonal saccades are commanded by the activation of both horizontal and vertical saccade generators simultaneously. Signup and view all the answers

How do eye muscles contribute to rotating the eyeball, and what is the energy requirement for looking straight ahead?

Three antagonistic pairs of eye muscles rotate the eyeball. Looking straight ahead requires the least amount of muscle energy. Signup and view all the answers

What is the significance of the superior colliculus in saccade control?

The saccade control pathway through the superior colliculus is topographically organized, allowing short connections to command saccades towards locations that respond to visual stimuli. Signup and view all the answers

How do auditory spatial receptive fields behave as the eyes move?

Auditory spatial receptive fields may move with the eyes as they move. Signup and view all the answers

What are the possible coordinate frames in which neurons encode spatial information?

Neurons can encode spatial information in eye-, head-, body-, or world-centered coordinates, with intermediate coordinate frames also being possible. Signup and view all the answers

What is the mechanism by which animals orient toward an interesting stimulus?

Animals orient towards an interesting stimulus by gazing at it and making saccades from one salient location to another. Signup and view all the answers

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