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Sensation And Perception 9th Edition By Goldstein – Test Bank

Test Bank—Chapter 4: Cortical Organization

MULTIPLE CHOICE

1. The ________ can be described as the electronic map of the retina on the cortex.

a.	visual map	c.	retinotopic map
b.	spatial map	d.	contextual map

ANS: C REF: Electronic Map of V1 MSC: Factual

2. The cortical magnification factor occurs in humans because

a.	a small area in the peripheral retina accounts for a large area in the cortex.
b.	the small area of the fovea accounts for a large area of the cortex.
c.	the lens accommodates so that the image is magnified on the retina.
d.	the area at the optic disk accounts for a large area on the cortex.

ANS: B REF: Electronic Map of V1 MSC: Conceptual

3. The brain imaging technique involving injecting a radioactive tracer into the blood is

a.	FMRI.	c.	lesioning.
b.	ablation.	d.	PET scan.

ANS: D REF: Method: Brain Imaging MSC: Factual

4. ________ is a brain imaging technique that tracks blood flow in the brain using magnetic fields. This tracking is possible because hemoglobin has magnetic properties.

a.	FRI	c.	ERP
b.	ablation	d.	PET scan

ANS: A REF: Method: Brain Imaging MSC: Factual

5. Dougherty et al. (2003) used brain imaging to investigate cortical magnification. Their primary finding was that _________.

a.	information presented in the peripheral vision activated the most brain area.
b.	information presented to the fovea activated most brain areas.
c.	moving stimuli activated different brain areas than stationary stimuli.
d.	cortical magnification is not detectable using fMRI.

ANS: B REF: Electronic Map of V1 MSC: Conceptual

6. The retinotopic map on the LGN has been determined by recording from neurons in the ______.

a.	retina	c.	LGN
b.	optic nerve	d.	MTL

ANS: C REF: Cortex is Organized in Columns MSC: Factual

7. Which of the following is NOT a type of column in the striate cortex?

a.	location	c.	orientation
b.	ocular dominance	d.	double dissociative

ANS: D REF: Cortex is Organized in Columns MSC: Factual

8. An electrode is placed in an orientation column that responds best to orientations of 45 degrees. The adjacent column of cells will probably best respond to orientations of

a.	5 degrees.	c.	90 degrees.
b.	40 degrees.	d.	225 degrees.

ANS: B REF: Cortex is Organized in Columns MSC: Conceptual

9. Which of the following is true regarding the organization of columns in the cortex?

a.	A location column can contain many orientation columns.
b.	An orientation column can contain many location columns.
c.	Location and orientation columns are located in different parts of the cortex.
d.	Action columns are present in both location and orientation columns.

ANS: A REF: Cortex is Organized in Columns MSC: Factual

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