A large object, such as a tree trunk, will cause _____.
A) every neuron in one location column to fire, but no firing in any other column
B) a limited number of neurons to fire in only one ocular dominance column
C) firing of neurons in a number of different columns
D) every neuron in an orientation column to fire, but not in the location columns
The arrangement of ocular dominance columns in the cortex is best described as _____.
A) columns for both the left eye and right eye in each hypercolumn
B) columns for the left eye in the left hemisphere and for the right eye in the right
C) groupings of left eye columns adjacent to groupings of right eye columns
D) concentric areas, with the center columns for the left eye, and the surrounding columns for the right
Neurons respond preferentially to the right eye or the left eye. This phenomenon is referred to as _____.
A) hemispheric specialization
B) bilateral dominance
C) retinotopic disparity
D) ocular dominance
A(n) ________ is a location column that receives information about all possible orientations within a given area of the retina.
A) supercolumn
B) orientation
C) hypercolumn
D) action
Which statement 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.
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
B) 40 degrees
C) 90 degrees
D) 175 degrees
Ocular ____ columns are columns in which neurons respond better to input from one eye than to the other.
A) preference
B) dominance
C) Orientation
D) laterality
Using the techniques of both recording from neurons and ablation, researchers found that properties of the ventral and dorsal streams are established by two different types of _____ cells in the retina, which transmit signals to different layers of the _____.
A) bipolar; hippocampus
B) ganglion; hippocampus
C) ganglion; LGN
D) bipolar; hippocampus
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 the most brain area
C) moving stimuli activated different brain areas than stationary stimuli
D) cortical magnification is not detectable using fMRI
The brain imaging technique that tracks blood flow in the brain using magnetic fields is _____.
A) fMRI
B) ablation
C) ERP
D) PET scan
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