Quantitative study of ocular dominance
Macy, A., Ohzawa, I., and Freeman, R.D. (1982)
A quantitative study of the classification and stability of ocular dominance in the cat's visual cortex.
Exp. Brain Res. 48: 401-408.
We recorded from single cells in the cat's visual cortex to
quantitatively evaluate (1) the reliability of subjective assessments of
ocular dominance (101 cells) and (2) the stability of ocular dominance over
time (25 cells). We found that the correlation between subjective and
objective measures of this variable was poorer than expected, and was worst
for cells with low overall response strengths. This result appears to
reflect variability in the subjective assessment procedure. For the second
part of the study, we recorded from single cortical cells of 5-week-old
kittens, and made repeated objective measurements of ocular dominance over
time. Twenty-four of the twenty-five cells examined were quite stable in
ocular dominance for periods so long as 8 h. One unit was encountered which
showed substantial progressive shifts in ocular dominance over time.