@article{allison1997153-9,
	abstract = {We measured the gain and phase of vertical vergence in response to disjunctive vertical oscillations of dichoptic textured displays. The texture elements were m-scaled to equate visibility over the area of the display and were aperiodic and varied in shape so as to avoid spurious binocular matches. The display subtended 65 degrees and oscillated through peak-to-peak amplitudes from 18 arc min to 4 degrees at frequencies from 0.05 to 2 Hz - larger ranges than used in previous investigations. The gain of vergence was near 1 when the stimulus oscillated at 18 arc min at a frequency of 0.1 Hz or less. As the amplitude of stimulus oscillation increased from 18 arc min to 4 degrees, vergence gain decreased at all frequencies, which is evidence of a nonlinearity. Gain declined with increasing stimulus frequency but was still about 0.5 at 2 Hz for an amplitude of 18 arc min. Phase lag increased from less than 10 degrees at a stimulus frequency of 0.05 Hz to between 100 degrees and 145 degrees at 2 Hz. Overall, the dynamics of vertical vergence resemble the dynamics of horizontal vergence and cyclovergence.},
	author = {Howard, I. P. and Allison, R.S. and Zacher, J. E.},
	date-modified = {2012-07-02 19:27:24 -0400},
	doi = {10.1007/PL00005735},
	journal = {Exp Brain Res},
	keywords = {Vergence},
	number = {1},
	pages = {153-9},
	title = {The dynamics of vertical vergence},
	url-1 = {http://dx.doi.org/10.1007/PL00005735},
	volume = {116},
	year = {1997},
	url-1 = {https://doi.org/10.1007/PL00005735}}

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