Discrete waves, recorded from the ventral nerve photoreceptor, occur in the light and in the dark. Spontaneous waves, on the average, are smaller than light-evoked waves. This suggests that not allâ€¦ (More)

Discrete waves of depolarization evoked by dim pulses of light in dark-adapted ventral nerve photoreceptors in Limulus show fluctuation in their latency. To a resolution of 5-10 microm the latencyâ€¦ (More)

American journal of optometry and physiologicalâ€¦

1986

A theoretical equation is derived to predict the apparent path of a Pulfrich target moving with constant velocity in a plane that intersects the pupillary plane of an observer. Generally, theâ€¦ (More)

An equation is presented describing the angular velocity of an image, viewed by an observer when a plane mirror is undergoing angular velocity. The image velocity is determined at the observer'sâ€¦ (More)

ture. From numerous experiments it follows that the gamma fibres, which are responsible for the basic reflex arch that controls the muscle tone, are much thinner than the motor and sensory fibres. Itâ€¦ (More)

American journal of optometry and physiologicalâ€¦

1982

An equation to determine the weight of a spherical lens as a function of its density, shape, and power is presented. I found that if center thickness and size are held constant, lens weight increasesâ€¦ (More)

American journal of optometry and physiologicalâ€¦

1980

The usual (geometric) procedure to determine the chromaticity coordinates of a color that results from the additive mixture of colored stimuli is to plot the coordinates of these stimuli on the CIEâ€¦ (More)