Temporal resolution and temporal summation. In order for us to discriminate the two lines, a response given by detector array C to F is required. The detector array now has different temporal integration times. Because of the shorter integration time for detector array C and beyond, such an array will be able to discriminate the two flashes that are separated by an interval of t. Fig. 2. Speed of integration allows the detection of intermittent stimuli.
Flashes of light is presented to the eye.
Temporal integration time is related to temporal summation. Temporal summation refers to the eye s ability to sum the effects of individual quanta of light over time. However, temporal summation only occurs within a certain period of time, called the critical duration or critical period. According to Bloch s law of vision, within this critical duration, threshold is reached when the total luminous energy is reached. Bloch s Law of temporal summation is analogous to Ricco s Law of spatial summation.