refreshInterval property

Member of

<display>

Syntax

display.name.refreshInterval

Read Only

Type

number

Remarks

This property reports the vertical refresh interval in milliseconds of the display system.

The refresh interval shows the minimum time that stimuli can be presented on the current display monitor before they can be erased. This can be important information for studies that rely on fast presentation times, e.g. if you want to present stimuli for 10ms but the refreshInterval of the display is longer (e.g. 16.67ms), the stimuli will be presented for 16.67ms even if you set the presentation duration to 10ms in your script.

Examples

The following displays the value of refreshInterval in a text stimulus:

<text myText>
/ items= ("refreshInterval = <% display.refreshInterval %>")
</text>

The following displays how to store the refreshInterval in the raw data file.

<data>
/ columns = (display.refreshInterval)
</data>