Displays

Name: A label for the visual display. Names and numbers are attributed serially and automatically by LabMaestro, and may not reflect the ID number listed by your operating system.

IsAssociated: Indicates if the display is associated with the current LabMaestro Projects Files (*.lm)

IsMainDisplay: Indicates if launched experiments will be shown on this display.

ViewingDistance: During launched experiments, the Main Display's viewing distance is used to calculate the size of stimuli that are measured in degrees of visual angle instead of pixels, as illustrated in Spatial Unit Type . This distance refers to how far the participant will be from the screen while viewing it.

DeviceType: Specifies the type of device as recognized by LabMaestro. LabMaestro currently supports monitors with fixed physical dimensions, such as LCD screens.

PhysicalSize: Reports the length and width of the connected display screen in centimeters, as it is stored and read from the hardware device. The physical size of the Main Display is used when running experiments to determine the rendering size of stimuli that are set in centimeters, as illustrated in Spatial Unit Type .

Resolution: Reports the number of horizontal and vertical pixels shown in the current video mode.

RefreshRate: Reports the number of times per second that the display can refresh its image in the current video mode.

DotsPerInch: DPI is a unit used to report the density of pixels on a screen. It represents the number of individual dots or pixels that can fit in a linear inch of the display. The value is determined by the current video mode's resolution and refresh rate. The term DPI has its roots in the printing industry's standard practices, and is often used synonymously with PPI, which stands for pixels per inch.

It is important to note that when using a consumer monitor (as opposed to a VPixx research display such as the PROPixx projector) selecting a non-native video mode may cause video artifacts such as scaling and interpolating. These artifacts originate from the device itself. To minimize the likelihood and magnitude of artifacts, we suggest referring to your device’s operating manual and setting your consumer monitor to operate at its native resolution and refresh rate.