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tactual display

a device for transmitting information that is to be read or otherwise processed through the use of touch. Tactual displays may provide braille output from a computer or information in letter shapes. They may use simple vibrators, raised pins, or electrocutaneous stimulation of the skin. Tactual displays are useful for people with visual impairment, and some are used for assisting people with hearing loss. See also tactile sensory aid.

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Psychology term of the day

January 26th 2025

blind

blind

adj.

1. denoting a lack of sight. See blindness.

2. denoting a lack of awareness. In research, a blind procedure may be employed deliberately to enhance experimental control: A single blind is a procedure in which participants are unaware of the experimental conditions under which they are operating; a double blind is a procedure in which both the participants and the experimenters interacting with them are unaware of the particular experimental conditions; and a triple blind is a procedure in which the participants, experimenters, and data analysts are all unaware of the particular experimental conditions.