Lightbox with rotating light source

Psychology

Accession Number: 2012.psy.140

Instrument Name: Lightbox with rotating light source

Description:

The lightbox consists of a hollow metal box with small rubber legs at each bottom corner. A semi-translucent plastic sheet is attached to the top surface of the box by velcro at each edge. The following are found on the side of the box: one dial, two metal switches, one three-prong plug for a clock, and one “fuse” knob. An electrical cord with plug emerges from the box’s side.

Primary Materials: Metal, rubber, plastic, velcro

Markings:

Manufacturer’s label, sticker on side of box: “Marietta Apparatus Company. Marietta. Ohio, USA”, Labels for switches: “BUZZ/OFF”, “LOCK/OFF/MOMENTARY”, “FUSE”, Department label (metal printed label nailed onto instrument): “Department of Psychology Research Equipment No. 394 MCT 71″, Plastic embossed labels on side of box: “1/2 A SLO BLO”, “115 Vac”, “STANDARD CLOCK ONLY”

Dimensions (cm): Height = 12 , Width = 33, Length = 43

Function:

Ultimate function unknown. However, the instrument is still operational. When turned on, the box emits a buzzing sound and small point of orange light rotates at moderate speed along surface of box. Possibly used for studies of reaction times: participant traces finger along surface of box to follow moving light. When light stops, reaction time is measured, as well as position of finger relative to light (?).

Condition:

Good. Minor staining on plastic top cover, velcro detached on one edge of box, metal sides are slightly dirty.

Manufacturer: Marietta Apparatus Company

Date of Manufacture: c.1960s

Provenance:

Department of Psychology, University of Toronto

Donated to UTSIC: No