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Ganzfeld

n.

1. a homogeneous visual field, resulting from stimulation of both retinas by diffuse, uniform illumination. This is typically accomplished by looking through white spheres (or the halves of a ping-pong ball) in a dimly red-lit room.

2. in parapsychology experiments, a technique in which the participant is isolated from the sensory environment (e.g., by covering the eyes and placing headphones, usually playing white or pink noise, over the ears). [German, “whole field”; coined by Wolfgang Metzger]

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Psychology term of the day

January 24th 2025

risk–rescue rating

risk–rescue rating

a formula comparing the inherent risk of a method of attempted suicide with the likelihood of discovery and rescue.