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Neuro-Linguistic Programming
Research Data Base [ Dilts R, 1983. | Id:178 ]


Dilts R: EEG and representational systems. University of California, Santa Cruz - published in: Roots of NLP, Meta Publications 1983., 1983.

Abstract: The study, conducted at the Langley Porter Neuropsychiatric Institute in San Francisco, attempted to correlate eye movements to particular cognitive and neurophysiological processes. Dilts used electrodes to track both the eye movements and brain wave characteristics of 25 subjects who were asked questions related to using the various senses of sight, hearing and feeling for tasks involving both memory ("right brain" processing) and mental construction ("left brain" processing). Subjects were asked a series of questions in eight groupings. Each grouping of questions appealed to a particular type of cognitive processing-visual, auditory, kinesthetic, and emotional (visceral feelings). Each was also geared to either memory (non-dominant hemisphere processing) or construction (dominant hemisphere processing). Recordings of the subject's brain waves were taken as they answered the various questions. Data was gathered for the left and right hemispheres of both the occipital (visual) and central (kinesthetic) areas of the cortex. A computer analysis was done of the recorded EEG data to assess relevant brain wave changes in the subjects as they responded to the questions. Changes in amplitude for brainwave frequencies between .5 and 20 Hertz were computed and examined for significant shifts, primarily with respect to the alpha band (8-12 HZ). Interpretation of the data tended to confirm other tests (Kinsbourne, 1972; Kocel et al, 1972; and Galin & Ornstein, 1974) which showed that lateralization of eye movements accompanied changes in brain activity during different cognitive tasks. This pattern also seemed to hold for tasks requiring different senses. Dilts' recordings also suggested that an individual's most highly valued representational modality was reflected in his or her baseline brain wave pattern. Individuals who were primarily visually oriented showed low amplitude beta activity when their eyes were open and alpha spindles when their eyes were closed. Auditory individuals displayed high amplitude beta with intermittent alpha when their eyes were open or closed. Kinesthetically oriented individuals recorded high amplitude alpha waves whether their eyes were either opened or closed (if they were primarily oriented toward their inner feelings), or low amplitude beta with eyes opened or closed (if they were primarily tactile).

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