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Experiment II.

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posted on 09.11.2017, 18:34 by Juan D. Delius, Julia A. M. Delius, Jennifer M. Lee

Right-to-left (modified, top) or left-to-right (standard, bottom) sweeping cathode ray z (brightness) signals that generated the white-on-black square patterns–shown here as negatives thereof–displayed on the monitor screen to be discriminated by pigeons.