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REINFORCING PROPERTIES OF ONSET OF AUDITORY-STIMULATION
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REINFORCING EFFECTS OF ILLUMINATION CHANGE IN DIFFERENT PHASES OF RATS DIURNAL CYCLE
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RELATION OF RANDOM ACTIVITY TO FOOD DEPRIVATION
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EFFECT OF AGE + EXPERIENCE ON BAR PRESSING + ACTIVITY IN RAT
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ENTWISTLE O, 1959, GERONTOLOGIA, V3, P261
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DISCRIMINATION AND REVERSAL LEARNING AS A FUNCTION OF CHANGE OF SENSORY STIMULATION
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OPEN-FIELD EXPLORATION AS A FUNCTION OF AGE
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