Guido Schulze

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The acute effects of morphine sulfate were assessed using a battery of complex food-reinforced operant tasks that included temporal response differentiation (TRD, n = 5), delayed matching-to-sample (DMTS, n = 6), progressive ratio (PR, n = 9), incremental repeated acquisition (IRA, n = 9), and conditioned position responding (CPR, n = 7) tasks. Performance(More)
The acute effects of d-amphetamine were assessed using a battery of complex food-reinforced operant tasks that included responding in delayed matching-to-sample (DMTS, n = 6), conditioned position responding (CPR, n = 7), progressive ratio (PR, n = 8), temporal response differentiation (TRD, n = 4), and incremental repeated acquisition (IRA, n = 9) tasks.(More)
Acute effects of delta-9-tetrahydrocannabinol (THC) were assessed using a battery of food-reinforced complex operant tasks that included responding under delayed matching to sample (DMTS, n = 6), conditioned position response (CPR, n = 8) progressive ratio (PR, n = 8), temporal response differentiation (TRD, n = 3) and incremental repeated acquisition (IRA,(More)
The acute effects of diazepam (Valium) were assessed using a battery of complex food-reinforced operant tasks that included responding in delayed matching to sample (DMTS, n = 5), conditioned position response (CPR, n = 7) progressive ratio (PR, n = 8), temporal response differentiation (TRD, n = 4), and incremental repeated acquisition (IRA, n = 9) tests.(More)
We have examined the population characteristics of a group of 69 monkey subjects performing in a complex operant test battery designed to generate behaviors indicative of specific brain functions. These functions include learning, short-term memory and attention, time perception, position and color discrimination and motivation. Performance by a subject in(More)
The acute behavioral effects of atropine sulfate were assessed using a battery of complex food-reinforced operant tasks that included: temporal response differentiation (TRD, n = 7); delayed matching-to-sample (DMTS, n = 6), progressive ratio (PR, n = 8), incremental repeated acquisition (IRA, n = 8), and conditioned position responding (CPR, n = 8).(More)
The effects of physostigmine were assessed in rhesus macaques using behavior in several complex tasks designed to model aspects of time estimation [temporal response differentiation (TRD)], short-term memory [delayed matching-to-sample (DMTS)], motivation [progressive ratio (PR)], learning [incremental repeated acquisition (IRA)], and color and position(More)
The acute behavioral effects of marijuana smoke were assessed in rhesus monkeys using a battery of food-reinforced complex operant tasks that included incremental repeated acquisition (IRA, n = 9), conditioned position responding (CPR, n = 8), progressive ratio (PR, n = 8), delayed matching to sample (DMTS, n = 6), and temporal response differentiation(More)