Representing within-session response rates proportionally and entirely.

Por Schaal, D W
Publicado em 1996

The effects of morphine on fixed-interval patterning and temporal discrimination.

Por Odum, A L, Schaal, D W
Publicado em 2000

Responding of pigeons under variable-interval schedules of signaled-delayed reinforcement: effects of delay-signal duration.

Por Schaal, D W, Branch, M N
Publicado em 1990

Food-deprivation level alters the effects of morphine on pigeons' key pecking.

Por Odum, A L, Haworth, S C, Schaal, D W
Publicado em 1998

Pigeons may not remember the stimuli that reinforced their recent behavior.

Por Schaal, D W, Odum, A L, Shahan, T A
Publicado em 2000

Key pecking of pigeons under variable-interval schedules of briefly signaled delayed reinforcement: effects of variable-interval value.

Por Schaal, D W, Schuh, K J, Branch, M N
Publicado em 1992

Cocaine's effects on food-reinforced pecking in pigeons depend on food-deprivation level.

Por Schaal, D W, Miller, M A, Odum, A L
Publicado em 1995

Mechanisms underlying the effects of unsignaled delayed reinforcement on key pecking of pigeons under variable-interval schedules.

Por Schaal, D W, Shahan, T A, Kovera, C A, Reilly, M P
Publicado em 1998

Discrimination of methadone and cocaine by pigeons without explicit discrimination training.

Por Schaal, D W, McDonald, M P, Miller, M A, Reilly, M P
Publicado em 1996