Control of television presentation reinforced a meek challenge.
Other public health experts said that Dr. Levin's presentation reinforced their assessment that the long-term health consequences of the attacks were not likely to be severe for the general population.
We begin this day with an hour-long presentation reinforcing the importance of teachers as guides in developing the next generation of scientifically literate citizens.
Consumers view the chilled cabinet as providing convenience and quality and suppliers have managed to generate and maintain this perception through rapidly changing portfolios of products whose branding and presentation reinforce it.
In the PREE, the loss of responding that occurs in extinction is slower when the conditioned stimulus (CS) has been paired with a reinforcer on some of its presentations (partially reinforced) instead of every presentation (continuously reinforced).
During fear acquisition, both the CS+ and CS– were presented eight times, with 75% of the CS+ presentations being reinforced.
Sessions 57 60 comprised only test trials; thus there were six reinforced presentations of w, six of z, and 15 nonreinforced presentations of each transfer CS signalled by each occasion setter (15 A… w−, 15 A… z−, 15 B… w−, 15 B… z−, 6 w+−, 6 z+).
In experiment 1, the data were examined by observing the rate of responding (magazine entries) during the presentation of the reinforced stimuli and non-reinforced stimuli.
The mean number of responses made during presentations of the reinforced components A and B, the unreinforced components C and D, the unreinforced compound AB and the reinforced compound CD are shown in Fig. 4.
The reinforced presentations of w and z were included to ensure the animals did not stop responding altogether on the test trials; as the critical comparison was between responding on same and different trials, rather than with responding to the target alone, this difference in reinforcement experience did not affect interpretation of the results.
