Signs often ask challenging questions, reinforcing presentations made in the Zoo's Discovery Center, or alert viewers to look for signs of animal habitation.
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+).
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.
The light stayed lit for as long as the lever was associated with reinforcement, but was turned off during reinforcer presentation.
The rate of reinforcer presentation is also of importance and reminds one of the theoretical positions of the State Regulation hypothesis.
If the flap was not opened within 5 s after a reinforcer presentation, the water dipper was lowered and the cubicle light was turned off.
A constant-probability VI 75-s schedule based on the sequence of intervals described by Catania and Reynolds [21] was operative throughout all the trials, pausing only during reinforcer presentation (5 s) and the inter-trial intervals (10 s).
If integrity involves the re-presentation of the self over time then this reinforced the presentation of an ideal, heroic self, which could not be questioned, demanding unthinking trust.
On FA day 14, rats were reintroduced to the chambers for a single cue reactivity test session, and responses on the previously active lever were reinforced by presentation of the discrete cue complex on an FR1 (cue-reinforced lever presses).
Following reinforcer presentations, the two squares switched sides at random, but were never displayed on the same side more than twice in a row.
Rose explored how she acquired a network of mentors throughout her presentation, reinforcing the value of finding formal and informal mentors in varying career phases and from different institutions.
