Reversal- and Non-Reversal-Shift Discrimination Learning as a Function of Drive in Albino Rats

1974 ◽  
Vol 34 (2) ◽  
pp. 447-452
Author(s):  
Jerome S. Cohen ◽  
Gabor A. Telegdy
Keyword(s):  
Trial Block ◽  
Discrimination Learning ◽  
Water Deprivation ◽  
High Water ◽  
Drive Level ◽  
Simultaneous Discrimination ◽  
Albino Rats ◽  
Reversal Shift

Drive level affected reversal rather than non-reversal-shift learning during initial shift-discrimination trials. Animals under high water deprivation during the original simultaneous discrimination and reversal-shift discrimination made more initial (first trial-block) errors during reversal-shift than animals that were maintained on moderate deprivation during either or both discrimination tasks.

Sequential Effects in Simultaneous Discrimination Learning

1973 ◽  
Vol 37 (2) ◽  
pp. 463-469 ◽  
Author(s):  
Gerald B. Biederman
Keyword(s):  
Discrimination Learning ◽  
Color Discrimination ◽  
Performance Characteristics ◽  
Simultaneous Discrimination ◽  
Frequency Of Occurrence ◽  
Sequential Effects ◽  
Local Effects ◽  
Learning Procedure ◽  
Unequal Frequency ◽  
Random Program

Latency and accuracy effects were studied with pigeons in a simultaneous discrimination-learning procedure which manipulated sequential randomness of stimulus events from trial to trial. Ss were trained to perform 2 color-discrimination problems with equal or unequal frequency of occurrence. It was found that non-random trial sequences had no effect on over-all acquisition as measured by latency and accuracy, but significant effects from remote trials were a function of the randomness of stimulus events. Performance characteristics on remote trials had significant local effects. In random program sequences, the 2 discrimination problems were learned independently of one another.

Drive and Maturation Effects in the Development of Consummatory Behavior

1964 ◽  
Vol 15 (1) ◽  
pp. 295-302 ◽  
Author(s):  
Richard P. Moll
Keyword(s):  
Drive Level ◽  
Albino Rats ◽  
Consummatory Behavior ◽  
Practice Level ◽  
Time Eating ◽  
Food Consumed

A total of 48 albino rats were observed over a 15-day period to determine the effects of drive level, maturation, and practice level on eating latency, amount of time during a 5-min. interval spent in eating, amount of food consumed, and rate of eating. In general, the effects of maturation and practice followed expected lines, with facilitation of consummatory behavior accompanying both maturational and experiential development. Although higher-drive Ss have shorter latencies and spend more time eating, they consume less food per unit of time spent in mastication than lower-drive Ss.

Interaction of drive level and task complexity in verbal discrimination learning.

1974 ◽  
Vol 103 (4) ◽  
pp. 795-798
Author(s):  
Jeffrey A. Seybert ◽  
Dan M. Wrather ◽  
N. Jack Kanak ◽  
Ed Eckert
Keyword(s):  
Discrimination Learning ◽  
Task Complexity ◽  
Verbal Discrimination ◽  
Drive Level ◽  
Verbal Discrimination Learning ◽  
And Task

Discrimination Learning and Transposition Behaviour of Rats in a Water Tank Apparatus

1952 ◽  
Vol 4 (3) ◽  
pp. 91-100 ◽  
Author(s):  
Ian M. L. Hunter
Keyword(s):  
Discrimination Learning ◽  
Negative Stimulus ◽  
Albino Rats ◽  
Water Tank ◽  
Further Training ◽  
Size Discrimination ◽  
Relational Responding ◽  
Relational Properties ◽  
One Step ◽  
The One

The learning, by albino rats, of a size discrimination in a water-tank apparatus is described. The earliest discriminative behaviour of each of the six successful rats is of the one-look type in which the negative stimulus plays the major role. With further training, four of those subjects develop two-look discrimination in which relational properties of the stimuli are important as shown by the appearance of, first, one-step and, then, two-step transposition. The water-tank and jumping apparatuses are briefly compared. Evidence from studies of rats, monkeys and children is presented for the generalization that, within limits, the effect of practice on discriminative behaviour involving stimulus relata is to strengthen relational responding.

Incidental Cue Utilization as a Function of its Incentive-Produced Validity under Two Levels of Water Deprivation

1980 ◽  
Vol 46 (2) ◽  
pp. 527-534 ◽  
Author(s):  
Jerome S. Cohen ◽  
Brian Burtt ◽  
Robert Gates
Keyword(s):  
Water Deprivation ◽  
Focus Of Attention ◽  
Drive Level ◽  
Cue Utilization ◽  
Attention Model ◽  
Incentive Value ◽  
Better Than

Moderately (18 hr.) water-deprived rats were able to utilize an incidental cue of floor-texture following learning of brightness of a goal door better than highly water-deprived (23.5 hr.) animals only when water and sucrose liquids were paired with attributes of the new cue. These findings along with results from three subsidiary experiments indicate that drive level influences utilization of incidental cues by determining the differential incentive value of rewards predicted by attributes of those cues. This formulation is contrary to the drive level-focus of attention model of Tolman (1948) and Easter-brook (1959).

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