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State-Dependent Learning As A Function Of The Temporal Relationship Between Noncontingent Footshock And Electroconvulsive Shock, T. Scott Shutt
State-Dependent Learning As A Function Of The Temporal Relationship Between Noncontingent Footshock And Electroconvulsive Shock, T. Scott Shutt
All Master's Theses
Rats were given a noncontingent footshock followed at various intervals by electroconvulsive shock. Twentyfour hours later they were trained on a non-shock passive avoidance task and tested for retention 72 hours later. When the interval between NCFS and ECS was short the animals showed an amnesia which reduced as the interval was lengthened. An interval of .5 seconds produced the most pronounced amnesia and intervals greater than 10 seconds produced virtually no amnesia. The results were consistent with a state dependent retrieval failure hypothesis.
Semantic Differential Relationships As A Determinant Of Clustering, Burr R. Beckwith
Semantic Differential Relationships As A Determinant Of Clustering, Burr R. Beckwith
All Master's Theses
In the past, clustering research has focused primarily on the effect of pre-experimental associations and/or conceptual relationships on clustering in free recall. The present study marks a departure from this trend in that it was designed to determine under what conditions SD relationships among task-items would mediate clustering.
Meaningfulness And Similarity As Determinants Of Verbal Retention, Walter S. Heins
Meaningfulness And Similarity As Determinants Of Verbal Retention, Walter S. Heins
All Master's Theses
The purpose of this study was to ascertain the relationships and interaction between two factors--meaningfulness (m) and similarity (s) as these factors affect the retention and recall of high and low m consonant-vowel-consonant (CVC) trigrams.
The Effect Of Electroconvulsive Shock Following One-Trial Avoidance Learning In The Rat, Richard H. Lovely
The Effect Of Electroconvulsive Shock Following One-Trial Avoidance Learning In The Rat, Richard H. Lovely
All Master's Theses
It is hypothesized that (1) If rats are given electroconvulsive shock, following a footshock to condition an avoidance response, they will display initial retrograde amnesia and that this amnesia will diminish over time as manifested by recovery of the avoidance response; (2) This recovery is not a pure function of time but involves re-exposure to the original learning situation.