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Studies of recall and storage in shortterm memory.

Howe, Michael J. A (1966) Studies of recall and storage in shortterm memory. PhD thesis, University of Sheffield.

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Experiments were designed to measure the effects upon short-term retention of verbal material of certain variables relating to (i) serial organization and (ii) the activity of recalling. In Section 1, some effects of sequential redundancy upon shortterm verbal memory are described. It is shown that retention is positively related to the similarity in structure of the material to language. A series of experiments was carried out, using sequences of both word and letter units, in order to provide information about the stage or stages within a memory task at which sequential redundancy is directly influential. It has been suggested that sequential organization has its main influence at the time of recall. The present results indicate that this is incorrect, and show that memory is already affected by redundancy in a sequence at a stage prior to the recall of verbal items. Section 2 is concerned more directly with effects of the activity of recalling verbal material. An experiment is described which shows that accuracy of reproduction may be related to order of recall, the first items to be recalled in a short-term memory task being more accurately reproduced, on the whole, than those recalled later. Consolidation in the storage of items is found to be related to the order of presentation. Some experiments are described which aimed to explain these results, and it is concluded that both rehearsal and storage time contribute to consolidation in short-term memory. The result of a further experiment confirms the observation that verbal items B.re sometimes most accurately reproduced when recalled in an order different from that in which they were presented.

Item Type: Thesis (PhD)
Academic Units: The University of Sheffield > Faculty of Science (Sheffield) > Psychology (Sheffield)
Identification Number/EthosID: uk.bl.ethos.693068
Depositing User: EThOS Import Sheffield
Date Deposited: 06 Jan 2017 10:15
Last Modified: 06 Jan 2017 10:15
URI: http://etheses.whiterose.ac.uk/id/eprint/15181

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