Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.510708
Title: Reference memory in human scaler timing
Author: Filippopoulos, Pavlos
Awarding Body: Keele University
Current Institution: Keele University
Date of Award: 2009
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Abstract:
This thesis explored the role of reference memory in human scalar timing. Chapters 3 and 4 examined if there is a distinction between reference memory and working memory. Using a combination of normal temporal generalization and pseudoepisodic temporal generalization conditions, the same physical durations (comparisons and standards) were asked to be compared by participants and judge for their equality (Chapter 3). Even though conditions consisted of the same comparison and standard durations participants showed difference in behaviour between the two tasks: that is it appeared that in normal temporal generalization they appeared to be more conservative in responding YES to whether a comparison was the same as a standard. Computer modelling supported these findings (Chapter 4). Chapter 5 examined a simple possible interference task. Participants were asked to provide judgements in a test block after being exposed to interfered blocks towards different standard durations (short, long or same interference) with the use of shorter or longer standards and comparisons. An interference effect was discovered and supported by computer modelling that raised logical questions towards the stability of reference memory, not only through interference from different standards but from comparison durations as well. The instability of reference memory due to bias manipulation was examined in Chapters 6 and 7. PartiCipants were biased by the use of shorter or longer comparisons (bias sequences) in order to misjudge the standard as being shorter or longer in a test sequence after they have completed a short or long bias sequence. Chapter 6 also explored the biasing effect with the use of post-response feedback. The effect was also supported by computer modelling in Chapter 7. The thesis overall suggested a clear distinction between reference and working memory and provided evidence supporting the instability of reference memory through interference (standard manipulation) and bias (comparison manipulation).
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.510708  DOI: Not available
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