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Title: Repetition or targets and distractors in visual search : Behaviour and neurophysiology
Author: McBride, Jennifer Ann
ISNI:       0000 0004 2672 9342
Awarding Body: University of Bristol
Current Institution: University of Bristol
Date of Award: 2008
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Repetition of target properties across consecutive visual search trials affects response time: a phenomenon known as "repetition priming" in visual search. Ten visual search experiments are reported which were designed to better characterise the mechanism(s) producing this phenomenon. After replication of the effects reported in the literature with a new paradigm (Experiment 1), two further experiments (Experiments 2 and 3) were designed to identify the optimum paradigm with which to study these effects further, and revealed that repetition priming occurs only under particular circumstances. This conclusion was extended by Experiments 4-6, which showed that repetition priming effects depend on the exact stimuli and task used. These findings challenge the suggestion in the literature that repetition priming in visual search is driven by an automatic bottom-up process, and instead suggest that it is rather more flexible, and depends on the exact stimulus characteristics and task requirements.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available