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The role of sleep in creative task performance
Includes abstract.
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Department of Psychology
2014
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| _version_ | 1867613215820611585 |
|---|---|
| access_status_str | Open Access |
| author | Hodge, Anthony |
| author2 | Thomas, Kevin |
| author_browse | Hodge, Anthony Thomas, Kevin |
| author_facet | Thomas, Kevin Hodge, Anthony |
| author_sort | Hodge, Anthony |
| collection | Thesis |
| description | Includes abstract. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/8265 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:32:36.207Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | Department of Psychology |
| publisherStr | Department of Psychology |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/8265 The role of sleep in creative task performance Hodge, Anthony Thomas, Kevin Psychological Research Includes abstract. Includes bibliographical references (leaves 84-91). Anecdotal evidence suggests that sleep can aid in creative performance, but few studies have systematically investigated this association. Prior research suggests that creative thinking, particularly divergent cognition, is similar to mental states found in sleep and dreaming, especially during REM sleep. Studies have found that sleep benefits general learning and problem-solving, and facilitates insight that promotes enhanced performance on cognitive tasks. This study investigated the effects of sleep on performance with verbal and visual tasks that explicitly require creative ability. I hypothesised that participants with a period of sleep between task preparation and execution would perform better than participants with an equal period of REM-deprived sleep, daytime wakefulness, or no interval between preparation and execution, but there would be no difference in performance between the participants in terms of convergent cognition. The study was a 4-level, single-factor design, with state of consciousness as the manipulated variable. Participants (n = 87) were recruited from the university undergraduate population. Participants memorised a wordlist for task preparation and then, after an interval of either normal sleep, REM-deprived sleep, waking activity, or no interval, used the same wordlist to write a creative short story for task execution. The stories were assessed for creativity-related constructs by the researcher and independent raters. Participants also completed a visual design fluency task at both stages of the study, following a 4-level, single-factor, repeated-measures design. Participants' scores on the Torrance Test of Creative Thinking (TTCT) Verbal Edition and the Shipley Institute of Living Scale (SILS) were used to control for general creative ability and IQ respectively. ANCOVA, repeated measures ANOVA, and Fisher's r to z transformation statistics were used to analyse the data. Although generally the hypotheses were not directly supported by the data obtained, trends suggest that there was a connection between sleep and creativity, especially an apparent interaction between baseline creativity and the type of interval. Based on the indirect evidence obtained, directions for future research for investigating sleep and creativity are discussed. 2014-10-08T09:43:59Z 2014-10-08T09:43:59Z 2009 Master Thesis Masters MA http://hdl.handle.net/11427/8265 eng application/pdf Department of Psychology Faculty of Humanities University of Cape Town |
| spellingShingle | Psychological Research Hodge, Anthony The role of sleep in creative task performance |
| thesis_degree_str | Master's |
| title | The role of sleep in creative task performance |
| title_full | The role of sleep in creative task performance |
| title_fullStr | The role of sleep in creative task performance |
| title_full_unstemmed | The role of sleep in creative task performance |
| title_short | The role of sleep in creative task performance |
| title_sort | role of sleep in creative task performance |
| topic | Psychological Research |
| url | http://hdl.handle.net/11427/8265 |
| work_keys_str_mv | AT hodgeanthony theroleofsleepincreativetaskperformance AT hodgeanthony roleofsleepincreativetaskperformance |