Folkertsma, Tessa (2021) Aphantasia - neuronal mechanisms of visual imagery vividness (VIV) and its effect on mental (dys)function. Master's Thesis / Essay, Biomedical Sciences.
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Abstract
Visual imagery, the conscious experience of visual information in the absence of a direct external stimulus, plays for most individuals a prominent role in their everyday life experience, as it is a major component in memory, daydreaming, and creativity. Visual imagery can vary a lot in vividness, from a complete absence (aphantasia) to photorealistic imagery (hyperphantasia). This review will discuss the neuronal mechanisms behind visual imagery vividness (VIV) and how varying degrees of VIV affect mental functioning. Research has shown that VIV involves a complicated network of brain areas including the posterior cingulate cortex, the medial temporal lobes, and the occipitotemporal junction. It is hypothesised that voluntary imagery is based on combinations of information retrieved from stored memory and is similar to the top-down connectivity of perception. Both vivid visual imagery and its complete absence have disadvantages and are linked to various mental disorders.
| Item Type: | Thesis (Master's Thesis / Essay) |
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| Supervisor name: | Havekes, R. |
| Degree programme: | Biomedical Sciences |
| Thesis type: | Master's Thesis / Essay |
| Language: | English |
| Date Deposited: | 07 Dec 2021 12:51 |
| Last Modified: | 07 Dec 2021 12:51 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/26347 |
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