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- Title
The effect of temporal, spatial and semantic properties of visual stimuli on the working memory.
- Authors
Güler, Eda Buse; Gevrekci, Aslıhan Örs
- Abstract
Objective: The study aims to understand how processing different visual stimuli affect visual attention and working memory performance, based on their properties such as duration, location in the visual field (VF) and the semantic content. Methods: The subjects (age mean±STD=20.30±2.29) were exposed to different words both threat inducing and neutral. Threat words and their neutral counterparts with similar length and letters were nominated as the strongest by a group of 300 participants of different gender and age. The words were integrated in a computer based attention task, and presented from different VF with an exposure time of 1s or 1ms. At the end of the task, the subjects were asked to report the words. The results were analysed in SPSS. Results: The results showed that threat words were better remembered compared to their neutral counterparts (p<.001) in different visual fields except when presented at the lower VF and for 1 ms (p<.609). Threat words lowered the reaction time significantly more in the attention task in 1s exposure compared to 1ms, irrespective of their VF (p<.007). Spatial comparisons showed that if the threat words were presented from the upper VF, the effect on reaction time is significantly bigger and the number of threat words remembered was higher (memory score: p<.009; attentional performance: p<.044). Conclusion: Our results indicate that different visual fields have different temporal and semantic sensitivity. Also for the semantic property to induce a difference in attention and memory, a certain presentation time is required, which indicates the minimal critical time for the perception of threat.
- Subjects
VISUAL perception; SHORT-term memory; NEUTRAL proteinases
- Publication
Anatomy: International Journal of Experimental & Clinical Anatomy, 2018, Vol 12, Issue Supp1, pS65
- ISSN
1307-8798
- Publication type
Abstract