The role of stimulus predictability in the allocation of attentional resources: an eye-tracking study

Magdalena Król , Magdalena Kilan-Banach , Renata Strzelecka

Abstract

By allocating less attention to predictable events we are able to focus on novel, unpredictable and unexpected events that require more extensive processing. This strategy should result in improved performance by optimizing the use of brain's limited resources. Participants' task was to look at two types of stimuli presented simultaneously at the opposite sides of a computer screen: "static" stimuli, i.e. emotionally neutral photographs; and "dynamic" stimuli, i.e. video clips presenting a moving dot. The dot moved along a predictable, semi-predictable or random trajectory. This was followed by a memory test of the static stimuli. Participants spent more time looking at the dynamic stimuli when its trajectory was less predictable. Additionally, participants who readily adjusted their dwell time allocation to the dot trajectory performed better in the memory test, as demonstrated by a positive correlation between memory test sensitivity and the rate of eye movement patterns adjustment to stimulus predictability. This suggests that people adjust gaze duration to stimulus predictability and that doing so optimizes attentional resource allocation and improves performance. However, study design did not allow to distinguish between spatial and temporal predictability, so it is impossible to estimate the impact of each type of predictability specifically.
Author Magdalena Król (Wydział Zamiejscowy we Wrocławiu)
Magdalena Król,,
- Wydział Zamiejscowy we Wrocławiu
, Magdalena Kilan-Banach
Magdalena Kilan-Banach,,
-
, Renata Strzelecka
Renata Strzelecka,,
-
Journal seriesCognitive Processing, ISSN 1612-4782, e-ISSN 1612-4790, (A 20 pkt)
Issue year2017
Vol18
No3
Pages335-342
Publication size in sheets0.5
Keywords in EnglishEye tracking; Prediction; Top down; Visual attention
ASJC Classification1702 Artificial Intelligence; 2805 Cognitive Neuroscience; 3205 Experimental and Cognitive Psychology; 2700 General Medicine
DOIDOI:10.1007/s10339-017-0806-9
URL https://www.ncbi.nlm.nih.gov/pubmed/28364341
Languageen angielski
File
22. Król, Banach_Cognitive Processing opublikowane.pdf 980.34 KB
Additional file
Król_oświadczenie_cogitive processing.pdf 171.95 KB
Score (nominal)20
Score sourcejournalList
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 0.68; WoS Impact Factor: 2017 = 1.15 (2) - 2017=1.585 (5)
Citation count*1 (2020-11-22)
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