Effects of Natural Sounds on Attention Restoration in Noisy Environment

Cognitive Fatigue, Mental Fatigue, Heart Rate Variability, Skin Conductance, Behavioral Performance, Positive and Negative Affect, Inhibition, Working Memory, Perceived Restoration

This study aims to examine whether listening to natural sounds in a noisy (traffic) environment compared to traffic noise only impacts behavioural, cognitive, affective, and physiological markers associated with attention restoration. Attention restoration will be examined as an aspect of cognitive fatigue.

Based on the Attention Restoration Theory (Kaplan, 1995), we hypothesize that listening to natural sounds has restorative effects on attention by supporting greater use of involuntary attention. This generates the prediction that exposure to natural sounds in the context of a noisy environment will have greater restorative effects on attention (i.e., physiological, affect, cognition, and behaviour) as compared to the control group (exposed to noise only). Individual differences (i.e., age, gender, caffeine and food intake, body mass index, skin temperature, noise sensitivity, sleep quality, baseline physiology and behavioural performance) will be examined and accounted for. A cognitive task will be administered at the beginning of the experiment to induce fatigue to examine the restorative effects of natural sounds.

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