Unit:
Specialty Cognitive NeuroscienceLibrary of the School of Health Sciences
Author:
Petropoulos Emmanouil-Konstantinos
Supervisors info:
Νικόλαος Σμυρνής, Καθηγητής, Ιατρική Σχολή, ΕΚΠΑ
Ιωάννης Ζαλώνης, Αν. Καθηγητής, Ιατρική Σχολή, ΕΚΠΑ
Κωνσταντίνος Πόταγας, Καθηγητής, Ιατρική Σχολή, ΕΚΠΑ
Original Title:
The effects of emotion and gaze in subjective shortening
Translated title:
The effects of emotion and gaze in subjective shortening
Summary:
Two experiments investigated the phenomenon of subjective shortening (a decrease in the subjective duration of a stimulus, as its retention interval increases), with the objective to determine whether emotional visual stimuli (Experiment 1) and direct gaze (Experiment 2) can resist temporal decay as time elongates. In Experiment 1, participants compared the duration of a sample stimulus - which was either an emotional face (angry or happy) or a neutral face - with a comparison stimulus (neutral face). A random delay interval (1, 5, 10 s) was introduced between the presentation of the sample and comparison stimuli. Experiment 2 employed the same procedure. Participants were presented with either a direct gaze face, an averted gaze face, or a face with closed eyes (sample). After each delay interval, a face with closed eyes was shown (comparison). Results provided additional insight in addition to that provided by Wearden and Ferrara's seminal study on subjective shortening, utilizing auditory, neutral stimuli. Our findings demonstrated that the type of emotion or gaze did not significantly withstand time shortening in a unique manner. This suggests that subjective shortening tends to be evident in the presence of both visual and auditory stimuli, irrespective of any additional cognitive and perceptual components which place additional load on the time duration tasks. Our study also raises prospective considerations about a potential correlation between the identification and retention of facial features in working memory and visual stimuli in general, and the evaluation of their duration.
Main subject category:
Health Sciences
Keywords:
Time, Time perception, Subjective shortening, Emotion, Gaze, Human faces, Delay, Working memory
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Thesis Petropoulos Konstantinos.pdf
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