Rapid serial blinks: An index of temporally increased cognitive load

Autoři: Ryota Nomura aff001;  Shunichi Maruno aff002
Působiště autorů: Faculty of Education and Psychology, Kagoshima Immaculate Heart University, Kagoshima, Japan aff001;  Graduate School of Human-Environment Studies, Kyushu University, Fukuoka, Japan aff002
Vyšlo v časopise: PLoS ONE 14(12)
Kategorie: Research Article
doi: https://doi.org/10.1371/journal.pone.0225897


In recent years, natural viewing settings with video presentation have been used in neurological and psychological experiments. However, the experienced cognitive load may differ among participants. In this study, we show that rapid serial blinks (RSB) can indicate temporally increased cognitive load with high temporal resolution. We proposed a method to create a personal criterion for respective participants by using empirical blink intervals. When we focused on more than four serial blinks (i.e., three inter-blink intervals), an increased number of RSB detect participants who felt hard to understanding, indicating a poor understanding of the subject matter. By contrast, a constant criterion across participants used in previous study could not detect participant’s understanding. These results suggest that individual differences in cognitive trait of each participant may skew the results of experiments. To avoid biases, we recommend researchers to perform an operational check on individually different temporally increased cognitive loads among experimental groups.

Klíčová slova:

Cognition – Cognitive neurology – Cognitive psychology – Eyelids – Eyes – Lectures – Schools – Exponential functions


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Článek vyšel v časopise


2019 Číslo 12
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