Apr 27, 2020

Cognitive Processing dissociation and Mental Effort manipulation in long demanding tasks

BioRxiv : the Preprint Server for Biology
Marcus Vinicius AlvesO. Bueno

Abstract

Individuals uses cognitive resources to modulate performance in demanding tasks and a non-invasive and reliable way of measuring mental effort is pupillometry. This study aimed to test the mental effort related to different processing systems in long tasks with controlled and automatic demands. We conducted two experiments with healthy subjects: in Experiment 1 (n=15), using a metronome to ensure control on task pace, participants performed a serial number generation task (Counting; little to no effort tasks), a random number generation (RNG; effortful tasks), and no task (Unfilled interval; no effort at all). In experiment 2, (n=15) participants performed counting tasks with or without additional intermediary beeps produced by a metronome to assess the effect of a possible increase in effort demanded by the distractors. Experiment 1 showed differences between unfilled interval, counting and RNG. Experiment 2 showed that the intermediate beep made the counting tasks more demanding than the normal counting tasks. Notable in both experiments was the tendency of participants to demand mental effort at the beginning of the trial. These results indicate that previously effortless automatic tasks can become controlled, or at least mo...Continue Reading

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Mentioned in this Paper

Biological Markers
Gene Polymorphism
Study
Research
Digitalization Done
Genome
Genes
Human Volunteers
Three-dimensional
5p13.2

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