Boosts in brain signal variability track liberal shifts in decision bias
| العنوان: | Boosts in brain signal variability track liberal shifts in decision bias |
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| المؤلفون: | Johannes J. Fahrenfort, Niels A. Kloosterman, Julian Q. Kosciessa, Ulman Lindenberger, Douglas D. Garrett |
| المساهمون: | Brein en Cognitie (Psychologie, FMG), Cognitive Psychology, IBBA |
| المصدر: | eLife eLife, 9:e54201. eLife Sciences Publications eLife, Vol 9 (2020) eLife, 9:e54201, 1-22. eLife Sciences Publications Kloosterman, N A, Kosciessa, J Q, Lindenberger, U, Fahrenfort, J J & Garrett, D D 2020, ' Boosts in brain signal variability track liberal shifts in decision bias ', eLife, vol. 9, e54201, pp. 1-22 . https://doi.org/10.7554/eLife.54201 |
| بيانات النشر: | eLife Sciences Publications, Ltd, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Male, 0301 basic medicine, Computer science, Electroencephalography, neuroscience, 0302 clinical medicine, Biology (General), Prefrontal cortex, signal detection theory, medicine.diagnostic_test, General Neuroscience, Cognitive flexibility, Brain, General Medicine, Decision bias, Justice and Strong Institutions, Auditory Perception, Signal variability, Medicine, Female, perceptual decision making, Human, Cognitive psychology, Adult, SDG 16 - Peace, QH301-705.5, Science, Decision Making, Sensory system, cognitive flexibility, General Biochemistry, Genetics and Molecular Biology, Young Adult, 03 medical and health sciences, medicine, Humans, Entropy (information theory), Detection theory, human, General Immunology and Microbiology, SDG 16 - Peace, Justice and Strong Institutions, brain signal variability, decision bias, 030104 developmental biology, Acoustic Stimulation, Research Advance, 030217 neurology & neurosurgery, Neuroscience |
| الوصف: | Adopting particular decision biases allows organisms to tailor their choices to environmental demands. For example, a liberal response strategy pays off when target detection is crucial, whereas a conservative strategy is optimal for avoiding false alarms. Using conventional time-frequency analysis of human electroencephalographic (EEG) activity, we previously showed that bias setting entails adjustment of evidence accumulation in sensory regions (Kloosterman et al., 2019), but the presumed prefrontal signature of a conservative-to-liberal bias shift has remained elusive. Here, we show that a liberal bias shift is reflected in a more unconstrained neural regime (boosted entropy) in frontal regions that is suited to the detection of unpredictable events. Overall EEG variation, spectral power and event-related potentials could not explain this relationship, highlighting that moment-to-moment neural variability uniquely tracks bias shifts. Neural variability modulation through prefrontal cortex appears instrumental for permitting an organism to adapt its biases to environmental demands. |
| وصف الملف: | application/pdf |
| تدمد: | 2050-084X |
| DOI: | 10.7554/elife.54201 |
| DOI: | 10.7554/eLife.54201 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13fe97d84eb5e21a9e080080dcbe2a83 https://doi.org/10.7554/elife.54201 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....13fe97d84eb5e21a9e080080dcbe2a83 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 2050084X |
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| DOI: | 10.7554/elife.54201 |