Insulation for daydreams: a role for tonic norepinephrine in the facilitation of internally guided thought
Although consciousness can be brought to bear on both perceptual and internally generated information, little is known about how these different cognitive modes are coordinated. Here we show that between-participant variance in thoughts unrelated to the task being performed (known as task unrelated...
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| Veröffentlicht in: | PloS one 2012-04, Vol.7 (4), p.e33706-e33706 |
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| creator | Smallwood, Jonathan Brown, Kevin S Baird, Benjamin Mrazek, Michael D Franklin, Michael S Schooler, Jonathan W |
| description | Although consciousness can be brought to bear on both perceptual and internally generated information, little is known about how these different cognitive modes are coordinated. Here we show that between-participant variance in thoughts unrelated to the task being performed (known as task unrelated thought, TUT) is associated with longer response times (RT) when target presentation occurs during periods when baseline Pupil Diameter (PD) is increased. As behavioral interference due to high baseline PD can reflect increased tonic activity in the norepinephrine system (NE), these results might implicate high tonic NE activity in the facilitation of TUTs. Based on these findings, it is hypothesised that high tonic mode NE leads to a generalised de-amplification of task relevant information that prioritses internally generated thought and insulates it from the potentially disruptive events taking place in the external environment. |
| doi_str_mv | 10.1371/journal.pone.0033706 |
| format | Article |
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This is an open-access article distributed under the terms of the Creative Commons Attribution License: https://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 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| subjects | Adolescent Attention - physiology Biology Catecholamines Cognition & reasoning Cognition - physiology Cognitive ability Consciousness Consciousness - physiology Experimental psychology Fantasy Humans Insulation Male Memory Neurosciences Norepinephrine Norepinephrine - physiology Objectives Reaction Time - physiology Social and Behavioral Sciences Task Performance and Analysis Thinking - physiology Young Adult |
| title | Insulation for daydreams: a role for tonic norepinephrine in the facilitation of internally guided thought |
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