A possible role of the norepinephrine system during sequential cognitive flexibility – Evidence from EEG and pupil diameter data

Cortex ◽  
2020 ◽  
Vol 128 ◽  
pp. 22-34 ◽  
Author(s):  
Franziska Giller ◽  
Moritz Mückschel ◽  
Tjalf Ziemssen ◽  
Christian Beste
Keyword(s):  
Cognitive Flexibility ◽  
Pupil Diameter ◽  
Norepinephrine System

scholarly journals Pupil dilation predicts individual self-regulation success across domains

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Silvia U. Maier ◽  
Marcus Grueschow
Keyword(s):  
Emotion Regulation ◽  
Time Course ◽  
Pupil Diameter ◽  
Self Regulation ◽  
Self Control ◽  
Control Task ◽  
Arousal System ◽  
Norepinephrine System ◽  
Individual Self

AbstractMultiple theories have proposed that increasing central arousal through the brain’s locus coeruleus—norepinephrine system may facilitate cognitive control and memory. However, the role of the arousal system in emotion regulation is less well understood. Pupil diameter is a proxy to infer upon the central arousal state. We employed an emotion regulation paradigm with a combination of design features that allowed us to dissociate regulation from emotional arousal in the pupil diameter time course of 34 healthy adults. Pupil diameter increase during regulation predicted individual differences in emotion regulation success beyond task difficulty. Moreover, the extent of this individual regulatory arousal boost predicted performance in another self-control task, dietary health challenges. Participants who harnessed more regulation-associated arousal during emotion regulation were also more successful in choosing healthier foods. These results suggest that a common arousal-based facilitation mechanism may support an individual’s self-control across domains.

scholarly journals S46. THE ROLE OF COGNITIVE FLEXIBILITY IN STIGMA AGAINST INDIVIDUALS WITH SCHIZOPHRENIA

2019 ◽  
Vol 45 (Supplement_2) ◽  
pp. S323-S324 ◽  
Author(s):  
Rebecca De Los Santos ◽  
Colin Carey ◽  
Katelyn Challman ◽  
Veronica Perez
Keyword(s):  
Cognitive Flexibility

scholarly journals On the interrelation of 1/f neural noise and norepinephrine system activity during motor response inhibition

2019 ◽  
Vol 121 (5) ◽  
pp. 1633-1643 ◽  
Author(s):  
Maik Pertermann ◽  
Moritz Mückschel ◽  
Nico Adelhöfer ◽  
Tjalf Ziemssen ◽  
Christian Beste
Keyword(s):  
Information Processing ◽  
Cognitive Control ◽  
Inhibitory Control ◽  
Response Inhibition ◽  
Pupil Diameter ◽  
Human Information Processing ◽  
System Activity ◽  
Neural Noise ◽  
Control Processes ◽  
Norepinephrine System

Several lines of evidence suggest that there is a close interrelation between the degree of noise in neural circuits and the activity of the norepinephrine (NE) system, yet the precise nexus between these aspects is far from being understood during human information processing and cognitive control in particular. We examine this nexus during response inhibition in n = 47 healthy participants. Using high-density EEG recordings, we estimate neural noise by calculating “1/ f noise” of those data and integrate these EEG parameters with pupil diameter data as an established indirect index of NE system activity. We show that neural noise is reduced when cognitive control processes to inhibit a prepotent/automated response are exerted. These neural noise variations were confined to the theta frequency band, which has also been shown to play a central role during response inhibition and cognitive control. There were strong positive correlations between the 1 /f neural noise parameter and the pupil diameter data within the first 250 ms after the Nogo stimulus presentation at centro-parietal electrode sites. No such correlations were evident during automated responding on Go trials. Source localization analyses using standardized low-resolution brain electromagnetic tomography show that inferior parietal areas are activated in this time period in Nogo trials. The data suggest an interrelation of NE system activity and neural noise within early stages of information processing associated with inferior parietal areas when cognitive control processes are required. The data provide the first direct evidence for the nexus between NE system activity and the modulation of neural noise during inhibitory control in humans. NEW & NOTEWORTHY This is the first study showing that there is a nexus between norepinephrine system activity and the modulation of neural noise or scale-free neural activity during inhibitory control in humans. It does so by integrating pupil diameter data with analysis of EEG neural noise.

The influence of leader empowerment behaviour on employee creativity

2020 ◽  
Vol 58 (12) ◽  
pp. 2681-2703 ◽  
Author(s):  
Xuemei Liu ◽  
Zhiwei Zhu ◽  
Zheng Liu ◽  
Chunyan Fu
Keyword(s):  
Cognitive Flexibility ◽  
Construal Level Theory ◽  
Moderating Effect ◽  
Theory And Practice ◽  
Construal Level ◽  
Employee Creativity ◽  
Content Type ◽  
Mediating Role ◽  
The Relationship

PurposeThis study, based on construal level theory, aims to examine the influential mechanism of leader empowerment behaviour on employee creativity. Specifically, it examines the mediating role of cognitive flexibility between leader empowerment behaviour and employee creativity, along with the moderating effect of consideration of future consequences (CFC) on this linkage.Design/methodology/approachA two time-point survey study (n = 214) was conducted to collect information from leaders and employees in terms of mutual evaluation in several Chinese industries. To effectively avoid common source bias, this survey was conducted through pairing leaders and employees. During the survey, the supervisors and subordinates were double-blinded. Correlation analysis and hierarchical regression analysis were used to test the research hypotheses.FindingsFirstly, leader empowerment behaviour can significantly predict employee creativity. Second, cognitive flexibility plays a partial mediating role in the linkage between leader empowerment behaviour and employee creativity. Thirdly, CFC moderates the relationship between leadership empowerment behaviour and cognitive flexibility. The mediating role of cognitive flexibility underlies the overall moderating effect of CFC on the relationship between leader empowerment behaviour and employee creativity.Research limitations/implicationsWe used construal level theory to explain the influence of the mechanism of leader empowerment behaviour on employee creativity. In this manner, this study bridges the gap between theory and practice, as well as enriching the research on leader empowerment behaviour and employee creativity, especially in the Chinese context. Moreover, our study has several practical managerial implications, based on the importance of employee creativity. It inspires the implementation of leader empowerment behaviour, cultivation of employee creativity and introduction of several procedures.Originality/valueThis paper discusses the influential mechanism of leader empowerment behaviour on employee creativity from a new perspective and explains the process of encouraging employee creativity through information-processing methods. It mainly highlights the application of construal level theory to discuss employee creativity and develops a new research frame for employee creativity. Leaders can raise employee creativity through leader empowerment behaviour.

scholarly journals Mediating the Effect of Cognitive Flexibility in the Relationship between Psychological Well-Being and Self-Confidence: A Study on Turkish University Students

2019 ◽  
Vol 8 (6) ◽  
pp. 278 ◽  
Author(s):  
Asude Malkoç ◽  
Aynur Kesen Mutlu
Keyword(s):  
University Students ◽  
Cognitive Flexibility ◽  
Private University ◽  
Well Being ◽  
Psychological Well Being ◽  
Self Confidence ◽  
Turkish University Students ◽  
Faculty Of Education ◽  
The Relationship

This study examined the role of self-confidence and cognitive flexibility in psychological well-being. The study looked into whether cognitive flexibility mediates the relationship between self-confidence and psychological well-being. The study involved the participation of 284 university students (192 female and 92 male) enrolled in the Faculty of Education at a private university in Istanbul, Turkey. Data was collected via the Self- Confidence Scale, Flourishing Scale and Cognitive Flexibility Scale. The results of our multiple regression analysis revealed that self-confidence and cognitive flexibility statistically predict psychological well-being. Self-confidence and cognitive flexibility were found to explain 38% of the variance in psychological well-being. Furthermore, cognitive flexibility served as a mediator in the relationship between self-confidence and psychological well-being.

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