scholarly journals A causal role of the right inferior frontal cortex in implementing strategies for multi-component behaviour

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Gabriel Dippel ◽  
Christian Beste
Keyword(s):  
Frontal Cortex ◽  
Causal Role ◽  
Inferior Frontal Cortex ◽  
The Right ◽  
Implementing Strategies

Introduction

2018 ◽  
Author(s):  
Christopher Evan Franklin
Keyword(s):  
Moral Responsibility ◽  
Free Will ◽  
Human Agency ◽  
Causal Role ◽  
Central Question ◽  
Agent Causation ◽  
The Right

This chapter lays out the book’s central question: Assuming agency reductionism—that is, the thesis that the causal role of the agent in all agential activities is reducible to the causal role of states and events involving the agent—is it possible to construct a defensible model of libertarianism? It is explained that most think the answer is negative and this is because they think libertarians must embrace some form of agent-causation in order to address the problems of luck and enhanced control. The thesis of the book is that these philosophers are mistaken: it is possible to construct a libertarian model of free will and moral responsibility within an agency reductionist framework that silences that central objections to libertarianism by simply taking the best compatibilist model of freedom and adding indeterminism in the right junctures of human agency. A brief summary of the chapters to follow is given.

An active role of inferior frontal cortex in conscious experience

2021 ◽  
Author(s):  
Veith Weilnhammer ◽  
Merve Fritsch ◽  
Meera Chikermane ◽  
Anna-Lena Eckert ◽  
Katharina Kanthak ◽  
...  
Keyword(s):  
Frontal Cortex ◽  
Conscious Experience ◽  
Active Role ◽  
Inferior Frontal Cortex

scholarly journals Decreased event-related theta power and phase-synchrony in young binge drinkers during target detection: An anatomically-constrained MEG approach

2018 ◽  
Vol 33 (3) ◽  
pp. 335-346 ◽  
Author(s):  
A Correas ◽  
E López-Caneda ◽  
L Beaton ◽  
S Rodríguez Holguín ◽  
LM García-Moreno ◽  
...  
Keyword(s):  
Alcohol Consumption ◽  
Frontal Cortex ◽  
Binge Drinking ◽  
Target Detection ◽  
Attentional Control ◽  
Theta Power ◽  
Inferior Frontal Cortex ◽  
Binge Drinkers ◽  
The Right ◽  
Integrative Processing

Background: The prevalence of binge drinking has risen in recent years. It is associated with a range of neurocognitive deficits among adolescents and young emerging adults who are especially vulnerable to alcohol use. Attention is an essential dimension of executive functioning and attentional disturbances may be associated with hazardous drinking. The aim of the study was to examine the oscillatory neural dynamics of attentional control during visual target detection in emerging young adults as a function of binge drinking. Method: In total, 51 first-year university students (18 ± 0.6 years) were assigned to light drinking ( n = 26), and binge drinking ( n = 25) groups based on their alcohol consumption patterns. A high-density magnetoencephalography signal was combined with structural magnetic resonance imaging in an anatomically constrained magnetoencephalography model to estimate event-related source power in a theta (4–7 Hz) frequency band. Phase-locked co-oscillations were further estimated between the principally activated regions during task performance. Results: Overall, the greatest event-related theta power was elicited by targets in the right inferior frontal cortex and it correlated with performance accuracy and selective attention scores. Binge drinkers exhibited lower theta power and dysregulated oscillatory synchrony to targets in the right inferior frontal cortex, which correlated with higher levels of alcohol consumption. Conclusions: These results confirm that a highly interactive network in the right inferior frontal cortex subserves attentional control, revealing the importance of theta oscillations and neural synchrony for attentional capture and contextual maintenance. Attenuation of theta power and synchronous interactions in binge drinkers may indicate early stages of suboptimal integrative processing in young, highly functioning binge drinkers.

scholarly journals Task-Dependent Modulation of Regions in the Left Inferior Frontal Cortex during Semantic Processing

2001 ◽  
Vol 13 (6) ◽  
pp. 829-843 ◽  
Author(s):  
A. L. Roskies ◽  
J. A. Fiez ◽  
D. A. Balota ◽  
M. E. Raichle ◽  
S. E. Petersen
Keyword(s):  
Frontal Cortex ◽  
Language Processing ◽  
Semantic Processing ◽  
Semantic Analysis ◽  
Lexical Processing ◽  
Temporal Cortex ◽  
Dependent Manner ◽  
Inferior Frontal Cortex ◽  
Semantic Judgment ◽  
The Right

To distinguish areas involved in the processing of word meaning (semantics) from other regions involved in lexical processing more generally, subjects were scanned with positron emission tomography (PET) while performing lexical tasks, three of which required varying degrees of semantic analysis and one that required phonological analysis. Three closely apposed regions in the left inferior frontal cortex and one in the right cerebellum were significantly active above baseline in the semantic tasks, but not in the nonsemantic task. The activity in two of the frontal regions was modulated by the difficulty of the semantic judgment. Other regions, including some in the left temporal cortex and the cerebellum, were active across all four language tasks. Thus, in addition to a number of regions known to be active during language processing, regions in the left inferior frontal cortex were specifically recruited during semantic processing in a task-dependent manner. A region in the right cerebellum may be functionally related to those in the left inferior frontal cortex. Discussion focuses on the implications of these results for current views regarding neural substrates of semantic processing.

The role of inferior frontal cortex in belief-bias reasoning: An rTMS study

2010 ◽  
Vol 48 (7) ◽  
pp. 2005-2008 ◽  
Author(s):  
Takeo Tsujii ◽  
Sayako Masuda ◽  
Takekazu Akiyama ◽  
Shigeru Watanabe
Keyword(s):  
Frontal Cortex ◽  
Belief Bias ◽  
Inferior Frontal Cortex

Generating predictions: Lesion evidence on the role of left inferior frontal cortex in rapid syntactic analysis

Cortex ◽  
2013 ◽  
Vol 49 (10) ◽  
pp. 2861-2874 ◽  
Author(s):  
Maria Jakuszeit ◽  
Sonja A. Kotz ◽  
Anna S. Hasting
Keyword(s):  
Frontal Cortex ◽  
Syntactic Analysis ◽  
Inferior Frontal Cortex

Causal Role of the Dorsolateral Prefrontal Cortex in Belief Updating under Uncertainty

2020 ◽  
Vol 31 (1) ◽  
pp. 184-200
Author(s):  
Stefan Schulreich ◽  
Lars Schwabe
Keyword(s):  
Prefrontal Cortex ◽  
Dorsolateral Prefrontal Cortex ◽  
Causal Role ◽  
Uncertain Environments ◽  
Belief Updating ◽  
Frontoparietal Network ◽  
Dorsolateral Prefrontal ◽  
The Right ◽  
Normative Value

Abstract Adaptive performance in uncertain environments depends on the ability to continuously update internal beliefs about environmental states. Recent correlative evidence suggests that a frontoparietal network including the dorsolateral prefrontal cortex (dlPFC) supports belief updating under uncertainty, but whether the dlPFC serves a “causal” role in this process is currently not clear. To elucidate its contribution, we leveraged transcranial direct current stimulation (tDCS) over the right dlPFC, while 91 participants performed an incentivized belief-updating task. Participants also underwent a psychosocial stress or control manipulation to investigate the role of stress, which is known to modulate dlPFC functioning. We observed enhanced monetary value updating after anodal tDCS when it was normatively expected from a Bayesian perspective. A model-based analysis indicates that this effect was driven by belief updating. However, we also observed enhanced non-normative value updating, which might have been driven instead by expectancy violation. Enhanced normative and non-normative value updating reflected increased vs. decreased Bayesian rationality, respectively. Furthermore, cortisol increases were associated with enhanced positive, but not with negative, value updating. The present study thereby sheds light on the causal role of the right dlPFC in the remarkable human ability to navigate uncertain environments by continuously updating prior knowledge following new evidence.

scholarly journals Internal modeling of upcoming speech: A causal role of the right posterior cerebellum in non-motor aspects of language production

Cortex ◽  
2016 ◽  
Vol 81 ◽  
pp. 203-214 ◽  
Author(s):  
Elin Runnqvist ◽  
Mireille Bonnard ◽  
Hanna S. Gauvin ◽  
Shahram Attarian ◽  
Agnès Trébuchon ◽  
...  
Keyword(s):  
Language Production ◽  
Causal Role ◽  
The Right
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