scholarly journals 10 Hz rTMS over right parietal cortex alters sense of agency during self-controlled movements

2014 ◽  
Vol 8 ◽  
Author(s):  
Anina Ritterband-Rosenbaum ◽  
Anke N. Karabanov ◽  
Mark S. Christensen ◽  
Jens Bo Nielsen
Keyword(s):  
Parietal Cortex ◽  
Sense Of Agency

scholarly journals TMS stimulation over the inferior parietal cortex disrupts prospective sense of agency

2014 ◽  
Vol 220 (6) ◽  
pp. 3627-3639 ◽  
Author(s):  
Valérian Chambon ◽  
James W. Moore ◽  
Patrick Haggard
Keyword(s):  
Parietal Cortex ◽  
Sense Of Agency ◽  
Inferior Parietal Cortex

Musical Anhedonia

2020 ◽  
Vol 31 (2) ◽  
pp. 62-68
Author(s):  
Sara E. Holm ◽  
Alexander Schmidt ◽  
Christoph J. Ploner
Keyword(s):  
Quality Of Life ◽  
Nucleus Accumbens ◽  
Brain Damage ◽  
Parietal Cortex ◽  
Neurological Disorders ◽  
Brain Regions ◽  
Precise Information ◽  
Exact Localization ◽  
High Prevalence

Abstract. Some people, although they are perfectly healthy and happy, cannot enjoy music. These individuals have musical anhedonia, a condition which can be congenital or may occur after focal brain damage. To date, only a few cases of acquired musical anhedonia have been reported in the literature with lesions of the temporo-parietal cortex being particularly important. Even less literature exists on congenital musical anhedonia, in which impaired connectivity of temporal brain regions with the Nucleus accumbens is implicated. Nonetheless, there is no precise information on the prevalence, causes or exact localization of both congenital and acquired musical anhedonia. However, the frequent involvement of temporo-parietal brain regions in neurological disorders such as stroke suggest the possibility of a high prevalence of this disorder, which leads to a considerable reduction in the quality of life.

Posterior parietal cortex mediates encoding processes in change blindness

2009 ◽  
Author(s):  
Philip Tseng ◽  
Cassidy Sterling ◽  
Adam Cooper ◽  
Bruce Bridgeman ◽  
Neil G. Muggleton ◽  
...  
Keyword(s):  
Parietal Cortex ◽  
Posterior Parietal Cortex ◽  
Change Blindness ◽  
Posterior Parietal

Agency and Insanity

2018 ◽  
Author(s):  
Stephen P. Garvey
Keyword(s):  
Agency Theory ◽  
Mental Disease ◽  
Sense Of Agency ◽  
Traditional Theory ◽  
Alien Hand Syndrome ◽  
Mind And Body ◽  
Alien Hand ◽  
Title Character

66 Buffalo Law Review 123 (2018)This Article offers an unorthodox theory of insanity. According to the traditional theory, insanity is a cognitive or volitional incapacity arising from a mental disease or defect. As an alternative to the traditional theory, some commentators have proposed that insanity is an especially debilitating form of irrationality. Each of these theories faces fair-minded objections. In contrast to these theories, this Article proposes that a person is insane if and because he lacks a sense of agency. The theory of insanity it defends might therefore be called the lost-agency theory.According to the lost-agency theory, a person lacks a sense of agency when he experiences his mind and body moving but doesn’t experience himself as the author or agent of those movements. The title character in the movie Dr. Strangelove suffered from what’s known as alien hand syndrome. People suffering from this syndrome experience the moving hand as their hand but don’t experience themselves as the author or agent of its movements. The lost-agency theory portrays insanity as alien hand syndrome writ large. The insane actor is like someone possessed by an alien self. He’s not in charge of his mind or body when he commits the crime.

The Grasp Cell Hypothesis: Near-miss effect points to common neurological machinery in posterior parietal cortex for controllable objects and concepts

2018 ◽  
Author(s):  
Imogen M Kruse
Keyword(s):  
Parietal Cortex ◽  
Posterior Parietal Cortex ◽  
Near Miss ◽  
Illusion Of Control ◽  
Gambling Behaviour ◽  
Drug Seeking ◽  
Spatial Influence ◽  
Reward Probability ◽  
Posterior Parietal ◽  
Action Value

The near-miss effect in gambling behaviour occurs when an outcome which is close to a win outcome invigorates gambling behaviour notwithstanding lack of associated reward. In this paper I postulate that the processing of concepts which are deemed controllable is rooted in neurological machinery located in the posterior parietal cortex specialised for the processing of objects which are immediately actionable or controllable because they are within reach. I theorise that the use of a common machinery facilitates spatial influence on the perception of concepts such that the win outcome which is 'almost complete' is perceived as being 'almost within reach'. The perceived realisability of the win increases subjective reward probability and the associated expected action value which impacts decision-making and behaviour. This novel hypothesis is the first to offer a neurological model which can comprehensively explain many empirical findings associated with the near-miss effect as well as other gambling phenomena such as the ‘illusion of control’. Furthermore, when extended to other compulsive behaviours such as drug addiction, the model can offer an explanation for continued drug-seeking following devaluation and for the increase in cravings in response to perceived opportunity to self-administer, neither of which can be explained by simple reinforcement models alone. This paper therefore provides an innovative and unifying perspective for the study and treatment of behavioural and substance addictions.

Measuring Agency Change Across the Domain of Hypnosis

2019 ◽  
Author(s):  
Vince Polito ◽  
Amanda Barnier ◽  
Erik Woody
Keyword(s):  
Rating Scale ◽  
Sense Of Agency ◽  
Pass Rates ◽  
Current Experiment ◽  
Multidimensional Construct ◽  
Time Points ◽  
Hypnotic Induction ◽  
Different Types ◽  
Over Time ◽  
Postexperimental Inquiry

Building on Hilgard’s (1965) classic work, the domain of hypnosis has been conceptualised by Barnier, Dienes, and Mitchell (2008) as comprising three levels: (1) classic hypnotic items, (2) responding between and within items, and (3) state and trait. The current experiment investigates sense of agency across each of these three levels. Forty-six high hypnotisable participants completed an ideomotor (arm levitation), a challenge (arm rigidity) and a cognitive (anosmia) item either following a hypnotic induction (hypnosis condition) or without a hypnotic induction (wake condition). In a postexperimental inquiry, participants rated their feelings of control at three time points for each item: during the suggestion, test and cancellation phases. They also completed the Sense of Agency Rating Scale (Polito, Barnier, & Woody, 2013) for each item. Pass rates, control ratings, and agency scores fluctuated across the different types of items and for the three phases of each item; also, control ratings and agency scores often differed across participants who passed versus failed each item. Interestingly, whereas a hypnotic induction influenced the likelihood of passing items, it had no direct effect on agentive experiences. These results suggest that altered sense of agency is not a unidimensional or static quality “switched on” by hypnotic induction, but a dynamic multidimensional construct that varies across items, over time and according to whether individuals pass or fail suggestions.

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