scholarly journals Structured event complexes in the medial prefrontal cortex support counterfactual representations for future planning

2009 ◽  
Vol 364 (1521) ◽  
pp. 1291-1300 ◽  
Author(s):  
Aron K. Barbey ◽  
Frank Krueger ◽  
Jordan Grafman

We propose that counterfactual representations for reasoning about the past or predicting the future depend on structured event complexes (SECs) in the human prefrontal cortex (PFC; ‘What would happen if X were performed in the past or enacted in the future?’). We identify three major categories of counterfactual thought (concerning action versus inaction, the self versus other and upward versus downward thinking) and propose that each form of inference recruits SEC representations in distinct regions of the medial PFC. We develop a process model of the regulatory functions these representations serve and draw conclusions about the importance of SECs for explaining the past and predicting the future.

2016 ◽  
Vol 37 (7) ◽  
pp. 2512-2527 ◽  
Author(s):  
Weihua Zhao ◽  
Shuxia Yao ◽  
Qin Li ◽  
Yayuan Geng ◽  
Xiaole Ma ◽  
...  

2014 ◽  
Vol 26 (4) ◽  
pp. 683-698 ◽  
Author(s):  
Charlotte E. Hartwright ◽  
Ian A. Apperly ◽  
Peter C. Hansen

The medial pFC (mPFC) is frequently reported to play a central role in Theory of Mind (ToM). However, the contribution of this large cortical region in ToM is not well understood. Combining a novel behavioral task with fMRI, we sought to demonstrate functional divisions between dorsal and rostral mPFC. All conditions of the task required the representation of mental states (beliefs and desires). The level of demands on cognitive control (high vs. low) and the nature of the demands on reasoning (deductive vs. abductive) were varied orthogonally between conditions. Activation in dorsal mPFC was modulated by the need for control, whereas rostral mPFC was modulated by reasoning demands. These findings fit with previously suggested domain-general functions for different parts of mPFC and suggest that these functions are recruited selectively in the service of ToM.


2021 ◽  
pp. 372-419
Author(s):  
Richard E. Passingham

This chapter and the next one consider how to account for the astonishing difference in intelligence between humans and our nearest living ancestors, the great apes. An integrated system that includes the dorsal prefrontal cortex and the parietal association cortex is activated when subjects attempt tests of non-verbal intelligence. It has been suggested that this system might act as a ‘multiple-demand system’ or ‘global workspace’ that can deal with any problem. However, closer examination suggests that the tasks used to support this claim have in common that they involve abstract sequences. These problems can be solved by visual imagery alone. But humans also have the advantage that they also have access to a propositional code. This means that they can solve problems that involve verbal reasoning, as well as being able to form detailed plans for the future. They can also form explicit judgements about themselves, including their perceptions, actions, and memories, and this means that they can represent themselves as individuals. The representation of the self depends in part on tissue in the medial prefrontal cortex (PF).


2014 ◽  
Vol 10 (8) ◽  
pp. 1054-1060 ◽  
Author(s):  
Claudia Civai ◽  
Carlo Miniussi ◽  
Raffaella I. Rumiati

2014 ◽  
Vol 40 (3) ◽  
pp. 546-553 ◽  
Author(s):  
Sang Soo Cho ◽  
Yuko Koshimori ◽  
Kelly Aminian ◽  
Ignacio Obeso ◽  
Pablo Rusjan ◽  
...  

2021 ◽  
Vol 12 ◽  
Author(s):  
Elias Garcia-Pelegrin ◽  
Clive Wilkins ◽  
Nicola S. Clayton

Engaging in the art of creating and telling stories is a defining behaviour of humankind. Humans have been sharing stories with each other, with and without words, since the dawn of recorded history, but the cognitive foundations of the behaviour can be traced deeper into our past. The emergence of stories can be strongly linked to Mental Time Travel (the ability to recall the past and imagine the future) and plays a key role in our ability to communicate past, present and future scenarios with other individuals, within and beyond our lifetimes. Stories are products engraved within the concept of time, constructed to elucidate the past experiences of the self, but designed with the future in mind, thus imparting lessons of such experiences to the receiver. By being privy to the experiences of others, humans can imagine themselves in a similar position to the protagonist of the story, thus mentally learning from an experience they might have never encountered other than in the mind's eye. Evolutionary Psychology investigates how the engagement in artistic endeavours by our ancestors in the Pleistocene granted them an advantage when confronted with obstacles that challenged their survival or reproductive fitness and questions whether art is an adaptation of the human mind or a spandrel of other cognitive adaptations. However, little attention has been placed on the cognitive abilities that might have been imperative for the development of art. Here, we examine the relationship between art, storytelling, Mental Time Travel and Theory of Mind (i.e., the ability to attribute mental states to others). We suggest that Mental Time Travel played a key role in the development of storytelling because through stories, humans can fundamentally transcend their present condition, by being able to imagine different times, separate realities, and place themselves and others anywhere within the time space continuum. We argue that the development of a Theory of Mind also sparked storytelling practises in humans as a method of diffusing the past experiences of the self to others whilst enabling the receiver to dissociate between the past experiences of others and their own, and to understand them as lessons for a possible future. We propose that when artistic products rely on storytelling in form and function, they ought to be considered separate from other forms of art whose appreciation capitalise on our aesthetic preferences.


2021 ◽  
Vol 16 (2) ◽  
Author(s):  
Jonathan Wood

Greenland is a sub-national jurisdiction of the Kingdom of Denmark, yet holds a special position within due to the Self-Rule Act of 2009. For decades, Greenlandic politicians have clamored for independence in various ways. This article explores through an International Relations Theory lens as to the schools and modes of IR that Greenland has used in the past in order to predict how an independent Greenland may act in the future. By exploring these theories, the paper shines light on which theories and strategies may be best for Greenlanders.


2020 ◽  
Vol 10 (8) ◽  
pp. 535
Author(s):  
Birgitta Taylor-Lillquist ◽  
Vivek Kanpa ◽  
Maya Crawford ◽  
Mehdi El Filali ◽  
Julia Oakes ◽  
...  

Humans employ a number of strategies to improve their position in their given social hierarchy. Overclaiming involves presenting oneself as having more knowledge than one actually possesses, and it is typically invoked to increase one’s social standing. If increased expectations to possess knowledge is a perceived social pressure, such expectations should increase bouts of overclaiming. As the medial prefrontal cortex (MPFC) is sensitive to social pressure and disruption of the MPFC leads to decreases in overclaiming, we predicted that transcranial magnetic stimulation (TMS) applied to the MPFC would reduce overclaiming and the effects would be enhanced in the presence of social pressure. Twelve participants were given a test in which half of the words were real and half were fake, and they were asked how well they knew each word. They were not told that any of the words were fake. Half of the participants were exposed to social pressure while the other half were not. Following TMS delivered to the MPFC, overclaiming rates decreased, specifically under conditions of high social pressure. Medial PFC TMS did not influence real word responses and real words did not interact with the MPFC and social pressure. These preliminary findings support the significant role the MPFC plays in social cognition and the importance of the MPFC in mediating socially meaningful situations. We suggest the role of the MPFC as being highly influenced by the premium placed on social manipulation in human evolution.


2019 ◽  
Vol 22 (10) ◽  
pp. 675-679 ◽  
Author(s):  
Jiancheng Zhang ◽  
Youge Qu ◽  
Lijia Chang ◽  
Yaoyu Pu ◽  
Kenji Hashimoto

Abstract Background A recent study demonstrated that spine formation rates by ketamine in the prefrontal cortex (PFC) were not altered at 3–6 h following a single injection, but were markedly altered at 12–24 h. Here, we investigated the acute (3 h post-treatment) effects of (R)-ketamine in the decreased spine density in the medial PFC (mPFC) and hippocampus in susceptible mice after chronic social defeat stress (CSDS). Methods (R)-ketamine (10 mg/kg) or saline was administered intraperitoneally to CSDS-susceptible mice. Dendritic spine density in the mPFC and hippocampus was measured 3 h after a single injection. Results (R)-ketamine significantly ameliorated the decreased spine density in the prelimbic area of mPFC, Cornu Ammonis3, and dentate gyrus of the hippocampus of CSDS-susceptible mice Conclusions This study suggests that (R)-ketamine rapidly ameliorates the decreased spine density in the mPFC and hippocampus of CSDS-susceptible mice, resulting in its rapid-acting antidepressant effects.


Author(s):  
Vlad Strukov

Balabanov’s Morphine is concerned with cultural memory conceived as a continuum; not as identity but rather subjectivity in construction. The concepts relates to Badiou’s study of subjectivity. It determines existence in a world where the horizon of knowledge is always disappearing and is never available to us in its integrity whereby the subject is barred from the infinite. Different directions and speeds of movement generate the transcendental subject in that the subject is in relation to the variations of the lived. One of such states implies a continuum, or becoming without determination, whilst the other, refers to the imperative to construct knowledge out of the elements of the continuum. Such assemblages, rituals and rites allow the subject to access the ‘beyond’, a different realm, where the elements of the past are positioned towards the future. The transcendence of the subject is coded as an unstoppable flow of imagery—a hallucination—divided into sequences by reiterations and references to the cultural discourse: an introspective vision produces not self-organisation but self-destruction as the subject becomes aware of its own infiniteness. I showcase how Balabanov’s Morphine captures the brutality of such openings and the self-annihilating impact of nothingness.


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