scholarly journals Vision, cognition, and walking stability in young adults

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Yogev Koren ◽  
Rotem Mairon ◽  
Ilay Sofer ◽  
Yisrael Parmet ◽  
Ohad Ben-Shahar ◽  
...  
Keyword(s):  
Sensory Information ◽  
Neural Circuitry ◽  
The Novel ◽  
Gaze Behavior ◽  
Cognitive Demands ◽  
Dual Tasking ◽  
Ongoing Effort ◽  
Dual Task Interference ◽  
Reactive Mechanism ◽  
Do So

AbstractDownward gazing is often observed when walking requires guidance. This gaze behavior is thought to promote walking stability through anticipatory stepping control. This study is part of an ongoing effort to investigate whether downward gazing also serves to enhance postural control, which can promote walking stability through a feedback/reactive mechanism. Since gaze behavior alone gives no indication as to what information is gathered and the functions it serves, we aimed to investigate the cognitive demands associated with downward gazing, as they are likely to differ between anticipatory and feedback use of visual input. To do so, we used a novel methodology to compromise walking stability in a manner that could not be resolved through modulation of stepping. Then, using interference methodology and neuroimaging, we tested for (1) interference related to dual tasking, and (2) changes in prefrontal activity. The novel methodology resulted in an increase in the time spent looking at the walking surface. Further, while some dual-task interference was observed, indicating that this gaze behavior is cognitively demanding, several gaze parameters pertaining to downward gazing and prefrontal activity correlated. These correlations revealed that a greater tendency to gaze onto the walking surface was associated with lower PFC activity, as is expected when sensory information is used through highly automatic, and useful, neural circuitry. These results, while not conclusive, do suggest that gazing onto the walking surface can be used for purposes other than anticipatory stepping control, bearing important motor-control and clinical implications.

Translation and Its Affects

2018 ◽  
Vol 47 (1) ◽  
pp. 203-215
Author(s):  
William A. Cohen
Keyword(s):  
Nineteenth Century ◽  
Middle Class ◽  
French Language ◽  
Cultural Norms ◽  
The Novel ◽  
Language Competence ◽  
Vanity Fair ◽  
Good Morning ◽  
Do So

Vanity Fair (1848) famously opens with a departure. As Becky Sharpe flounces off from Miss Pinkerton's academy, she takes leave of her patron by telling her “in a very unconcerned manner … and with a perfect accent, ‘Mademoiselle, je viens vous faire mes adieux.’” Miss Pinkerton, we learn, “did not understand French, she only directed those who did: but biting her lips and throwing up her venerable and Roman-nosed head … said, ‘Miss Sharp, I wish you a good morning’” (7). This performance of befuddlement on the part of a respectable schoolmistress bespeaks a whole collection of Victorian cultural norms about language competence in general and about the French language in particular. Even though the action is set in a period when Becky's speaking “French with purity and a Parisian accent … [was] rather a rare accomplishment” (11), the novel was written for a mid-nineteenth-century audience that could mainly count on middle-class young ladies to have acquired this degree of refinement—or at least to aspire to do so.

scholarly journals Detour learning ability and the effect of novel sensory cues on learning in Australian bull ants, Myrmecia midas

2021 ◽  
Author(s):  
Muzahid Islam ◽  
Sudhakar Deeti ◽  
Zakia Mahmudah ◽  
J. Frances Kamhi ◽  
Ken Cheng
Keyword(s):  
Animal Cognition ◽  
Sensory Information ◽  
Learning Ability ◽  
Visual Environment ◽  
Sensory Cues ◽  
Complex Environment ◽  
Physical Barriers ◽  
Tactile Cues ◽  
Detour Learning ◽  
Do So

ABSTRACTMany animals navigate in a structurally complex environment which requires them to detour around physical barriers that they encounter. While many studies in animal cognition suggest that they are able to adeptly avoid obstacles, it is unclear whether a new route is learned to navigate around these barriers and, if so, what sensory information may be used to do so. We investigated detour learning ability in the Australian bull ant, Myrmecia midas, which primarily uses visual landmarks to navigate. We first placed a barrier on the ants’ natural path of their foraging tree. Initially, 46% of foragers were unsuccessful in detouring the obstacle. In subsequent trips, the ants became more successful and established a new route. We observed up to eight successful foraging trips detouring around the barrier. When we subsequently changed the position of the barrier, made a new gap in the middle of the obstacle, or removed the barrier altogether, ants mostly maintained their learned motor routine, detouring with a similar path as before, suggesting that foragers were not relying on barrier cues and therefore learned a new route around the obstacle. In additional trials, when foragers encountered new olfactory or tactile cues, or the visual environment was blocked, their navigation was profoundly disrupted. These results suggest that changing sensory information, even in modalities that foragers do not usually need for navigation, drastically affects the foragers’ ability to successful navigate.Subject CategoryNeuroscience and Cognition

scholarly journals Neural Circuitry of Information Seeking

2020 ◽  
Author(s):  
Ethan Bromberg-Martin ◽  
Ilya E. Monosov
Keyword(s):  
Basal Ganglia ◽  
Information Seeking ◽  
Neural Circuitry ◽  
Uncertain Environments ◽  
Information Preferences ◽  
Motivated Behavior ◽  
Uncertain Future ◽  
The Brain ◽  
Primary Reward ◽  
Do So

Humans and animals navigate uncertain environments by seeking information about the future. Remarkably, we often seek information even when it has no instrumental value for aiding our decisions – as if the information is a source of value in its own right. In recent years, there has been a flourishing of research into these non-instrumental information preferences and their implementation in the brain. Individuals value information about uncertain future rewards, and do so for multiple reasons, including valuing resolution of uncertainty and overweighting desirable information. The brain motivates this information seeking by tapping into some of the same circuitry as primary rewards like food and water. However, it also employs cortex and basal ganglia circuitry that predicts and values information as distinct from primary reward. Uncovering how these circuits cooperate will be fundamental to understanding information seeking and motivated behavior as a whole, in our increasingly complex and information-rich world.

scholarly journals Epilepsy, Forgetting, and Convalescence in Ondaatje’s Warlight

2021 ◽  
Vol 13 (2) ◽  
Author(s):  
Jan Gresil S. Kahambing ◽  
Keyword(s):  
Medical Humanities ◽  
Short Circuit ◽  
Epileptic Seizures ◽  
Close Reading ◽  
The Novel ◽  
Health Humanities ◽  
Do So

Michael Ondaatje’s Warlight (2018), his latest novel to-date, contains nostalgic elements of strangeness and cartography. In this paper, I short-circuit such themes with health under medical humanities, which heeds a Nietzschean counsel of close reading in literature. To do so, I explore the case of Rachel’s illness, namely her epileptic seizures, as an instance that drives her impetus for active forgetting and eventual convalescence. A close hermeneutical reading of the novel can reveal that both of Nietzsche’s ideas on active forgetting and convalescence provide traction in terms of what this paper constructs as Rachel’s pathography or narration of illness. Shifting the focus from the main narrator, Nathaniel, I argue that it is not the novel’s reliance on memory but the subplot events of Nathaniel’s sister and her epilepsy that form a substantial case of medical or health humanities.

Influence of Different Dual-Task Conditions During Straight or Curved Walking on Gait Performance of Physically Active Older Women With Cognitive Decline

2021 ◽  
pp. 1-10
Author(s):  
Luiz Fernado Biazus-Sehn ◽  
Rafael Reimann Baptista ◽  
Régis Gemerasca Mestriner ◽  
Bianca Pacheco Loss ◽  
Daniela Aldabe ◽  
...  
Keyword(s):  
Older Women ◽  
Stride Length ◽  
Cognitive Demands ◽  
Stability Ratio ◽  
Physically Active ◽  
Secondary Tasks ◽  
Dual Tasking ◽  
Gait Parameters ◽  
Walk Ratio ◽  
Task Conditions

Real-world walking requires shifting attention from different cognitive demands to adapt gait. This study aims to evaluate the effect of dual tasking on spatiotemporal gait parameters of older adults. Participants were asked to perform a primary complex single-walking task, consisting of a fast-paced linear and a curved gait. Primary task was performed separately and simultaneously with different motor and cognitive secondary tasks. Spatiotemporal gait parameters, walk ratio, and walk stability ratio were measured. Apart from stride length, which stood relatively unchanged, gait speed and cadence were strongly affected by cognitive dual tasking. Cadence seems to be the most impacted by dual tasking during curved gait as it combines challenges of both primary and secondary tasks. Also, during curved phase, walking ratio was significantly lower and stability ratio was greater demonstrating that participants adopted a cautious gait where maintenance of stability took preference over efficiency.

Dumbledore’s army: civil disobedience in “Harry Potter and The Order of the Phoenix”

2020 ◽  
Vol 6 (1) ◽  
pp. 177-198
Author(s):  
Arthur Emanuel Leal Abreu ◽  
Alexandre de Castro Coura
Keyword(s):  
Real Life ◽  
Civil Disobedience ◽  
School Community ◽  
Harry Potter ◽  
Law And Literature ◽  
The Novel ◽  
Persuasive Strategies ◽  
Law In Literature ◽  
The Phoenix ◽  
Do So

This paper explores the connection between law and literature, considering the concept of civil disobedience as developed in the plot of the novel “Harry Potter and the Order of the Phoenix”. To do so, this research uses the approach of law in literature, by linking the actions of Dumbledore’s Army to the theory of civil disobedience by Dworkin. Also, the narrative is compared to the conception of civil disobedience as a fundamental right, based on the conflict between facticity and validity, as described by Habermas. Thus, the analysis identifies, in the novel, two categories of civil disobedience proposed by Dworkin, and discusses, in real life, the overlapping of disobedience based on justice and on politics, in order to identify the conditions that justify actions of civil disobedience. Besides that, this paper analyzes the tension between legality and legitimacy, considering the decisions of the Ministry of Magic and its educational decrees, which sets the school community apart from the official political power. In conclusion, the research examines the use of persuasive and non-persuasive strategies and the reach of civil disobedience’s purposes based on the actions of Harry Potter and of Dumbledore’s Army.

scholarly journals Goal-directed and stimulus-driven selection of internal representations

2020 ◽  
Vol 117 (39) ◽  
pp. 24590-24598
Author(s):  
Freek van Ede ◽  
Alexander G. Board ◽  
Anna C. Nobre
Keyword(s):  
Working Memory ◽  
Feature Matching ◽  
Memory Performance ◽  
Sensory Information ◽  
Internal Representations ◽  
Memory Representations ◽  
External Stimuli ◽  
Selection Of ◽  
Do So

Adaptive behavior relies on the selection of relevant sensory information from both the external environment and internal memory representations. In understanding external selection, a classic distinction is made between voluntary (goal-directed) and involuntary (stimulus-driven) guidance of attention. We have developed a task—the anti-retrocue task—to separate and examine voluntary and involuntary guidance of attention to internal representations in visual working memory. We show that both voluntary and involuntary factors influence memory performance but do so in distinct ways. Moreover, by tracking gaze biases linked to attentional focusing in memory, we provide direct evidence for an involuntary “retro-capture” effect whereby external stimuli involuntarily trigger the selection of feature-matching internal representations. We show that stimulus-driven and goal-directed influences compete for selection in memory, and that the balance of this competition—as reflected in oculomotor signatures of internal attention—predicts the quality of ensuing memory-guided behavior. Thus, goal-directed and stimulus-driven factors together determine the fate not only of perception, but also of internal representations in working memory.

scholarly journals Dr. Strangelove or How I Should Stop Worrying and Love Fascism

2018 ◽  
Vol 8 (3) ◽  
pp. 15
Author(s):  
Andre Dias
Keyword(s):  
United States ◽  
Cold War ◽  
The United States ◽  
The Novel ◽  
The Third ◽  
Form Of Government ◽  
Democratic System ◽  
The Will ◽  
The Cold War ◽  
Do So

This paper presents a Foucauldian discourse analysis of Stanley Kubrick’s Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb. The analysis examines linguistic and extralinguistic aspects of both the film and the novel. It is composed of three parts: the first is an analysis of the Manichaeism during the Cold War period and how it turned the Soviets into mortal enemies of the United States; the second is how the nuclear threat and the Cold War paranoia could destroy the democratic system in the United States; and the third analysis explain how Fascistic relations could be cultivated through the discipline of bodies. It has been concluded that the movie is presenting a concept, here referred to as Strangelove’s Hypothesis, that a Strangelovian scenario (i.e., a nuclear holocaust, usually caused by incompetence or without the will to do so) could lead to the emergence of a Fascistic-like form of government in order to restore security. The solution presented to avoid such scenario is a sociopsychological change in order to pursue more peaceful relations.

In Pursuit of the “Perforator” in the Perforator Skin Flap

2020 ◽  
Author(s):  
G. Ian Taylor ◽  
Geoffrey G. Hallock
Keyword(s):  
Skin Flap ◽  
Perforator Flap ◽  
The Novel ◽  
Full Circle ◽  
Reconstructive Microsurgery ◽  
Lower Extremity Reconstruction ◽  
History Of ◽  
Extremity Reconstruction ◽  
Surgical Manipulations ◽  
Do So

AbstractAnother congress of the World Society for Reconstructive Microsurgery (WSRM) this past year in Bologna was magnificent not just for the presentation of so many keynote lectures by the giants of our field nor the novel and innovative ideas shown by those who will someday follow in those footsteps, but by making all of us realize how many capable microsurgeons there are now practically everywhere in this world, doing incredibly important surgical management of challenges that previously were unmet and resulted in sheer devastation for so many of our patients. How much we are the same in our goals, aspirations, and abilities could not be overlooked, but it is amazing how much we also want to learn more together—each relying on the other. To do so, we must not forget our origins as we appropriately plan for the future. All this we philosophized in our WSRM panel on lower extremity reconstruction, while emphasizing on the surface the perforator flap that at the least today has caught everyone's attention. In this overview to follow, we once again tell two stories, starting with the beginnings of the concept of flaps in showing how the nomenclature has evolved over time according to our various surgical manipulations. Often overlooked, though, is a parallel timeline by the anatomists who have better elucidated the circulation to these flaps, where it will become obvious that often long ago the existence of perforators was recognized by them long before known by the surgeons. At least today, these two paths have at least temporarily intersected. Our pursuit of the “perforator” in the perforator skin flap has come full circle, following the course of the history of the flap itself—a pursuit of excellence.

scholarly journals Iraq Wars from the other Side: Transmodern Reconciliation in Sinan Antoon’s The Corpse Washer

Societies ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. 79
Author(s):  
José Yebra
Keyword(s):  
Middle East ◽  
Film Industry ◽  
The Other ◽  
Muslim World ◽  
The Novel ◽  
American Film ◽  
Iraq Wars ◽  
American Film Industry ◽  
Do So

In the last years, more and more literary accounts of recent and current wars in the Middle East have been published. In most cases, they are authored from a Western viewpoint and provide a narrow account of the Muslim world. This article focuses on Sinan Antoon’s The Corpse Washer because it opens the scope. That is, it constitutes an alternative to the imagery of the American film industry. Moreover, as Antoon is a Christian, his account of contemporary Iraq is particularly peripheral and hybrid. To analyse the novel, this article makes use of Transmodernity, a concept coined by Rosa María Rodríguez Magda in 1989. Yet, instead of Magda’s Transmodernity as a neatly Euro-centric phenomenon of worldwide connectivity, Ziauddin Sardar’s version of the concept is preferred. Sardar’s Transmodernity adds to connectivity a message of reconciliation between progress and tradition, particularly in the context of non-Western cultures. This paper defends that Antoon’s novel opens the debate on Islam to challenge the prejudiced Western discourses that have ‘legitimized’ war. To do so, Sardar’s ‘borders’ and Judith Butler’s grievability are particularly useful. In a Transmodern context, novels like Antoon’s show that humans should never be bare lives.

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