We focus on a particular class of computably enumerable degrees, the array noncomputable degrees defined by Downey, Jockusch, and Stob, to answer questions related to lattice embeddings and definability in the partial ordering of c. e. degrees under Turing reducibility. We demonstrate that the latticeM5 cannot be embedded into the c. e. degrees below every array noncomputable degree, or even below every nonlow array noncomputable degree. As Downey and Shore have proved that M5 can be embedded below every nonlow2 degree, (...) our result is the best possible in terms of array noncomputable degrees and jump classes. Further, this result shows that the array noncomputable degrees are definably different from the nonlow2 degrees. We note also that there are embeddings of M5 in which all five degrees are array noncomputable, and in which the bottom degree is the computable degree 0 but the other four are array noncomputable. (shrink)

A mime presented on videotape Adler’s six great ideas of truth, goodness, beauty, liberty, equality, and justice; their opposites; and the transitions from the positive or “good” concepts to their opposites. Using Johansson’s (1973) technique, the performer’s 12 joints were marked with points of light. Overall, the viewers had marginal success in identifying the concepts, but females were much more successful than males in identifying the “bad” ones of evil, slavery, falsehood, and ugliness, averaging 62% correct to the males’ 23%. (...) The results agree with Hall’s (1984) discussion of sex differences in the interpretation of nonverbal behavior. (shrink)

A computably enumerable (c.e.) degree is a maximal contiguous degree if it is contiguous and no c.e. degree strictly above it is contiguous. We show that there are infinitely many maximal contiguous degrees. Since the contiguous degrees are definable, the class of maximal contiguous degrees provides the first example of a definable infinite anti-chain in the c.e. degrees. In addition, we show that the class of maximal contiguous degrees forms an automorphism base for the c.e. degrees and therefore for the (...) Turing degrees in general. Finally we note that the construction of a maximal contiguous degree can be modified to answer a question of Walk about the array computable degrees and a question of Li about isolated formulas. (shrink)

Innovative forms of green urban architecture aim to combine food, production, and design to produce food on a larger scale in and on buildings in urban areas. It includes rooftop gardens, rooftop greenhouses, indoor farms, and other building-related forms. This study uses the framework of sustainability to understand the role of ZFarming in future urban food production and to review the major benefits and limitations. The results are based on an analysis of 96 documents published in accessible international resources. The (...) analysis shows that ZFarming has multiple functions and produces a range of non-food and non-market goods that may have positive impacts on the urban setting. It promises environmental benefits resulting from the saving and recycling of resources and reduced food miles. Social advantages include improving community food security, the provision of educational facilities, linking consumers to food production, and serving as a design inspiration. In economic terms it provides potential public benefits and commodity outputs. However, managing ZFarming faces several challenges. For some applications, the required technologies are known but have not been used or combined in that way before; others will need entirely new materials or cultivation techniques. Further critical aspects are the problem of high investment costs, exclusionary effects, and a lack of acceptance. In conclusion, ZFarming is seen as an outside-the-box solution which has some potential in generating win–win scenarios in cities. Nevertheless, ZFarming practices are not in and of themselves sustainable and need to be managed properly. (shrink)

The everyday concept of a social group is approached by examining the concept of going for a walk together, an example of doing something together, or "shared action". Two analyses requiring shared personal goals are rejected, since they fail to explain how people walking together have obligations and rights to appropriate behavior, and corresponding rights of rebuke. An alternative account is proposed: those who walk together must constitute the "plural subject" of a goal. The nature of plural subjecthood, the (...) thesis that social groups are plural subjects, and the relation of these ideas to Rousseau's and Hobbes 's, are briefly explored. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Philosophers' Walks by Bruce BaughTim IngoldBaugh, Bruce. Philosophers' Walks. Routledge, 2022. 252pp.Yesterday evening, much to my satisfaction, I finished reading Bruce Baugh's Philosophers' Walks. The author ends by putting down his pen. It is time, he declares, "to put my boots on and walk out into the world" (236). For me, it was bedtime, but knowing that I was to write this review, I resolved to sleep on (...) it. On waking, I set out, as is my wont, for the short walk I take every morning before breakfast. The walk itself is nothing special: it takes in the streets of my neighborhood and a nearby park. Yet every day is different as the weather changes, trees come in and out of leaf, blooms flourish and wilt in front gardens, children on their way to school throng the streets in term-time only to vanish in vacations. Lately, a nineteenth-century fountain in the park has been lovingly restored, and every morning I am refreshed by its water-jets and tinkly sound. Most days I am writing in my head, on whatever I have on the go at the time. Walking briskly and on my own, I find that words that had tied me in knots the day before miraculously straighten themselves out with a rhythm and fluency matching my pace. I cannot, however, walk and write at the same time. It is physically impossible. So as the words come, I have to keep repeating them to myself, until I make it home. With no time to lose, I seize notebook, pencil, and spectacles to jot them down. Only when I have done so can I finally sit down to breakfast. And that's exactly what happened this morning. With my hastily scribbled notes, some good words, and the odd finished sentence, I am ready to write this review.I am not, of course, the first to have discovered the benefits of thinking-while-walking. Countless predecessors have done so before me, including some of the most celebrated figures of the past four centuries of European intellectual history. And so has Baugh. The idea behind his book is that if by walking, philosophers have arrived at many of their most cherished insights, then perhaps we could better take the measure of these insights not merely by reading their words but by retracing their steps, walking the same paths as they did. And this, precisely, is what [End Page 131] Baugh, often accompanied by his wife Diane Lindsay, set out to do. Each chapter, barring the introduction and conclusion, is devoted to one or sometimes two characters, and each blends reflection on their ideas and life-histories of walking with the author's recollection of attempting to follow in their footsteps, and of the experience and even self-knowledge gained from doing so. Some walks are in verdant countryside, or more spectacular Alpine scenery, others are in big cities like London and Paris. Baugh does not pretend that the walks of his chosen characters can be replicated exactly when so much has changed, in both rural areas and the urban fabric, since their heydays. Nor can we ever know exactly what was going through their heads at the time. It is nevertheless surprising how many echoes you can pick up from the past, so long as you keep your ears to the ground, and Baugh is an astute listener. For us, his readers, the book is an invitation to join in his travels, albeit at a distance, and by doing so, to enrich our understanding not only of his characters and of how they thought, but of ourselves as well.Though the book is called Philosophers' Walks, Baugh has cast his net wide to include characters for whom the epithet "poet," "artist," or "writer" might sooner come to mind than "philosopher." No matter: all such labels are a touch arbitrary, and it's the thought that counts. So here they are, in chronological order (not the order in which they appear in the book): Pierre Grassendi, Jean-Jacques Rousseau, Samuel Taylor Coleridge, Søren Kierkegaard, Friedrich Nietzsche, Virginia Woolf, André Breton, Jean-Paul Sartre, Simone de... (shrink)

"Artists are trying to move away from the influence of competitive corporate culture that has increasingly defined art as an abrasive urban career. Artists are trying to replace this with the humbler notion of art as a practice, as a mindful way of life, consisting of consciously creative gestures, visible and invisible, large and small. Art practice is a private and public, selfless and generous, creative life process resulting in a conscious cultural product." "Walking Art Practice" brings together the (...) author's experiences as a monk, performance artist, social choreographer and educator. It serves as a provocation, walkers' manifesto, and teaching guide for walking as a mindful cultural activity and as mindful cultural activism. It is an inspirational text for artists, art students and anyone who loves to walk. Ernesto Pujol combines elements from an art book, field journal and walkers' manifesto. It is a text for performative artists, art students, and all who walk as cultural activism. This book is an invitation to: Rethink what it means to walk and explore different ways in which to walk as: a cultural practice; a meditative practice; a radical practice; art; healing; and social engagement; Reconsider how to attend to the inner and outer landscape whilst walking; Treat walking as a performance resource; Walk as an everyday pilgrimage; Walk slowly, walk in and with awareness, walk with and without skill, walk to regain and to lose. [Subject: Performance Art, Walking, Meditation]. (shrink)

When Dominique Strauss-Kahn, then head of the IMF, was arrested on charges of sexual assault arising from events that were alleged to have occurred during his stay in an up-market hotel in New York, a sizeable portion of French public opinion was outraged - not by the possibility that a well-connected and widely-admired politician had assaulted an immigrant hotel worker, but by the way in which the accused had been treated by the American authorities. I shall argue that in one (...) relatively minor respect, Strauss-Kahn’s defenders were correct. They were correct to argue that the parading of Strauss-Kahn before the press, in handcuffs - the so-called perp walk - constituted a form of punishment; and thus that it contravened the principle that criminal punishments should only be administered after a fair trial. So-called ‘expressive’ theorists of punishment hold that a form of harsh treatment can only constitute a form of punishment if it has an expressive role. Within the expressive family, we can distinguish between views on which the primary target of the communication to be the society of which either offender, or victim, or both are members—what I call ‘Denunciatory Views’, and views which take the principle target of penal communication to be the offender—such as Antony Duff’s Communicative View. I shall argue that on both a minimal account of punishment and on either kind of expressive view, ‘perp walks’ are a form of punishment. (shrink)

It is widely believed that we ought not to criticize others for wrongs that we ourselves have committed. The author draws out and challenges some of the background assumptions about the practice of criticism that underlie our attraction to this claim, such as the tendency to think of criticism either as a social sanction or as a didactic intervention. The author goes on to offer a taxonomy of cases in which the moral legitimacy of criticism is challenged on the grounds (...) that the critic him- or herself engages in the behavior that he or she criticizes in others. The author argues that, in each type of case, the would-be critics should not constrain their participation in moral discourse on the grounds that they are not themselves innocent of the wrongdoing they criticize in others. (shrink)

This book compares Chinese thought to that of the West. With recent Western interest in Chinese Buddhism (also known as Zen) and Daoism an understanding of their underlying ways of thinking is crucial for approaching them properly. The topics treated include worldview, world -- man relation, and mind and consciousness. A unique feature of the book is the comparison between Daoism and Chinese Buddhism on the one hand, and the Greek schools of Epicureanism and Stoicism on the other. A remarkable (...) similarity as well as a significant difference is found between these ways of life. In both China and Greece they learned how to live in the 'Now'. But in China this is centred around the body, while in Greece this was a strictly rational pursuit. The main differences between the Chinese and Western ways can be summarised in the words 'accord' and 'separation'. Clearly, in East and West different roads have been, and still are walked. Yet, these roads do not inevitably entail different ways of life. 'Walking two roads at once' (Zhuangzi) it is possible to go beyond accord and separation. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Walking the Bodhisattva Path/Walking the Christ PathU.S. Conference of Catholic BishopsCatholics and Buddhists brought together by Dharma Realm Buddhist Association, the San Francisco Zen Center, and the United States Conference of Catholic Bishops (USCCB) met 20-23 March 2003 in the first of an anticipated series of four annual dialogues. Abbot Heng Lyu, the monks and nuns, and members of the Dharma Realm Buddhist Association hosted the dialogue (...) at the City of Ten Thousand Buddhas in Talmage, California. The community had transformed their Confucius Hall into a chapel, with a large, newly constructed wooden cross on a wall above an altar facing out from a raised platform, so the Catholic delegation would have a space for worship. A special poster announcing the theme of the conference, "Walking the Bodhisattva Path/Walking the Christ Path," showing a Buddhist dharma wheel at one foot of a bridge and a Celtic cross at the other foot, had been created by the hosting community.The daily schedule for the dialogue did not interfere with the monastic routine at the City of Ten Thousand Buddhas, which included early morning chanting (4:00-5:00 am), daily rituals in the Buddha Hall, and the single large meal for monastics before noon to which all participants were invited. Catholics and Buddhists meeting in the dialogue began each day with an optional forty-five minutes of quiet sitting together in the monastery meditation hall, each following their own form of meditation and prayer. There was a Eucharist on Friday and Saturday evenings for the Catholics and to which the Buddhists were invited, and additional meals of breakfast and supper throughout the meeting at the City's Jyun Kang Restaurant.Fourteen Buddhists and fourteen Catholics participated in the formal discussions. Each participant spoke on what it means to them to follow Christ or the way of the Bodhisattvas or enlightened beings. In addition to speaking, each participant distributed a short passage, usually from a traditional text, on this topic. Several passages from Master Dogen's Shobogenzo and the Gospel of John were among those shared by the group. Other passages shared were taken from the Avatamsaka Sutra and the Shurangama Sutra and from the other gospels and the writings of Zen master HakuinZenji, the Dalai Lama, Korean Zen Master I-sahn Hye-yeon, the teachings of Master [End Page 247] Hsuan Hua, Shantideva, Origen, St. Ignatius, St. Benedict, the author of The Cloud of Unknowing, St. John of the Cross, and Chiara Lubich. A minute of silence separated the fifteen-minute segments for each presentation. With so large a group, most of the time in the formal sessions involved listening to series of presentations; however, during discussion periods the participants asked several challenging questions of one another.Some participants noted the tension they felt between belonging to a particular religious group and the need to let go of any consequential narrowness. The goal of the discussion was to promote understanding of the differences and similarities between Christianity and Buddhism. At one point, the participants noted several concerns about mutual enrichment: whether Buddhist methods can be separated from Buddhism and Christian methods from Christianity, and what specific aspects of Christian practice truly enrich Buddhists and which Buddhist practices likewise enrich Christians. Several times participants discussed their understanding of terms such as transformation, grace, the incarnation and the passion of Jesus, discernment of spirits, prayer, Buddha-nature, and related terms. There was consensus that Buddhists and Catholics can practically help one another regarding mental cultivation and religious precepts. They expressed this consensus in their choice of the topic forthe next dialogue, "Transformation of Hearts and Minds: Chan/Zen-Catholic Approaches to Precepts."The group agreed to reconvene in 2004 to respond to six presentations, three from each side, on different aspects of this topic.Chairing the sessions were Rev. Heng Sure for the Dharma Realm Buddhist Association, Rev. Taigen Dan Leighton for the San Francisco Zen Center, and Bishop John Webster for the United States Conference of Catholic Bishops. Their three organizations are the sponsors of the Northern California Chan/Zen-Catholic Dialogue. Chan and Zen are respectively the Chinese and Japanese terms for the meditation school... (shrink)

Motor development – traditionally studied in WEIRD populations – falls victim to assumptions of universality similar to other domains described by Henrich et al. However, cross-cultural research illustrates the extraordinary diversity that is normal in motor skill acquisition. Indeed, motor development provides an important domain for evaluating cultural challenges to a general behavioral science.

The article provides a moral analysis of the commercial trade of financial claims against private debtors. Secondary debt markets process a type of object that differs from regular commodities. The specificity of debt lies in its peculiar relationality that is in tension with its legal constitution as a commercial object, or with its treatment as a mere thing. The constitution of a credit claim presupposes a corresponding financial liability. Thus, debt relations are constituted by polar correlates of deontic modalities. Debt (...) buyers do not obtain mere monadic objects, but intersubjective rights of action against debtors. In turn, they arguably do not become mere owners of abstract claims, but successors to a position in a preceding social relation that is imbued with moral limitations and responsibilities. Markets for debt should thus be subjected to the deontic logic of credit relations, not to the norms of ownership in things. (shrink)

Ethical research practice requires inclusionary approaches that enable people to contribute as fully as possible. Not enough is yet known about the impacts of dementia on daily life, however, people with dementia may find inclusion in research challenging, as the ‘cognitive load’ required may be overwhelming. When responding is difficult, others may contribute and the voice of people with dementia may be diminished. In this paper, the method of walking interviews is reflected on following a study that examined the (...) acceptability and usefulness of Global Positions Systems (GPS). Attention is drawn to an observation of the contributions people with dementia made whilst out walking with the researchers. When out walking, people with dementia used the environment as sensory prompts to start conversations, and these discussions shaped research data, and enabled people with dementia to raise concerns about the impacts of dementia, their futures and what they feared for themselves and their families. The challenges that people with dementia faced in negotiating everyday practices were visible. The person with dementia showed the researcher around their neighbourhood, and this significantly changed the interview dynamic and positioned people with dementia as leading the interaction. (shrink)

Human beings are both supremely rational and deeply superstitious, capable of believing just about anything and of questioning just about everything. Indeed, just as our reason demands that we know the truth, our skepticism leads to doubts we can ever really do so. In Walking the Tightrope of Reason, Robert J. Fogelin guides readers through a contradiction that lies at the very heart of philosophical inquiry. Fogelin argues that our rational faculties insist on a purely rational account of the (...) universe, yet at the same time, the inherent limitations of these faculties ensure that we will never fully satisfy that demand. As a result of being driven to this point of paradox, we either comfort ourselves with what Kant called "metaphysical illusions" or adopt a stance of radical skepticism. No middle ground seems possible and, as Fogelin shows, skepticism, even though a healthy dose of it is essential for living a rational life, "has an inherent tendency to become unlimited in its scope, with the result that the edifice of rationality is destroyed." In much Postmodernist thought, for example, skepticism takes the extreme form of absolute relativism, denying the basis for any value distinctions and treating all truth-claims as equally groundless. How reason avoids disgracing itself, walking a fine line between dogmatic belief and self-defeating doubt, is the question Fogelin seeks to answer. Reflecting upon the ancient Greek skeptics as well as such thinkers as Hume, Kant, Wittgenstein, Nietzsche, and Whitman, this book takes readers into--and through--some of philosophy's most troubling paradoxes. (shrink)

This engaging book takes us on philosophical tour, following in the footsteps and thoughts of some great philosophers and thinkers. A fresh and imaginative reading of great philosophers, offering a new way of understanding some of their major works and ideas.

A complete translation and analysis of "All Things Flow into Form" (Fan wu liu xing), a recently discovered manuscript from the Warring States period (481-221 BCE).

This article looks at the discursive and practical construction of walking in a British context. It examines the ways in which notions and practices generated by conventions around the meaning of walking in the countryside apparently contradict prevailing ideas that walking is an escape from the restrictions of everyday urban life. Identifying particular, competing forms of walking and the techniques and identities that they espouse, it is suggested that such activities are suffused with disciplinary norms. Yet (...) despite these conventions, walking holds out the possibility of disruption, through confrontation with physical discomfort, unpredictable features and sensual experience that contrasts with much contemporary forms of movement. The work of artist Richard Long is used to explore these issues. (shrink)

Neuroarchitecture uses neuroscientific tools to better understand architectural design and its impact on human perception and subjective experience. The form or shape of the built environment is fundamental to architectural design, but not many studies have shown the impact of different forms on the inhabitants’ emotions. This study investigated the neurophysiological correlates of different interior forms on the perceivers’ affective state and the accompanying brain activity. To understand the impact of naturalistic three-dimensional (3D) architectural forms, it is essential to perceive (...) forms from different perspectives. We computed clusters of form features extracted from pictures of residential interiors and constructed exemplary 3D room models based on and representing different formal clusters. To investigate human brain activity during three-dimensional perception of architectural spaces, we used a mobile brain/body imaging (MoBI) approach recording the electroencephalogram (EEG) of participants while they naturally walk through different interior forms in virtual reality (VR). The results revealed a strong impact of curvature geometries on activity in the anterior cingulate cortex (ACC). Theta band activity in ACC correlated with specific feature types (rs (14) = 0.525, p = 0.037) and geometry (rs (14) = - 0.579, p = 0.019), providing evidence for a role of this structure in processing architectural features beyond their emotional impact. The posterior cingulate cortex and the occipital lobe were involved in the perception of different room perspectives during the stroll through the rooms. This study sheds new light on the use of mobile EEG and VR in architectural studies and provides the opportunity to study human brain dynamics in participants that actively explore and realistically experience architectural spaces. (shrink)

To test if dreams contain remote or never-experienced motor skills, we collected during 6 weeks dream reports from 15 paraplegics and 15 healthy subjects. In 9/10 subjects with spinal cord injury and in 5/5 with congenital paraplegia, voluntary leg movements were reported during dream, including feelings of walking , running , dancing , standing up , bicycling , and practicing sports . Paraplegia patients experienced walking dreams just as often as controls . There was no correlation between the (...) frequency of walking dreams and the duration of paraplegia. In contrast, patients were rarely paraplegic in dreams. Subjects who had never walked or stopped walking 4–64 years prior to this study still experience walking in their dreams, suggesting that a cerebral walking program, either genetic or more probably developed via mirror neurons is reactivated during sleep. (shrink)

I wish to speak a word for Nature, for absolute freedom and wildness, as contrasted with a freedom and culture merely civil,—to regard man as an inhabitant, or a part and parcel of Nature, rather than a member of society. I wish to make an extreme statement, if so I may make an emphatic one, for there are enough champions of civilization: the minister and the school committee and every one of you will take care of that.

Cognitive decisions are best described by quantum mathematics. Do quantum information devices operate in the brain? What would they look like? Fuss and Navarro () describe quantum lattice registers in which quantum superpositioned pathways interact (compute/integrate) as ‘quantum walks’ akin to Feynman's path integral in a lattice (e.g. the ‘Feynman quantum chessboard’). Simultaneous alternate pathways eventually reduce (collapse), selecting one particular pathway in a cognitive decision, or choice. This paper describes how quantum walks in a Feynman chessboard are conceptually identical (...) to ‘topological qubits’ in brain neuronal microtubules, as described in the Penrose-Hameroff 'Orch OR' theory of consciousness. (shrink)

An introduction to mindful walking, which can be done anywhere, at any time—even on a commute to work or school. The fourth book in the bestselling Mindfulness Essentials series, a back-to-basics collection from world-renowned Zen Master Thich Nhat Hanh that introduces everyone to the essentials of mindfulness practice. Slow, concentrated walking while focusing on in- and out-breaths allows for a unique opportunity to be in the present. There is no need to arrive somewhere—each step is the arrival to (...) concentration, joy, insight, and the momentary enlightenment of aliveness. When your foot touches the Earth with awareness, you make yourself alive and the Earth real, and you forget for one minute the searching, rushing, and longing that rob our daily lives of awareness and cause us to "sleepwalk" through life. Thich Nhat Hanh shares amusing stories of the impact mindful walking has on both the walker and those who notice him, and shows how mindful walking can be a technique for diminishing depression, recapturing wonder, and expressing gratitude. Pocket-sized, with original two color illustrations by Jason DeAntonis, How to Walk is a unique gift for all ages, sharing a simple practice that can have a profound effect on practitioners. (shrink)

Understanding the neural underpinnings of emotion enables a re-imagining of traditional aesthetics in which landscape art is conceived as "dance for the dancer." Eschewing the "ocularcentric" for the _kinesthetic_ yields a fresh theory of artistic expression in landscape applicable to all fine art.

Motor training to improve walking and balance function is a common aspect of rehabilitation following motor-incomplete spinal cord injury. Evidence suggests that moderate- to high-intensity exercise facilitates neuroplastic mechanisms that support motor skill acquisition and learning. Furthermore, enhancing corticospinal drive via transcranial direct current stimulation may augment the effects of motor training. In this pilot study, we investigated whether a brief moderate-intensity locomotor-related motor skill training circuit, with and without tDCS, improved walking and balance outcomes in persons with (...) MISCI. In addition, we examined potential differences between within-day and between-day effects of MST. Twenty-six adults with chronic MISCI, who had some walking ability, were enrolled in a 5-day double-blind, randomized study with a 3-day intervention period. Participants were assigned to an intensive locomotor MST circuit and concurrent application of either sham tDCS or active tDCS. The primary outcome was overground walking speed measured during the 10-meter walk test. Secondary outcomes included spatiotemporal gait characteristics, peak trailing limb angle, intralimb coordination, the Berg Balance Scale, and the Falls Efficacy Scale-International questionnaire. Analyses revealed a significant effect of the MST circuit, with improvements in walking speed, cadence, bilateral stride length, stronger limb TLA, weaker limb ACC, BBS, and FES-I observed in both the MST+tDCSsham and MST+tDCS groups. No differences in outcomes were observed between groups. Between-day change accounted for a greater percentage of the overall change in walking outcomes. In persons with MISCI, brief intensive MST involving a circuit of ballistic, cyclic locomotor-related skill activities improved walking outcomes, and selected strength and balance outcomes; however, concurrent application of tDCS did not further enhance the effects of MST.Clinical Trial Registration[ClinicalTrials.gov], identifier [NCT03237234]. (shrink)

Experiments in animal models have shown that running increases neuronal activity in early visual areas in light as well as in darkness. This suggests that visual processing is influenced by locomotion independent of visual input. Combining mobile electroencephalography, motion- and eye-tracking, we investigated the influence of overground free walking on cortical alpha activity and eye movements in healthy humans. Alpha activity has been considered a valuable marker of inhibition of sensory processing and shown to negatively correlate with neuronal firing (...) rates. We found that walking led to a decrease in alpha activity over occipital cortex compared to standing. This decrease was present during walking in darkness as well as during light. Importantly, eye movements could not explain the change in alpha activity. Nevertheless, we found that walking and eye related movements were linked. While the blink rate increased with increasing walking speed independent of light or darkness, saccade rate was only significantly linked to walking speed in the light. Pupil size, on the other hand, was larger during darkness than during light, but only showed a modulation by walking in darkness. Analyzing the effect of walking with respect to the stride cycle, we further found that blinks and saccades preferentially occurred during the double support phase of walking. Alpha power, as shown previously, was lower during the swing phase than during the double support phase. We however could exclude the possibility that the alpha modulation was introduced by a walking movement induced change in electrode impedance. Overall, our work indicates that the human visual system is influenced by the current locomotion state of the body. This influence affects eye movement pattern as well as neuronal activity in sensory areas and might form part of an implicit strategy to optimally extract sensory information during locomotion. (shrink)

Walking is an activity that always unfolds within a certain landscape. Tim Ingold has used the notion of “taskscape” to denote pragmatic uses of terrain. Whilst walking, we come to intersect with a variety of taskscapes. As Julia Tanney has highlighted, formal language can only get us so far when thinking about spontaneous, non-theoretical and non-representational activities. Borrowing Gilbert Ryle’s distinction between “knowing that” and knowing how”, I argue for a concept of walking that does not privilege (...) intentions. When somebody walks, they melt into a taskscape not entirely of their own design. Mind is inherently ecological. It is enacted within a certain ecology, and is actually inseparable from its environment. Mind is the sum of intelligent enactments. According to the position I seek to advance in this article, walking may be approached in an object-oriented manner. Each form of behavior composes an enactment that meshes with a certain ecology, what W. Teed Rockwell has called a “behavioral field.” Mind is the inherently relational enactment of a set of behavioral dispositions which are always already enmeshed within a field. When these dispositions enter what, following Markus Gabriel, may be called “fields of sense”, mind and walking become independent objects in their own right. (shrink)