Sensory substitution: an approach to the experimental study of perception / Sustitución sensorial: un abordaje para el estudio experimental de la percepción

Abstract

Sensory substitution refers to the phenomenon where object and environment information normally acquired through one sense can be obtained by another sense. For example, visual input being provided by hearing or touching. Sensory substitution devices are technological designs that transform the characteristics of one sensory modality into stimuli of another sensory modality. These devices were developed with two purposes: (1) to assist people with sensory disabilities in daily tasks; and (2) to study the involved mechanisms of brain plasticity. This article reviews studies in which sensory substitution phenomenon is employed as a methodological strategy to study visual perception. Furthermore, its use is discussed as an experimental platform to contrast new perceptual theories and underlying neurophysiological mechanisms that are currently under review.     

The vicissitudes of affect in Horney's theory

Abstract

Karen Horney, a Neo-Freudian analyst who immigrated from Germany to the USA, undertook the difficult task of developing a theory that remained concrete psychology without resorting to biology or to metapsychological entelechies. Although her basic construct, as in Freud, is a conflict between nature and culture, nature for her is the naturally endowed real self, which the neurotic abandons bowing to cultural pressures. This process of desertion is teleological and based on imagination, and is also creative. It entails the pursuit of a god-like idealized image of the self shaped according to narrow and despoiled values. Being interpersonal, Horney's theory avoids third-person objectification which creates a false distance; it thus remains (inter)subjective. A theory of interpersonal affect, it is dramatic before being dynamic. It also abandons claims to universality as it does to the “objectivity” of the natural sciences. Horney's focus on alienation brings her close to Hegel and Marx, a neglected fact, and she pioneered feminist and self-help theories. The difficulty in reading Horney is not her abstruseness, since her theory refuses technicism. It resides rather in that resistance created by what Althusser called interpellation: one feels her finger pointed at oneself as one reads.     

A Controlled Pilot-Outcome Study of Sensory Integration (SI) in the Treatment of Complex Adaptation to Traumatic Stress

This study tested whether sensory integration (SI) treatment combined with psychotherapy would improve symptom outcome over psychotherapy alone in the treatment of complex posttraumatic stress, as measured by the Disorders of Extreme Stress Not Otherwise Specified (DESNOS) clinical construct in a group of 10 adult patients with histories of childhood abuse. DESNOS symptoms were assessed at three time periods (T1, baseline; T2, after experimental group SI treatment; and T3, after wait-list control group SI treatment) using the Structured Interview for Disorders of Extreme Stress (SIDES). The Sensory Learning Program? (SLP), developed by the Sensory Learning Institute of Boulder, Colorado, was used as the SI treatment modality. Results indicated significant differential improvement for the group treated with SLP in SIDES Total Score (T1/T2 and T2/T3), Self Perception (T1/T2 and T2/T3), Affect Regulation (T2/T3), and Alterations in Meaning (T1/T2).     

Dissociation of sensory facilitation and decision bias in statistical learning

ABSTRACT

The detection of regularities in the sensory environment, known as statistical learning, is an important brain function that has been observed in many experimental contexts. In these experiments, statistical learning of patterned sensory stimulation leads to improvements in the speed and/or accuracy with which subsequent stimuli are recognized. That is, statistical learning facilitates the transformation of sensory stimuli into motor responses, but the mechanism by which this occurs is unclear. Statistical learning could improve the efficiency of sensory processing, or it could bias responses toward particular outcomes. The distinction is important, as these different hypotheses imply different functions and different neural substrates for statistical learning. Here we address this problem by studying statistical learning as a decision-making process, which allows us to leverage the extensive computational literature on this topic. Specifically we describe a method for applying the Diffusion Decision Model (DDM) to isolate different sensory and cognitive processes associated with decision-making. The results indicate that statistical learning improves performance on a visual learning task in two distinct ways: by altering the efficiency of sensory processing and by introducing biases in the decision-making process. By fitting the parameters of the DDM to data from individual subjects, we find that the prominence of these two factors differed substantially across the population, and that these differences were predictive of individual performance on the psychophysical task. Overall, these results indicate that different cognitive processes can be recruited by statistical learning, and that the DDM is a powerful framework for detecting these influences.     

Are you with me? Probing the human capacity to recognize external/internal attention in others’ faces

ABSTRACT

Facial cues provide information about affective states and the direction of attention that is important for human social interaction. The present study examined how this capacity extends to judging whether attention is internally or externally directed. Participants evaluated a set of videos and images showing the face of people focused externally on a task, or internally while they performed a task in imagination. We found that participants could identify the focus of attention above chance in videos, and to a lesser degree in static images, but only when the eye region was visible. Self-reports further indicated that participants relied particularly on the eye region in their judgements. Interestingly, people engaged in demanding cognitive tasks were more likely judged to be externally focused independent of the actual focus of attention. These findings demonstrate that humans use information from the face and especially from the eyes of others not only to infer external goals or actions, but also to detect when others focus internally on their own thoughts and feelings.     

Book reviews

Books reviewed:
Dale Mathers, An Introduction to Meaning and Purpose in Analytical Psychology
Jane Cabot Reid (ed. & narrator), Jung, My Mother, and I: The Analytic Diaries of Catharine Rush Cabot
Heather Formaini (compiler), Landmarks. Papers by Jungian Analysts from Australia and New Zealand
Neil Russack, Animal Guides in Life, Myth and Dreams: An Analyst's Notebook
Rose–Emily Rothenberg, The Jewel in the Wound
Judith Edwards (ed.), Being Alive, Building on the Work of Anne Alvarez     

Putting on Virtue Without Putting Off Feminists

Mary Wollstonecraft's account of virtue discourse and formation, which deploys ancient and medieval ethical resources for modern purposes, challenges a prevalent narrative in Christian ethics today. Several prominent Christian virtue ethicists have left the false impression that serious reflection on the virtues depends on pre‐modern traditions and the eschewal of modern resources. Troubled by skeptical quandaries and the difficulty of adjudicating conflicting claims about virtue, they are concerned with securing a pre‐modern court of appeals. Many feminists worry that these appeals unduly constrain because they naturalize what is contingent and fix what should be open to debate. Wollstonecraft does not share the skeptical concerns and so has no need for metaethical appeals. Adapting Edmund Burke's moral philosophy, her use of virtue discourse deploys his metaphor of “the wardrobe of the moral imagination” to more religious, radical, and democratic ends. This way of proceeding signals the possibility of a rapprochement between feminists of various stripes and those interested in deploying the discourse of the virtues for contemporary Christian ethics.     

The ethics of complexity and the complexity of ethics

Abstract

In this paper, we investigate the implications that a general view of complexity - i.e. the view that complex phenomena are irreducible - hold for our understanding of ethics. In this view, ethics should be conceived of as constitutive of knowledge and identity, rather than as a normative system that dictates right action. Using this understanding, we elaborate on the ethics of complexity and the complexity of ethics. Whilst the former concerns the nature and the status of our modelling choices, the latter denotes a contingent and recursive understanding of ethics. Although the complexity of ethics cannot be captured in a substantive normative model, we argue that this view of ethics nevertheless commits one to, what we term, ‘the provisional imperative’. Like Kant’s categorical imperative, the provisional imperative is sub-stantively-empty; however, unlike Kant’s imperative, our imperative cannot be used to generate universal ethical principles. As such, the provisional imperative simultaneously demands that we must be guided by it, whilst drawing attention to the exclusionary nature of all imperatives. We further argue that the provisional imperative urges us to adopt a certain attitude with regard to ethical decision-making, and that this attitude is supported and nurtured by provisionality, transgressivity, irony, and imagination.     

A Strange Fire: an exploration of psycho‐spiritual development aided by Jungian analysis and Vedanta

This paper explores the process of psychological and spiritual development through a series of active imaginations arising from the author's ‘psycho‐spiritual quest’, a process of transformation in which the individual progressively frees themselves from the ego's identifications and may be afforded a vision of the ‘self as consciousness’, as described by Vedanta. The author describes how this quest was facilitated by the disciplines of Transcendental Meditation, Jungian analysis and Vedanta, and how these three disciplines can work together to foster psycho‐spiritual development. The paper aims to de‐mystify the actual experiences that can accompany these practices. The records of these active imaginations, tracing some key stages in this process, are then presented, with a commentary by Marcus West, linking them to Jung's concepts of ego and Self and recent understandings of consciousness and ego development. There is a discussion of Jung's conceptualizations of the ego and the Self and his rejection of the Vedantic understanding of the Self as consciousness. These views are then explored and a reconciliation is suggested through the understanding of the process of disidentification where the difference between Jung's view of the Self and that of Vedanta is understood to be due to the extent of disidentification from the contents of consciousness.     

From My Place: Teaching the Holocaust and Judaism at the University of Mississippi Fifty‐Three Years after James Meredith

This essay explores classroom dynamics when students identify and connect their own painful experiences to structural racism or ethnocentrism exhibited in the Holocaust or parts of Jewish history. The intrusion of this proximal knowledge can be an obstacle to student learning. If engaged by professors, however, I argue that proximal knowledge can be a catalyst that promotes learning. Social scientific theory provides a useful lens for helping students to better grasp and contextualize both their old experiences and the new materials that are being taught in the course within the larger structural frames of race, religion, and ethnicity that they have selected, but may not fully appreciate. Reflective guided journaling is an essential part of the learning experience.