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PubMed2006

Quantum-like brain: "Interference of minds".

We present a contextualist statistical realistic model for quantum-like representations in physics, cognitive science, and psychology. We apply this model to describe cognitive experiments to check quantum-like structures of mental processes. The crucial role is played by interference of probabilities for mental observables. Recently one such experiment based on recognition of images was performed. This experiment confirmed our prediction on the quantum-like behavior of mind. In our approach "quantumness of mind" has no direct relation to the fact that the brain (as any physical body) is composed of quantum particles. We invented a new terminology "quantum-like (QL) mind." Cognitive QL-behavior is characterized by a nonzero coefficient of interference lambda. This coefficient can be found on the basis of statistical data. There are predicted not only cos theta-interference of probabilities, but also hyperbolic cosh theta-interference. This interference was never observed for physical systems, but we could not exclude this possibility for cognitive systems. We propose a model of brain functioning as a QL-computer (there is a discussion on the difference between quantum and QL computers).

Animals↗
PubMed2005

Computational models of collective behavior.

Computational models of human collective behavior offer promise in providing quantitative and empirically verifiable accounts of how individual decisions lead to the emergence of group-level organizations. Agent-based models (ABMs) describe interactions among individual agents and their environment, and provide a process-oriented alternative to descriptive mathematical models. Recent ABMs provide compelling accounts of group pattern formation, contagion and cooperation, and can be used to predict, manipulate and improve upon collective behavior. ABMs overcome an assumption that underlies much of cognitive science--that the individual is the crucial unit of cognition. The alternative advocated here is that individuals participate in collective organizations that they might not understand or even perceive, and that these organizations affect and are affected by individual behavior.

Cognition↗
PubMed1991

Psychology research and NIMH. Opportunities and challenges.

As an essential contributor to the scientific understanding of mental health and illness, psychology continues to be the leading discipline receiving National Institute of Mental Health (NIMH) research support. Future behavioral science research initiatives at NIMH are likely to emphasize cognitive science, behavioral genetics, behavioral patterns and physiological systems, and personality, motivation, emotion, and interpersonal processes. Although prognostication is particularly risky in times of transition such as the present, advocacy efforts focused on mental-illness-related research are most likely to help the NIMH and the field if they avoid polarization and factionalization by providing equal encouragement for studies of biological aspects, of behavioral aspects, and of their interaction.

Animals↗
PubMed1991

A paradigm for the next millennium: health information science.

Although historically a major concern of both the artist and the scientist was the observation of nature, the two disciplines split when science became more wedded to mathematics and quantification. Today, with visualization, art and science can again together provide a view of the natural world. A prototype curriculum for a new multidisciplinary science--Health Information Science--incorporates aspects of computer science, cognitive psychology, bioengineering, biomedical visualization, medicine, dentistry, anthropology, mathematics, library science, and the visual arts.

Art↗
PubMed1998

Recovered memories of trauma: phenomenology and cognitive mechanisms.

We outline four current explanations for the reported forgetting of traumatic events, namely repression, dissociation, ordinary forgetting, and false memory. We then review the clinical and survey evidence on recovered memories, and consider experimental evidence that a variety of inhibitory processes are involved in everyday cognitive activity including forgetting. The data currently available do not allow any of the four explanations to be rejected, and strongly support the likelihood that some recovered memories correspond to actual experiences. We propose replacing the terms repression and dissociation as explanations of forgetting with an account based on cognitive science.

Amnesia↗
PubMed1999

Is vision continuous with cognition? The case for cognitive impenetrability of visual perception.

Although the study of visual perception has made more progress in the past 40 years than any other area of cognitive science, there remain major disagreements as to how closely vision is tied to cognition. This target article sets out some of the arguments for both sides (arguments from computer vision, neuroscience, psychophysics, perceptual learning, and other areas of vision science) and defends the position that an important part of visual perception, corresponding to what some people have called early vision, is prohibited from accessing relevant expectations, knowledge, and utilities in determining the function it computes--in other words, it is cognitively impenetrable. That part of vision is complex and involves top-down interactions that are internal to the early vision system. Its function is to provide a structured representation of the 3-D surfaces of objects sufficient to serve as an index into memory, with somewhat different outputs being made available to other systems such as those dealing with motor control. The paper also addresses certain conceptual and methodological issues raised by this claim, such as whether signal detection theory and event-related potentials can be used to assess cognitive penetration of vision. A distinction is made among several stages in visual processing, including, in addition to the inflexible early-vision stage, a pre-perceptual attention-allocation stage and a post-perceptual evaluation, selection, and inference stage, which accesses long-term memory. These two stages provide the primary ways in which cognition can affect the outcome of visual perception. The paper discusses arguments from computer vision and psychology showing that vision is "intelligent" and involves elements of "problem solving." The cases of apparently intelligent interpretation sometimes cited in support of this claim do not show cognitive penetration; rather, they show that certain natural constraints on interpretation, concerned primarily with optical and geometrical properties of the world, have been compiled into the visual system. The paper also examines a number of examples where instructions and "hints" are alleged to affect what is seen. In each case it is concluded that the evidence is more readily assimilated to the view that when cognitive effects are found, they have a locus outside early vision, in such processes as the allocation of focal attention and the identification of the stimulus.

Agnosia↗
PubMed1981

Dissociations between language and cognition: cases and implications.

An important issue for the cognitive sciences is whether grammar is to any nontrivial extent an autonomous cognitive system. Current cognitive hypotheses of language acquisition would argue against an autonomous linguistic system and would support the notion that language emerges from more general cognitive knowledge and is throughout its development fundamentally tied to a nonlinguistic cognitive base. This paper explores this issue and presents data from case studies of children showing clear dissociations between language and nonlanguage cognitive abilities. The implications of such data are discussed. The major implications appear to be that lexical and relational semantic abilities are deeply linked to broader conceptual development but morphological and syntactic abilities are not. The development of a normal linguistic system, however, one in which grammar is systematically related to meaning, requires concurrent and concomitant linguistic and nonlingustic cognitive development.

Adolescent↗
PubMed2005

Species comparative studies and cognitive development.

The comparative study of infant development and animal cognition brings to cognitive science the promise of insights into the nature and origins of cognitive skills. In this article, I review a recent wave of comparative studies conducted with similar methodologies and similar theoretical frameworks on how two core components of human cognition--object permanence and gaze following--develop in different species. These comparative findings call for an integration of current competing accounts of developmental change. They further suggest that evolution has produced developmental devices capable at the same time of preserving core adaptive components, and opening themselves up to further adaptive change, not only in interaction with the external environment, but also in interaction with other co-developing cognitive systems.

Animals↗
PubMed1997

Basic Science Reasoning and Clinical Reasoning Intertwined: Epistemological Analysis and Consequences for Medical Education.

The aim of this paper is to emphasize the distinction between basic medical science (and reasoning) and clinical science (and reasoning) in order to illuminate some basic philosophical and cognitive issues in medical education. The Kunhian concept of exemplar refers to the field of growth of scientific knowledge and in this sense is related to the "anti-theoretical" emphasis on problem solving performance. In cognitive science this (and similar) types of postpositivistic objections to the formalistic excess of the neopositivistic tradition are exploited to stress the relevance of the distinction between theories and their domains of application. This objection is exploited to stress the difference between established bodies of scientific knowledge and their processes of discovery and/or application and, in medical knowledge, between clinical reasoning (situated, concerned with attributes of people) and basic science reasoning (unsituated, concerned with attributes of entities such as organs, bacteria, viruses). Exploiting the theoretical consequences of the previous analysis I will try to answer some questions: What is the role of problem solving in teaching and learning, as different from conventional basic science-centred education? Is it relevant, in medical education, an epistemological and logical awareness of the main methodological topics? Finally, the analysis of the significance of abduction in a unified epistemological model of medical reasoning is exploited to individuate the proper ontological level dealing with the entities and relationships belonging to the dynamism of the underlying domain knowledge (for instance biomedical physics) and the consequences for medical education.

Journal Article↗
PubMed2004

Early convergence research and education supported by the National Science Foundation.

The following pages describe research grants awarded by the National Science Foundation that illustrate how different fields of science and technology can converge in order to increase human potential. Technological convergence involves the unification of the sciences of Nanotechnology, Biotechnology, Information Technology, and new technologies based on Cognitive Science (NBIC). Because it supports research across all major branches of science and technology, including the social and behavioral sciences, the NSF has been a focus of discussions about converging technologies to enhance human capabilities and serve human needs.

Biomedical Enhancement↗
PubMed1980

The behavioral and social sciences.

In the social sciences, as in other sciences, progress is often placed by advances in observational techniques and instruments. This article reviews some of the recent technical progress in the social sciences ans then discusses three substantive frontier areas that are particularly exciting at present: evolutionary theory, especially in relation to sociobiology, the theory of human rational choice, and the newly christened discipline of cognitive science. All three claim to provide explanations for broad areas of human behavior.

Behavior↗
PubMed1998

Going, going, gone...? Implicit and explicit test of conceptual knowledge in a longitudinal study of semantic dementia.

Patients suffering from semantic dementia provide important constraints on theories of the structure and organisation of semantic memory. In this article we report one such patient, AM, whose progressive deterioration of semantics enables us to address the much-debated issue of whether conceptual structure is hierarchically organised. The hierarchical account predicts that brain damage should impair lower levels of the hierarchy (property information) before affecting higher level (category) information (Warrington and Shallice, Q. J. Exp. Psychol. 1975, 27, 635-657). We evaluate this prediction by repeated testing of AM in two studies--a semantic priming task and a verification task--over an 18 month period, contrasting the progressive deterioration of properties (functional and perceptual) and category relations (category co-ordinates and category labels). Properties were preserved longer than category information, arguing against a hierarchical account of semantic memory. In addition, functional properties were most robust to brain damage, supporting our claim that functional information plays a special role in semantic representations (Durrant-Peatfield et al., Proc. 19th Ann. Conf. of the Cognitive Science Society. Erlbaum, Mahwah, NJ, 1997. pp. 193-198. Tyler et al., Cognitive Neuropsychol. 1997, 14, 511-545).

Anomia↗
PubMed1985

Cognition and states of consciousness: the necessity for empirical study of ordinary and nonordinary consciousness for contemporary cognitive psychology.

Recent criticisms of the place and function of "consciousness" in "cognitive science" are considered and rejected. Contrary to current orthodoxy subjective experience during abstract cognitive activity, especially when placed in its natural series with phenomenal accounts of so-called "altered states of consciousness," can provide unique and crucial evidence concerning just that core of "semantics" which eludes the automatized "syntax" of computer simulation. The "noetic" aspect of extreme altered states can be placed in relation to introspective descriptions of "insight." Various altered state features--synaesthesias, geometric/mandala imagery, reorganizations of "perceptual" dimensions and enhanced "self-reference"--can be taken as direct "exteriorizations" of abstract symbolic processes as discussed by Neisser, Geschwind, Mead, and Arnheim. A genuine cognitive psychology cannot continue to ignore the qualitative-experiential bases of symbolization. More specifically, the sense that insight just comes to us as if from "outside," its preliminary microgenetic processes masked, does not show the failure of introspective phenomenology but rather offers a unique and positive clue to the imaginal dialogic structure of higher mental processes. Thinking, as one phase of imaginal "conversation," must be "sent" from the phenomenal "other" to an attenuated, receptive phenomenal "self." A reconsideration of the Würzburg controversy, adding closely related altered state phenomena to the transitional series between "impalpable awareness" and specific imagery, suggests that the normally masked processes underlying the "felt meaning" or "insight" state are most directly exteriorized as what Klüver termed "complex" or geometric-dynamic synaesthesias. Finally, a reinterpretation of classical introspectionism's "sensation" shows the "mechanism" by which the metaphorical/synaesthetic processes of cognition are generated. Titchener's "sensation" plays the crucial role in metaphor it so conspicuously lacked in functional perception.

Awareness↗
PubMed1994

[Relation between research and practice in analytic psychotherapy].

The technique of psychoanalytic treatment as an objective, operative-technological theory inevitably experiences a subjective refraction on analyst's personality and his or her own cognitive and interactional styles influencing therapeutic efficiency. Systematic clinical trials of treatment data integrating motions from psychoanalytic, social and cognitive science, reconcile the gap between research and practice, between basic science and application. It will be discussed how empirical research can delineate therapists' cognitive and perceptual skills and the process of transformation from declarative to procedural knowledge, further elaborated in reciprocal connection with practice. The models of Structural Analysis of Social Behavior (SASB) and Cyclic Maladaptive Pattern (CMP) are especially considered. We will also discuss the consequences for training in psychoanalysis.

Countertransference↗
PubMed2005

Experimenting with phenomenology.

We review the use of introspective and phenomenological methods in experimental settings. We distinguish different senses of introspection, and further distinguish phenomenological method from introspectionist approaches. Two ways of using phenomenology in experimental procedures are identified: first, the neurophenomenological method, proposed by Varela, involves the training of experimental subjects. This approach has been directly and productively incorporated into the protocol of experiments on perception. A second approach may have wider application and does not involve training experimental subjects in phenomenological method. It requires front-loading phenomenological insights into experimental design. A number of experiments employing this approach are reviewed. We conclude with a discussion of the implications for both the cognitive sciences and phenomenology.

Body Image↗
PubMed2005

Recharging cognition with DC brain polarization.

Electrical direct current (DC) has been applied to the human head throughout history for various reasons and with claims of behavioral effects and clinical benefits. This technique has recently been rediscovered and its effects validated with modern quantitative techniques and experimental designs. Despite the very weak current used, DC polarization applied to specific brain areas can alter verbal fluency, motor learning and perceptual thresholds, and can be used in conjunction with transcranial magnetic stimulation. Compact and safe, this old technique seems poised to allow major advances cognitive science and therapy.

Cerebral Cortex↗
PubMed2003

The cognitive revolution: a historical perspective.

Cognitive science is a child of the 1950s, the product of a time when psychology, anthropology and linguistics were redefining themselves and computer science and neuroscience as disciplines were coming into existence. Psychology could not participate in the cognitive revolution until it had freed itself from behaviorism, thus restoring cognition to scientific respectability. By then, it was becoming clear in several disciplines that the solution to some of their problems depended crucially on solving problems traditionally allocated to other disciplines. Collaboration was called for: this is a personal account of how it came about.

Journal Article↗
PubMedDate not supplied

Constraint-based therapies as a proposed model for cognitive rehabilitation.

This article proposes that constraint-induced therapy represents a theoretical model of rehabilitation emerging from basic research with implications for cognitive remediation attempts. It provides an overview of current work on constraint-induced therapies with a focus on the most widely used of these techniques, constraint-induced movement therapy (CIMT). An example from recent research in the cognitive sciences demonstrates how underlying principles of the CIMT could be used to guide rehabilitative efforts for cognitive dysfunction. Limitations and obstacles of applying such an approach are discussed.

Animals↗