Why Pains Are Not Mental Objects

Philosophical Studies -     

First-Pass versus Second-Pass Parsing Processes in a Wernicke''s and a Broca''s Aphasic: Electrophysiological Evidence for a Double Dissociation

The present paper is a first attempt to integrate the classical brain lesion behavioral impairment approach of functional neuroanatomy and the electrophysiological brain mapping approach in the domain of syntactic processing. In a group of normal age-matched controls we identified three electrophysiological components previously observed in correlation with language comprehension processes: an early left anterior negativity normally seen in correlation with syntactic first-pass parsing processes (ELAN), a centroparietal negativity seen in correlation with processes of lexical-semantic integration (N400), and a late centroparietal positivity observed in correlation with secondary syntactic processes of reanalysis and repair (P600). The early left anterior negativity was absent in a patient with an extended lesion in the anterior part of the left hemisphere sparing the temporal lobe, although the late centroparietal positivity and the centroparietal N400 were present. In a patient with a left temporal-parietal lesion the early left anterior negativity was found to be present, whereas the N400 component was absent. These findings suggest that first-pass parsing and secondary processes are subserved by distinct brain systems.     

Social science in school finance court cases

Most states in the U.S. have experienced litigation concerning the constitutionality of their school finance systems. I examine the potential role of social science in affecting the outcomes of these cases. The text of the decisions of recent cases is examined to see to what extent social science appears to influence the courts. While the potential use of social science is large, its actual use is idiosyncratic. Where its use is apparent, however, it is difficult to confidently conclude that it affected the court’s decision. Other factors could have been determinative and social science might have been used only to buttress the court’s decision.     

Disciplinary roots and branches of evaluation: Some lessons from agricultural research

Since its origins in North America in the 1960s, the field of program evaluation has grown considerably, and its concerns have broadened from accountability to program improvement, decision support, and institutional learning. Program evaluation is now commonly practiced in governmental organizations not only in North America but also in many countries of Western Europe and Oceania. Although program evaluation is a relatively new field with many controversies and lively debates, a unifying body of evaluation theory, methods, and standards is gradually emerging. Evaluation has recently been described as a “transdiscipline,” as are statistics and measurement. This article is based largely on my personal experiences working in agricultural research organizations in developing regions. Here, a number of different types of evaluation are carried out, but program evaluation as defined by Patton (1997) and as practiced by social scientists to assess public programs is largely unknown. Distinct branches of agricultural research evaluation can be identified, with disciplinary roots in the natural sciences and in agricultural economics. The most rigorous agricultural research evaluations are economic studies. Systematic internal evaluation is notably lacking. Current pressures to improve performance, transparency, and accountability are creating demands for more systematic evaluation, and many program evaluation concepts and methods would seem to be of value in agricultural research organizations. However, in the current scenario of declining funding for agricultural research, managers are yet to be convinced to expand their evaluation activities and explore unfamiliar paradigms and methods. Moreover, they are not yet convinced that social-science-based program evaluation would produce useful results. Natural scientists and economists tend to view program evaluation as “soft-science” or no science at all. Douglas Horton works at the International Service for National Agricultural Research (ISNAR) in The Netherlands. Since joining ISNAR in early 1990, he has done research, training, and advisory work on agricultural research management, with an emphasis on evaluation. Previously, for fifteen years, Horton was head of the social science department of the International Potato Center (CIP) in Peru. With colleagues at CIP and in national agricultural research organizations, he documented patterns and trends in world potato production and use, engaged in participatory technology development and assessed the impact of CIP programs. Horton received B.S. and M.S. degrees in agricultural economics from the University of Illinois, and a Ph.D. in economics from Cornell University. While at Cornell, Horton worked with W.F. Whyte, pioneer in the fields of participant observation and participatory action research.     

The preparation of counsellors in Europe: Possible solutions for an impossible task?

The growth of counselling and psychotherapy presents trainers in Europe with significant opportunities. But these need to take account of human development over the millenia, harnessing ancient psychology to the resolution of contemporary problems. In particular, there is a need for contextual counselling, beating practice in culture. Extrapolating from UK data, a minimum practitioner requirement for Europe could be 50,000-75,000 counsellors. With only minimal training programmes in many European countries, meeting the seven core criteria of training seems impossible. One possible solution is to cluster people with limited training around a high-standard professional counsellor—a system used in the UK for situation-specific counselling. A number of European states are now seeking to develop a counselling capability. Training for this should break new ground by learning from older systems but also being unafraid to adopt novel solutions.     

Psychological Adjustment and Coping Styles of Urban African American High School Students

In a study of African American (n = 208) urban high school students, grade point average (GPA) and specific strategies for coping with day-to-day stressors were found to be significantly related to psychological adjustment. Students who had higher GPAs tended to use family members as a means of solving problems, minimized problems by the use of humor, and used relaxation activities less often were found to have the most positive psychological adjustment, as measured by the index score of the Affects Balance Scale (ABS). Reported negative affect was not found to be significantly influenced by coping style, whereas positive affect was.     

The use and abuse of touch in therapy and counselling

Sexual exploitation within therapy is founded upon inappropriate physical contact. Yet the use of touch in therapy remains a contentious issue. Some therapists purport that touch is a primary source of communication of which many clients, as children, were deprived. They argue that refraining from the appropriate use of touch in the counselling situation can be damaging to the client. This article considers the argument for the use of physical contact in therapy and counselling and its potential therapeutic value.     

Never cross the path of a traveling salesman: The neural network generation of Halstead-Reitan trail making tests

The Halstead-Reitan Trail Making Test (TMT) is one of the most widely used neuropsychological instruments for the assessment of brain damage. Despite its usefulness, however, the TMT has two major disadvantages. It has not been constructed in a principled manner that would facilitate systematic investigation, and there is no established procedure for generating equivalent, but stochastically different, test forms. The reason is that the generation of self-avoiding TMT pathways resembles the finding of near-optimal solutions to the Euclidean Traveling Salesman Problem (TSP) and constitutes a computational problem that is NP-complete. This article describes a practical approach to the problem of generating stochastically different test forms. This approach employs anelastic net neural network to generate TMT forms based on self-avoiding, near-optimal paths, and closed circuits. The usefulness and limitations of this solution are discussed briefly in relation to alternative and complementary problems and procedures.     

Evocation and characterization of percepts of apparent motion on the face

The percepts evoked by sequential stimulation of sites in close spatial proximity (<2.5 cm) on the face were studied. Both method-of-limits and magnitude-estimation procedures were used to identify and characterize alterations in the percepts produced by systematic changes in the temporal and spatial parameters of the sequence. Each site was stimulated by a vertically oriented row of miniature vibrating probes. Apparent motion was consistently perceived when the delay between the onsets of sequentially activated rows (interstimulus onset interval, or ISOI) fell within a relatively narrow range of values, the lower limit of which approximated 5 msec. Both the upper limit and the perceived smoothness and continuity of the motion percepts (goodness of motion) increased with the duration for which each row stimulated the skin over the range evaluated, 15–185 msec. For the successive activation of only two rows, goodness of motion was not influenced by changes in their separation from 0.4 to 2.5 cm. The ISOI values at which magnitude estimates of goodness of motion were highest increased with the duration for which each row stimulated the skin. As such, maximum goodness of motion decreased with increases in the apparent velocity of motion. When the number of sequentially activated rows was increased from two to four or more, the quality of the motion percepts improved. For the successive activation of multiple closely spaced rows, values of ISOI at which numerical estimates of goodness of motion were highest approximated integral fractions of the duration for which each row stimulated the skin. In this situation, the probes rose and fell in a regular, step-locked rhythm to simulate an edge-like or rectangular object moving across the skin. The goodness of motion so attained was relatively independent of the apparent velocity of motion.