Existence,presupposition and anaphoric space

The following paper deals with the notion of existence, especially as concerns natural languages. In Section 1, starting from some quite obvious examples drawn from logic, I sketch the problem of the existential presupposition usually ascribed to noun phrases. My opinion is that the point of view frequently adopted in this case is unduly restrictive, for the existence which is believed to be presupposed here is actual existence. Accordingly, I emphasize the need for having a weaker notion of existential presupposition, such that the existence (if this word can still be used) here referred to is relevant only to linguistic goals. Section 2 sketches this notion, by assimilating existence (in the weak sense) to identification in a linguistic space. (I deal here only with intuitive considerations: a more formal account will be given, I hope, in another paper.) Finally, in Section 3, the notion of actual existence is examined by contrast with the linguistic (or weak) notion of existence: and this is a question which of course can't be tackled in terms of a purely linguistic analysis, for it needs a general, epistemo-logical approach.     

Visual acuity improvement following fading and feedback training—II. Relationship to changes in refractive error

The present study evaluated the effects of behavioral training on visual acuity and refractive error in myopic adults. Twenty volunteers were matched on the basis of refractive error and one member of each matched pair was randomly assigned to either Fading and Feedback training or a no-treatment control condition. Visual acuity was measured with both recognition and resolution measures. Refractive error was measured subjectively using the LaserSpec optometer, and objectively by two retinoscopic examinations performed by an ophthalmologist with and without cycloplegia. The results indicated significant increases in recognition visual acuity, but not resolution visual acuity for trained subjects compared to the no-treatment controls. Trained subjects did not show improvement in refractive error on any measure, and refractive error changes were not correlated with changes in either measure of visual acuity. These data suggest that the visual acuity improvements typically found with behavioral training are not associated with changes in refractive error.     

Sound-induced seizure: asymmetries exhibited are related to the latency of seizure onset

Audiogenic seizures of SJL/J mice sensitized before 3 weeks of age were found to be of two distinct types. Seizures with short latencies to onset were without clear asymmetries of either run or fall direction, whereas seizures occurring after a longer latency were characterized by asymmetries of both of these behaviors.     

Personal involvement and the evaluation of group products

This research examined favouritism in group product evaluations as a function of personal involvement. After being divided into groups on an arbitrary basis, subjects worked at a group brainstorming task. Some subjects then assessed the merits of their own group's product relative to that of an outgroup's product, whereas other subjects assessed the merits of an ingroup's product relative to that of an outgroup's product. In both conditions, a significant bias was observed such that owngroup and ingroup products were rated as superior to outgroup products. Moreover, this bias was equally strong regardless of whether subjects were appraising a product they had personally helped create. The implications of the findings for understanding the antecedents of group bias are considered.     

Keeping the therapist alive

This article focuses on ways in which therapists can mamtain vitality in their work with people. Becoming more aware of personal dynamics, particularly of the need for control and power, is essential. To remain open to new theories and approaches avoids the pitfall of professional encapsulation. Experiencing the client as a person not only facilitates empathy but involves therapists in the growth process as well. Developing a tragic awareness of life enables therapists to maintain a sense of awe, wonder, and grace toward the human predicament, thus bringing depth or spirituality to their work.He is also editor of TheHarding Journal of Religion and Psychiatry.     

Exploring environments by hand or foot: time-based heuristics for encoding distance in movement space

In Experiment 1, blindfolded observers judged (a) the distance of pathways felt by hand and (b) the straight-line distance between pathway endpoints inferred from such exploration. In Experiment 2, blindfolded observers made corresponding estimates after traversing similar pathways on foot. Pathways were explored under three different speeds. Under both manipulatory and ambulatory exploration, there was substantial length distortion of inferred distance: The straight-line distance was increasingly overestimated with increases in the length of the explored pathway. With manipulatory exploration, slower movements increased length distortion, but duration effects proved secondary to effects of spatial extent. For ambulatory exploration, no duration effects were obtained. Observers used time-independent heuristics, that is, a footstep metric for estimating the pathway actually travelled and a spatial imaging strategy for estimating the inferred line between pathway endpoints. The studies establish length distortion as a general phenomenon in movement space and identify its major causes as spatial rather than temporal.     

Preparing the Way For a Feminist Praxis

Simone de Beauvoir in The Second Sex identifies the philosophical vantage point from which she will survey the situation of women as existentialist. The ways in which she must later compromise that committment to theory in order to remain true to her feminist insights foreshadow recent developments in feminist ethics and epistemology.     

Double-blind and triple-blind assessments of medication and placebo responses in hyperactive children

Hyperactive boys taking psychostimulant medication were studied using a randomized, placebo-controlled, crossover design. Behavior ratings and medication guesstimates were obtained for the boys when they were given methylphenidate (Ritalin) and when they were given a placebo. The ratings showed positive medication-related changes, and the guesses, done by independent judges, were significantly better than chance. The pattern of ratings for double-blind and triple-blind raters was identical. These results imply that positive psychostimulant effects are not attributable to rater sensitization or expectancy. The medication-placebo differences were highly reliable for the group comparisons and were in the predicted direction for 21 of 22 individuals, but the magnitude of the change for many individuals was not dramatic. Implications for child psychopharmacology research and differences between clinical and experimental significance are discussed.This research program was supported by NIMH grant MH 29475. Medications and matching placebos were supplied by CIBA. The authors appreciate the assistance of Howard Adelman and the staff of Fernald School, where the program was housed. We also appreciate the devotion of the entire research staff and the technical assistance of Doris Finck, Sharon Dotemoto, Joy Stapp, and George Mount.     

The relative accessibility of semantic and deep-structure syntactic concepts

Three experiments were conducted to determine the relative accessibility of semantic and deep-structure syntactic concepts. In Experiment 1, which employed a concept-formation task, subjects learned the concept “deep-structure subject” more slowly than the case concept “experiencer.” In Experiments 2 and 3, which employed a new recognition memory procedure, subjects performed more poorly when the sentences to be remembered were differentiated on the basis of deep-structure syntactic relations than when they were differentiated on the basis of semantic relations. These results favor Fillmore’s case grammar, or another semantically based theory, rather than the “standard theory” of Chomsky in a model of linguistic behavior.     

Assessing self-report of pain: A comparison of two recording procedures

Intensive vs. reduced demand self-monitored pain levels were compared in nine pain patients. Each patient self-monitored pain intensity on a 6-point scale every 2 hr. Overall, daily mean and maximum pain levels were calculated for each patient (1) across all intervals (intensive self-monitoring) and (2) four times per day, at meal times and bedtime (reduced-demand self-monitoring). Differences were found to be negligible. The reduced-demand procedure produced data that were closely representative of pain fluctuations indicated in the more intensive bihourly ratings. Results are discussed in terms of the representativeness and standardization in pain self-monitoring as well as possible enhancement of recording compliance through the use of the less demanding four times per day procedure.Portions of these data were presented at the meeting of the Association for Behavior Analysis, Dearborn, June 1979.