Intelligence and school phobia

Although the notion is widespread that school phobics are generally brighter than average, data to support this notion have never been collected systematically. Evidence from this study suggests that if the sample size is large and if economic barriers to treatment are not present, one finds that intelligence is distributed among school phobics as it is distributed in the general population. Implications for practice and research are discussed.     

Conceptualizing adult development

On the premise that human development is a lifelong process, and with awareness of certain limitations of the stage model, the authors conceptualize a new model based on developmental process. This model is offered as a basic model for the development of mental functions and structures in both childhood and adulthood.     

Cardiac and neuroendocrine responses to exposure therapy in height phobics: desynchrony within the 'physiological response system'

Subjective, behavioral, cardiovascular and neuroendocrine responses were intensively monitored in two height phobics over a full course of exposure therapy and at follow-up. Both subjects showed rising cortisol responses and stable, non-extinguishing norepinephrine responses to height exposure over the course of treatment, while improvement occurred in subjective and behavioral response systems. They had differing heart rate responses. Despite desynchrony amongst anxiety response systems and within the physiological 'system' at treatment conclusion, both subjects had successful outcomes which were preserved at follow-up. Implications for the measurement of the 'physiological response system' in behavioral research are discussed.     

GAUTHIER'S ETHICS AND EXTRA-RATIONAL VALUES: A COMMENT ON DEMARCO

While the preponderance of recent literature on David Gauthier's Morals by Agreement has focused on his theory of bargaining,¹ Joseph DeMarco calls into question the foundation of Gauthier's project.² DeMarco argues that Gauthier's project depends on the incorporation of extra-rational values, thereby undermining his attempt to derive morality from the non-moral premises of rational choice. On DeMarco's account, there are at least three points where Gauthier depends on extra-rational values. DeMarco finds the first two of these points problematic because he misunderstands Gauthier's theory of rational choice. The third point is more serious; Gauthier does not offer an apparatus sufficient to respond to DeMarco's charge. To disarm DeMarco's third objection, I shall offer a justification of the rationality of autonomous preference formation.     

Learned helplessness: Not dependent upon cognitions, attributions, or other such phenomenal experiences

Subjects shot a light gun at a target with a photorecepter cell in the bull's-eye, with the only information regarding their accuracy being provided by reinforcing tone signals. Half the subjects received reinforcers contingent upon their hits. The others were yoked to the contingent subjects, receiving non-contingent reinforcers in the same patterns. Experiment 1 compared contingent or noncontingent positive or aversive reinforcers in their effect on subsequent anagrams performance. Phenomenal experiences, such as cognitive awareness, attributions, and moods, were assessed. Subjects exhibited a strong helplessness effect independent of their phenomenal experiences. In Experiment 2 the independent variables of contingent/noncontingent reinforcement and awareness of noncontingency were manipulated orthogonally by informing half the subjects that their reinforcement had been noncontingent in the target-shooting. Actual noncontingency produced a strong helplessness effect whereas “awareness of noncontingency” did not.     

Semantic context effects in visual word recognition: An analysis of semantic strategies

Using a procedure that isolates the facilitatory and interfering effects of a semantic context, the present study examines two distinct patterns of context effects. One pattern shows a dominance of facilitation for target words in a related context, and the other pattern shows a dominance of interference for target words in an unrelated context. The controlling factor seems to be the overall characteristics of the stimulus list. For materials that include semantic relationships that are consistent in the strength of the relationships, facilitation dominance obtains. For materials that include a wide range of semantic relationship strengths, interference dominance results. These two patterns of facilitation and interference are attributed to two semantic strategies available to subjects for using context information. The explication of the strategies includes a theoretical treatment of the present data.     

Ordinal properties of perceived average duration: simultaneous and sequential presentations

When a subject evaluates the duration of two simultaneous events, the perceived durations are combined in a nonlinear manner, whereas comparable evaluations of successive events yield linear combinations. Fifty-four subjects rated average durations of pairs of time intervals ranging from 0.5 s to 10.0 s. The intervals making up a pair were presented successively and simultaneously on separate occasions within the same presentation sequence. The order of data was consistent with models previously proposed for perceived average duration. A nonmetric analysis of the combined ordinal data from both conditions yielded a single set of measures of perceived duration with ratio-scale properties. The common scale for the two conditions is consistent with differences in results from simultaneous and successive monitoring of time intervals, stemming from differences in the way duration information is combined rather than how it is perceived. the derived scale is related to physical time by a power function with a 1.06 exponent.