Identifying objects from a haptic glance

Subjects identified common objects under conditions of a “haptic glance,” a brief haptic exposure that placed severe spatial and temporal constraints on stimulus processing. They received no advance cue, a superordinate-level name as cue, or a superordinate and basic-level name as cue. The objects varied in size relative to the fingertip and in the most diagnostic attribute, either texture or shape. The data suggest that object recognition can occur when global volumetric primitives cannot directly be extracted. Even with no cue, confusion errors resembled the target object and indicated extraction of material and local shape information, which was sufficient to provide accuracy above 20%. Performance improved with cuing, and the effect of exposure duration was observed primarily with minimal cuing, indicating compensatory effects of top-down processing.     

Assessing auditory distance perception using perceptually directed action

Three experiments investigated auditory distance perception under natural listening conditions in a large open field. Targets varied in egocentric distance from 3 to 16 m. By presenting visual targets at these same locations on other trials, we were able to compare visual and auditory distance perception under similar circumstances. In some experimental conditions, observers made verbal reports of target distance. In others, observers viewed or listened to the target and then, without further perceptual information about the target, attempted to face the target, walk directly to it, or walk along a two-segment indirect path to it. The primary results were these. First, the verbal and walking responses were largely concordant, with the walking responses exhibiting less between-observer variability. Second, different motoric responses provided consistent estimates of the perceived target locations and, therefore, of the initially perceived distances. Third, under circumstances for which visual targets were perceived more or less correctly in distance using the more precise walking response, auditory targets were generally perceived with considerable systematic error. In particular, the perceived locations of the auditory targets varied only about half as much in distance as did the physical targets; in addition, there was a tendency to underestimate target distance, except for the closest targets.     

Health Risk Behaviors and Their Relationships to Health Care Utilization Among Veterans Receiving Primary Medical Care

This paper reports the findings of a behavioral health risk screening form and examines the interrelationships among behavioral risk factors and health care utilization. Participants were 1,000 veterans who completed a brief self-report questionnaire assessing affective distress and behavioral health risk factors while they waited to see their primary care provider. Participants reported a mean level of affective distress in the mild range on a scale of 0 to 20 (M = 6.4, SD = 4.95), and 22.4% reported moderate or high levels of affective distress. Fifty percent of the sample denied alcohol use; 5% of the men and none of the women reported a pattern of use that met established criteria for at-risk drinking. Twenty-six percent of the sample reported current tobacco use, 45% acknowledged concerns about diet and/or weight, and 54% reported concern about pain. These factors were largely significantly intercorrelated and several were related to indices of health care utilization. It was concluded that veterans receiving health care in primary care settings report significant levels of affective distress and other health risk behaviors and that the presence of these factors is associated with increased use of the health care system. These data encourage increased efforts to identify these factors and to develop behavior change interventions.     

USE OF TEXTURE FADING IN THE TREATMENT OF FOOD SELECTIVITY

Children with feeding disorders often display severe food selectivity. For many of these children, consuming highly textured foods may be aversive or potentially dangerous because of frequent gagging. The purpose of this study was to demonstrate the efficacy of texture fading in the treatment of food selectivity displayed by 4 children. Treatment involved the gradual addition of higher textures based on the results of periodic probes. In addition, food acceptance and swallowing were reinforced, while food refusal and food expulsion were placed on extinction. Results showed that all participants successfully advanced to consumption of age-appropriate texture and volume. The results suggest that texture fading with intermittent probes at higher textures may be an effective method for the treatment of food selectivity by texture.     

Stages of manual exploration in haptic object identification

In a yes/no identification task using touch alone, subjects indicated whether an object belonged to a named category. Previously, we found that subjects explored in two stages—first grasping and lifting the object, then executing further exploratory procedures (Lederman & Klatzky, 1990b). We proposed that Stage 1 (grasp/lift) was sufficient to extract coarse information about multiple object properties, whereas Stage 2 was directed toward precise information about particularly diagnostic properties. the current study, subjects were initially constrained to grasping and lifting, after which they could explore further. Accuracy was above chance after Stage 1, confirming our assumption that the grasp/lift combination was broadly useful. Stage 2 increased accuracy and confidence. It primarily elicited exploratory procedures associated with object geometry, but exploration was also influenced by diagnostic object properties.     

Models of arithmetic fact retrieval: an evaluation in light of findings from normal and brain-damaged subjects.

Retrieval of basic arithmetic facts is a central aspect of almost any arithmetic performance. Furthermore, the arithmetic facts provide an opportunity to study memory processes in the context of a naturally occurring but circumscribed set of facts. This article examines current models of arithmetic fact retrieval in light of previously reported data from normal subjects, as well as the results from brain-damaged patients reported by Sokol, McCloskey, Cohen, and Aliminosa (1991) in the preceding article. The discussion serves to delineate the strengths and limitations of the models and, more generally, to identify important theoretical and empirical issues in the study of arithmetic fact retrieval.     

The Coexistence of Primitive Rage in Therapy: A Four-Year-Old Girl, Her Parents, and the Therapist

This article will address the development and expression of rage between a four-year old girl and her parents as well as its manifestation in a therapy session. Intrapsychic and interpersonal causes of rage will be postulated for the child and the parents. The mutual experience of rage, which is shared and contributed to by the child and the parents, will be examined. Attention will also be given to the transferential aspects of the patient's rage and the countertransferential aspects of the therapist's rage reactions. Finally, strategies for neutralizing rage will be discussed.     

Forms of Competitive Attitude and Achievement Orientation in Relation to Disordered Eating

The primary focus in this study was anexamination of the differential contributions of twodifferent forms of competitive attitude to disorderedeating in a nonclinical sample of Caucasian universitywomen. The results showed that it is not competitionper se that is a primary contributor to eatingdisorders, but rather a particular form of competitiveattitude. Specifically, hypercompetitiveness was related strongly to eating disorder symptoms, butpersonal development competitiveness was unrelated. Asecond purpose considered the relationship ofcontext-specific measures of achievement to eatingdisorder symptoms. Disordered eating was associatedpositively with the need to achieve in appearance, butnot to a need to achieve in academics and career.Discussion centered on the potential usefulness of these findings in the treatment of women who areeating disordered. It also argued for changes in asocialization process which often leads to thedevelopment of hypercompetitive attitudes and anovervaluing of beauty in American women.     

making the case: demonstrating the impact of career and employment services

Career development practitioners understand that the value of career and employment services extends beyond attachment to the labor market. However, “soft” outcomes such as increased self‐efficacy and improved ability to manage transitions are difficult to measure. Convincing funders and policy makers of the significance of such outcomes may be challenging; consequently, important interventions may not be mandated or funded. In this article, the importance of effective program evaluation is highlighted, limitations of current evaluation models are identified, and a draft evaluation framework that facilitates tracking long‐term impacts of career and employment services is applied to critique a government‐commissioned summative evaluation report.