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PubMed1994

A dissociation between reaction time to sinusoidal gratings and temporal-order judgment.

The effect of the spatial frequency (SF) of visual gratings on reaction time (RT) and temporal-order judgment (TOJ) was examined in three experiments. In experiment 1 the visual stimuli were vertical sinusoidal gratings with SFs between 2 and 8 cycles deg-1 and the comparison stimulus in the TOJ task was a 2300 Hz tone. Whereas SF had a highly significant effect on RT, it left TOJ completely unaffected. To test whether this dissociation was due to the sharp (high SF) horizontal edges of the gratings, a second experiment was carried out with circular stimuli with no sharp edges. These stimuli did produce an effect of SF on TOJ, but it was significantly smaller than was the effect on RT. In experiment 3 we confirmed that this difference was not due to differences in grating orientation between the first two experiments. These findings (a) solve discrepancies between findings reported in the literature and (b) strongly suggest that RT and TOJ cannot be regarded as converging operations for determining 'visual latency'. This dissociation can best be accounted for by assuming that the output of early stimulus analysis can feed directly into the motor system (direct parameter specification), whereas the conscious representation that is used for TOJ is based on later integrative processes.

Adult↗
PubMed1998

Sexual ethics and communal judgments: on the pluralism of virtues, values, and practices.

Different judgments by Christian communities on issues in sexual ethics involve different weightings of various sources of moral authority, different understandings of the normativity of the natural, and different assessments of the scope of freedom to be exercised in relation to the goods of marriage. These fundamental differences of interpretation can be exemplified by the ongoing Roman Catholic discussion of the legitimacy of voluntary sterilization in certain "hard cases." The contributors to this issue of Christian Bioethics, in their spirited exchange on that issue, exemplify the need for careful attention to the ways that differences of theological emphasis and moral method lead to different judgements in particular cases, both within and between particular Christian communities.

Catholicism↗
PubMed1998

Normative data for equivalent, parallel forms of the Judgment of Line Orientation Test.

The Judgment of Line Orientation Test (JLO; Benton, Hamsher, Varney, & Spreen, 1983) permits assessment of visuospatial processing without making demands on motor skills. However, its administration can be time-intensive and frustrating for patients, particularly when used in a geriatric population. We present a single set of normative data to be used for both the odd-item and even-item forms derived from Form V of the JLO based on responses from a healthy geriatric sample. Mean scores and distributions of odd-item and even-item forms were nearly identical, and both forms showed significant correlations with the Developmental Test of Visual- Motor Integration. Cross-validation using the odd form of the JLO on an independent sample from a different geographic location suggested good generalizability of the normative data. We conclude that these JLO short-form normative data may be used in clinical screening situations or when serial assessments are needed.

Aged↗
PubMed1993

Face recognition as a function of judgments of likability/unlikability.

The relationship between face recognition and likability was investigated in three experiments. Subjects were asked to rate the likability of faces presented to them and then were tested on their ability to recognize the same faces. In Experiments 1 and 2, we used the subjects' individual ratings of likability to form idiocentric groups of faces (two groups, likable/unlikable, Experiment 1; three groups, likable/neutral/unlikable, Experiment 2). In Experiment 1, likable faces were found to be recognized more readily than were faces less likable. Experiment 2 revealed that the faces judged least likable were significantly less well remembered than neutral or more likable faces. In Experiment 3, a group mean for each face's likability was determined, and the faces were divided into quartiles according to the group mean scores. Again, the subjects' recognition responses for unlikable faces were at a lower level than for faces rated higher in likability. Experiments 2 and 3 found no difference in recognition memory between neutral and more likable faces. The results confirmed the notion that likability judgments (emotionality) play a mediating role in recognition.

Adult↗
PubMed2001

Interactive effects of characteristics of defendant and mock juror on U.S. participants' judgment and sentencing recommendations.

The authors examined the effects of interactions (a) between defendant attractiveness and juror gender and (b) between defendant race and juror race on judgment and sentencing among 207 Black, Hispanic, and White participants in the United States. After reading a vehicular-homicide vignette in which the defendant's attractiveness and race varied, the participants rated guilt and recommended sentences. The women treated the unattractive female defendant more harshly than they treated the attractive female defendant; the men showed an opposite tendency. The Black participants showed greater leniency when the defendant was described as Black rather than White. The Hispanic participants showed an opposite trend, and the White participants showed no race-based leniency. The findings on racial effects were consistent (a) with in-group favorability bias among the Black participants and (b) with attribution effects unrelated to race among the White participants.

Adult↗
PubMed1996

Short-form alternatives to the Judgment of Line Orientation Test.

The Judgment of Line Orientation Test (JLO; Benton, Hamsher, Varney, & Spreen, 1983) is frequently used as a motor-free method of evaluating visuospatial processing but can be time-consuming to administer. We investigated the internal consistency, validity, and utility of two parallel JLO short forms in a mixed clinical sample of 386 patients. Mean scores were equivalent, and correlational analyses supported the internal consistency and validity of both short forms. When compared to the standard JLO, the odd- and even-item short forms demonstrated good sensitivity, specificity, overall hit rate and predicted positive and negative accuracy. We conclude that the JLO short forms possess sufficient internal consistency, validity, and utility for serial assessment in research studies. The JLO short forms may potentially be used in clinical screening situations by applying a single cut-off score to differentiate levels of performance. However, more detailed clinical use of these JLO short forms will necessitate collection of normative data in order to generate accurate percentile rankings.

Adolescent↗
PubMed2000

Alterations in bilateral force judgment following strenuous eccentric exercise.

This study investigated the effects of strenuous eccentric exercise on bilateral force-matching ability. After unilaterally performing 50 maximal eccentric elbow actions, participants were evaluated for bilateral force-matching ability. Participants were asked to match a reference force held by the control (CNT) arm with their exercised (EXD) arm. The experimental condition was then reversed. Constant error (bias) of the EXD arm was increased through 5 days postexercise, when it underestimated the CNT force in all trials. In contrast, an overestimation of the EXD force by the CNT arm resulted in an increased constant and variable error (variability around the bias) through 5 days postexercise, when the EXD arm served as the force reference. Strenuous eccentric exercise severely compromises bilateral force-matching ability, regardless of whether the EXD attempted to match the reference force or served as the force reference, indicating central or peripheral alterations to force judgment.

Adult↗
PubMedDate not supplied

Young and older adults' metaphor interpretation: the judgments of professionals and nonprofessionals.

Thirty young and 30 older adults provided interpretations for eight metaphors presented in written form. In Part A of the study, five experienced English teachers rated all interpretations (blind with regard to age of respondent) on a 7-point scale anchored with the terms "literal" and "poetic". The professionals' ratings were no different for the young and older adult subjects' responses, suggesting maintenance with age of this ability. In Part B of the study, 16 young and 16 older adult nonprofessionals rated a statistically representative subset of the metaphor interpretations (again, blind with regard to age of respondent). Their 7-point rating scale was anchored with the global terms "very poor" and "excellent". There was no overall difference in young and older nonprofessional adults' judgments. However, there was a Rater Age x Respondent Age interaction. The older nonprofessionals gave equivalent ratings to the metaphor interpretations of young and older adult respondents. The young nonprofessionals assigned significantly higher ratings to the young respondents' metaphor interpretations than to the older respondents' metaphor interpretations.

Adult↗
PubMed2001

Liability of commercial and social hosts for alcohol-related injuries: a national survey of accountability norms and judgments.

Legal standards for liability of commercial sellers and social providers of alcoholic beverages are affected by social norms concerning accountability and responsibility. Using a nationwide probability sample telephone survey of 7,021 U.S. residents, we conducted a randomized experiment in which each subject was asked to respond to multiple vignettes. The vignettes told stories of drinking situations, systematically varying dimensions concerning age of drinker, commercial versus social settings, amount of alcohol consumed, history of previous behavior, and seriousness of damage or injury following drinking. Analyses involved linear mixed (i.e., random effects) model regressions, using responses to vignettes as the outcome variable, controlling for a series of sociodemographic, behavioral, and attitudinal measures. Results showed that age of drinker (young), setting (bar), and previous behavior (history of irresponsibility) were most strongly associated with harsher judgments of civil liability. Citizens' multiple standards for assigning legal liability and implications for public policy are discussed.

Journal Article↗
PubMed1995

Weight judgment. The discrimination capacity of a deafferented subject.

A weight discrimination study was undertaken to test (i) the capacity of controls and a deafferented subject (deprived of large sensory myelinated fibres from nose down), to discriminate weights with and without vision; (ii) the capacities of observers to discriminate weights while watching the deafferented and control subjects' lifting movements; (iii) the contribution of supplementary sources of sensory information (e.g. vestibular afferents) to the deafferented subject's discrimination capacity. With vision, G.L.'s liminal discrimination of weights was similar to that of the controls. In contrast, precluding vision impaired massively, but not completely, G.L.'s discrimination capacity, so emphasizing the importance of visual kinaesthetic cues in G.L. and incidently the importance of large myelinated sensory function in weight discrimination in controls. Kinematics recordings of G.L.'s lifting movements with vision revealed a significant correlation between weight and peak velocity of the lifting movement. This reflects a specific strategy used by G.L. to generate movements, allowing her to judge the weight of a lifted object visually. Peak velocity rather than amplitude of movement appears to be the main cue for G.L. since there was a lack of correlation between amplitude and weight lifted. For controls, none of the correlations (weight versus amplitude or weight versus velocity) was significant, whether vision was available or not. When watching G.L.'s lifting performance, external observers were able to use similar cues to establish their judgments, but they were far less accurate in doing so when watching control subjects. This suggests that controls were using a strategy different from G.L.'s.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed2000

Theory of Mind: Deaf and Hearing Children's Comprehension of Picture Stories and Judgments of Social Situations.

We compared 20 prelingually profoundly deaf adolescents (age: 11-16 years) and 20 matched, hearing adolescents on a picture-sequencing task and on a social judgment test. In addition, we also tested 14 younger deaf children (age: 6-10 years) and compared their data with those from 20 hearing peers as well as those from the older deaf participants on the picture-sequencing task. The results from this study did not provide evidence for the hypothesis that deaf adolescents possess significantly poorer knowledge about social reasoning than age-matched hearing peers, but it did present further additional support for Peterson and Siegal's (1995) conversational hypothesis: a proposal that a deprivation in conversations about mental states leads to an impairment in the development of an awareness of mental states in the younger deaf children.

Journal Article↗
PubMed1991

Capturing and clustering women's judgment policies: the case of hormonal therapy for menopause.

Two hundred sixty-five women estimated the likelihood that they would take estrogen plus progestin to alleviate menopausal symptoms when faced with hypothetical cases varying in degree of hot flashes and risk of osteoporosis and cancer. Clustering of their judgment policies revealed four groups of women with respect to their approach to this decision. These groups of women were significantly different from each other on educational level, perceived experience of stress, and attitudes toward menopause and use of medications. Willingness to take hormonal therapy across all cases was related to attitudes about, and knowledge of, menstruation, perceived stress, mother's experience with menstrual problems, severity of symptoms, and use of vitamins. While there have been previous attempts to cluster rater policies, the current study represents a novel attempt to understand the differences between people who appear to have different policies about a decision problem, in this case, whether or not to take hormone therapy to counter menopausal symptoms.

Attitude↗
PubMed1997

Measurement methods of drug consumption as a secondary judgment criterion for clinical trials in chronic rheumatic diseases.

Drug consumption is sometimes used as a secondary judgment criterion for clinical trials. Many measurement methods are available to quantify drug consumption. Several methods were applied in a rheumatic disease trial involving 121 patients with chronic low back pain who lived around Saint-Nectaire, France, and who participated in the trial from April to November 1993 to determine an easily used and practical measurement method to detect a significant drug consumption change over time. Analgesic and nonsteroidal antiinflammatory drugs (NSAIDs) were classified according to the anatomical therapeutic chemical classification. Consumption was quantified on a weekly basis in number of tablets (method 1), unit of defined daily dose (method 2), milligrams of active principle (method 3), and NSAID equivalence score (method 4). These methods were applied in a randomized clinical trial of spa therapy on sufferers of chronic low back pain. An analysis of variance with repeated measures showed a significant difference in drug consumption between treatment and control groups detected by all methods, except for the NSAID consumption measured with method 3. The comparison of each method by the relative efficiency index indicated that method 1 had a greater sensitivity for detecting changes of drug consumption. Tablet count appears to be a more sensitive and more practical method for detecting a drug consumption change in clinical trials.

Analgesics↗
PubMed1995

Comparison of two hearing aid receiver-amplifier combinations using sound quality judgments.

Sound quality judgments were obtained on two binaural pairs of laboratory hearing aids with similar battery drain. One pair had a traditional low-current-drain "starved Class A" output stage. The other had a new (at the time) "Class D" output stage. Speech and music reproduction was rated, for seven input levels between 70 and 100 dB SPL, on an overall quality scale by juries of normal-hearing and hearing-impaired subjects. The same subjects also were asked to assign a dollar value to each condition by answering the question "What would you pay for a hearing aid that sounded like that?" Both subject groups rated the hearing aids with the Class D output stage as having superior sound quality across a variety of input levels and test materials, consistent with objective distortion measurements. On the average, each one-percentage point increase in sound quality rating corresponded to a $6.75 increase in perceived value in these experiments.

Adult↗
PubMed1994

An image analyzing system for interstitial lung abnormalities in chest radiography. Detection and classification by Laplacian-Gaussian filtering and linear opacity judgment.

RATIONALE AND OBJECTIVES: The effectiveness of a computerized analysis system to detect and characterize interstitial lung abnormalities seen on chest radiographs was evaluated. This method included a process of four-directional Laplacian-Gaussian filtering and a process of linear opacity judgement. For quantitative analysis of interstitial opacities, the radiographic index, which is the percentage of opacity areas in a region of interest, was obtained and evaluated in the images. These opacities represented interstitial lung abnormalities. METHODS: Two regions of interest were selected in each right lung of 50 patients with normal lung parenchyma and 50 patients with diffuse interstitial lung abnormalities, confirmed with high-resolution computed tomography. These regions of interest were processed by our computerized analysis system. RESULTS: Abnormal lungs were well differentiated from normal lungs by the radiographic indices obtained from the images filtered by four-directional Laplacian-Gaussian filters and from those processed by linear opacity judgement. However, honeycomb lesions and other interstitial abnormalities (interstitial changes other than honeycombing) were differentiated from each other only by the radiographic indices obtained from the image processed by linear opacity judgment (P < .05). DISCUSSION: These results indicate that this system is useful for the detection and characterization of interstitial lung abnormalities.

Female↗
PubMed1992

Functional topography during a visuoverbal judgment task studied with event-related desynchronization mapping.

Event-related desynchronization (ERD) of alpha components was studied in 10 subjects in a visuoverbal judgment task. EEG was recorded from 29 electrodes; ERD, measured by percentage of alpha power decrease, was calculated in 125-ms intervals and displayed in a time course over 7-s intervals and in the form of topographical ERD maps. ERD, interpreted as a measure of activated cortical areas, was studied in the upper and lower alpha bands. It was found that upper alpha band ERD was short-lasting (less than 1 s), localized to the posterior region and not found before stimulation; in contrast to this, lower alpha band ERD was longer-lasting (greater than 1 s), more widespread, with a left hemisphere dominance, and was already present before stimulation. ANOVA revealed significant interactions among alpha frequency bands, scalp location, and pre-/poststimulus intervals. The self-organizing topological Kohonen network was used to analyze the stability of consecutive ERD maps. There is evidence that topographical ERD patterns can be stable for about 300-400 ms.

Adult↗
PubMed1976

The reliability and application of clinical judgment in evaluating the use of hospital beds.

A technique is described which circumvents the difficulty in obtaining reliable judgments by clinicians on cases of inappropriate use of hospital beds. By application of the Delphi method of measuring group expert opinion, convergence was achieved in the estimate, by four physicians, of the total number of bed days wasted on a medical ward during a period of two weeks. Cases of possible misutilization were identified by the author and a second study was designed to measure the effect on the physicans' behavior of her presence on the ward (Hawthorne effect). It is suggested that review of cases of misutilization by the Delphi method could be used in the continuing education of physicians.

Education, Medical, Continuing↗
PubMed1984

Feasibility of simulating physicians' judgments of patient severity.

This article reports on adopting Gustafson's multiattribute utility method to develop a specific momentary severity index (vis-à-vis severity over time) for nontraumatic chest pain patients. A panel of physicians identified an appropriate set of indicators for the index. Three mathematic models were generated on the basis of these indicators with each model predicting no less than 81% of the variance in overall scores of 96 simulated patients with chest pain. High interrater reliability (0.94) was demonstrated. Congruent validity coefficients between the three model scores and the overall scores vary between 0.71 and 0.92 depending on how the panel physicians are grouped. Results indicate the feasibility of simulating physician judgments regarding patient severity in chest-pain-related cases.

Acute Disease↗