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At least 1,081 records · Page 60Linked to original sources
PubMed2001

Motor learning enhances perceptual judgment: a case for action-perception transfer.

Transfer from perception to action is well documented, for instance in the form of observational learning. Transfer from action to perception, on the other hand, has not been researched. Such action-perception transfer (APT) is compatible with several learning theories and has been predicted within the framework of common coding of perceptual and motor events (Prinz, 1992, 1997). Our first experiment aimed at an empirical evaluation of APT and involved motor practice of timed two-cycle arm movements on verbal command without visual feedback. In a transfer test, visual judgments of similar patterns had to be made. In addition, transfer from the visual to the motor task was studied. In Experiment 2 we separated kinesthetic aspects of motor practice from preparatory and efferent contributions to APT. The experiments provide evidence that transfer between perception and action is bi-directional. Transfer from perception to action and, more importantly, from action to perception was found. Furthermore, APT was equally pronounced for participants who had actively practiced movements during training and for passive participants who had received merely kinesthetic feedback about the movement. This kinesthetic-visual transfer is likely to be achieved via visuomotor-kinesthetic matching or via timekeeping mechanisms that are involved in both motor and visual performance.

Adult↗
PubMed2006

Adults' judgments of children's coached reports.

This study investigated adults' judgments of the honesty of children's coached true and fabricated mock testimony. Adults saw video clips of children testifying in a mock court about a true or fabricated event in their lives. They were asked to make an assessment of the truthfulness of the testimony, and respond to questions about their perception of children's credibility. Half of the adults saw children testifying after a competence examination, and the other half saw children testifying without a competence examination. Overall, girls were rated as more competent than boys, and their testimony was more likely to be believed. Younger children were more likely to be rated as incompetent than older children. A factor analysis of adults' responses revealed six factors which significantly predicted adults' overall assessment of children's credibility, and their evaluations of children's competence to testify. Adults' detection accuracy was at chance, with the majority of children rated as truthful. Viewing the competency examination and cross-examination did not improve the adults' detection accuracy. However, seeing the cross-examination made adults' less likely to believe children's testimony. The implications of these results for the judicial system are discussed.

Adult↗
PubMed2004

Have sanctioned algorithms replaced empiric judgment in the selection process of antiarrhythmic drugs for the therapy for atrial fibrillation?

Treatment of atrial fibrillation (AF) includes rate control, anticoagulation, rhythm control, and therapy of any underlying structural heart disease and/or AF precipitant. Rhythm control, restoration of and maintenance of sinus rhythm (NSR), is required in patients who remain significantly symptomatic despite rate control. Rhythm control generally employs antiarrhythmic drugs (AAD). When the selection of AADs was limited, and included only class IA agents, the choice of drug to use was empiric, guided by anticipated tolerance and compliance. Now, with multiple classes of AADs available and with a better understanding of organ toxic and proarrhythmic risks, algorithms to guide drug selection have become both popularized and sanctioned. Notably, although such algorithms are now the standard of care and the norms to which practitioners should be held regarding the selection of an AAD for AF management, they have not removed empiricism and clinical judgment from the AAD selection process. Clinical decision making is still required to select from among any group of drug options as listed in the published algorithms, and to select the dosing regimen to use. Prior history, dosing frequency, desirability of b-blocking effect, electrolyte status, renal function, concomitant therapies, site of initiation, and anticipated patient compliance are also all nonalgorithmic issues in the decision process.

Algorithms↗
PubMed1994

More talk, less paper: predicting the accuracy of substituted judgments.

PURPOSE: To study the accuracy of substituted judgments regarding life-sustaining therapies and other therapies made by surrogate decision makers and to investigate factors associated with more accurate predictions. PATIENTS AND METHODS: A total of 50 pairs of ambulatory patients and surrogates, chosen according to a legal hierarchy, underwent separate interviews in which surrogates were asked to predict the preferences of patients for eight modes of medical therapy in three clinical scenarios, given only yes or no as response options. Patient preferences, their surrogates' predictions, and the extent of agreement between the two were measured. The total number of correct predictions constituted the Surrogate Accuracy in Matching Patient Preferences Scale (SAMPPS). Sociodemographic factors associated with agreement were also assessed. RESULTS: Agreement between patients and surrogates ranged from 57% to 81%. The mean SAMPPS score was 17 of 24 correct. Kappa (k) coefficients, which measure inter-rater concordance, were positive for 23 of 24 items and were 0.3 or greater (P < 0.05) for 14 of 24 items. Rates of agreement were not related to whether the surrogate interviewed (surrogate determined by state law) was the person the patient would have chosen as a surrogate or whether the patient had an advance directive. In multiple linear regression analysis, both prior discussions of preferences and nonchurchgoing behavior were significantly associated with patient-surrogate agreement, independent of religious denomination and race. CONCLUSION: When pressed to choose, surrogates can predict the preferences of patients for life-sustaining therapies with an imperfect accuracy that nonetheless significantly exceeds the agreement expected due to chance alone. Exhorting surrogates to give their "best estimate" and encouraging prior discussions may improve accuracy. Houses of worship might be important target sites for campaigns to improve public awareness about advance directives.

Adult↗
PubMed1978

An investigation of the variability of judgments of experienced and inexperienced listeners in their use of a screening test of articulation.

This study examines the extent to which the mean, or average degree of agreement, of a group of listeners actually represents the consistency of judgments of all members of that group. Twenty-two experienced and inexperienced judges scored the responses, from tape recordings, of six children with multiple articulation errors on the McDonald Screening Deep Test of Articulation. The intra- and interexaminer reliability of the judges was assessed. Results suggested that, as a group, both experienced and inexperienced listeners were capable of making consistent decisions about children's responses on the Screening Deep Test of Articulation. It was determined, however, that group averages may not reflect accurately the consistency of all members of the group or accurately estimate the population average. Variances for both groups were high and significant differences were found between the variances of the groups. Confidence intervals were reported and their clinical implications discussed.

Auditory Perception↗
PubMed1984

Effects of hierarchical organization on children's judgments of distance and direction.

The impact of the hierarchical organization of a space on judgments of direction and distance was assessed in two studies using two-dimensional models analogous to those used by A. Stevens and P. Coupe (1978, Cognitive Psychology, 10, 422-437). In each study the models contained two stars and were divided into two parts by a curved boundary line. In the Homogeneous condition the stars were located in the same subsection. In the Congruent condition the leftmost star was in the left subsection and the rightmost star was in the right subsection. In the Incongruent condition the rightmost star was in the left subsection and the leftmost star was in the right subsection. In Experiment 1 first graders, third graders, and college students were required to remember the location of the stars. Results indicated that the first and third graders tended to use the relationship between the subsections as a clue to the relationship between the sites within them, thus extending the results of Stevens and Coupe (1978) to children. In Experiment 2 preschoolers, first, and third graders were asked to judge with the materials directly in front of them, which of the two stars was closer to a site located in one of the subsections. Results indicated that the Incongruent condition led to errors among the preschoolers and first graders but not the third graders, thus indicating that these groups tended to judge as closer the site within the same subsection even though it was really farther away. The results of both studies are discussed as indicative of a tendency among young children to impose organization on information encoded in memory and in relation to increases in metric accuracy, decentration, and efficient scanning which enable them to more accurately evaluate when such organization is and is not appropriate. Implications for behavior in large-scale environments are also discussed, with particular reference to the effect of barriers on perceptions of distance and direction.

Age Factors↗
PubMed1985

A system for developing and evaluating the clinical judgment of dental students.

A system for evaluating the clinical judgment of dental students in removable prosthodontics was presented. The major points of the system are as follows. Students must decide when the quality of their treatment is worthy of a grade. Three quality-level categories are used. Letters that have no intrinsic meaning are used to designate each quality level. Each item may be evaluated a maximum of four times by the student before remediation is instituted. Each attempt to evaluate the same procedure receives a lower point value. The final grade is determined as a percent of points earned out of a possible maximum. Faculty acceptance of the system is high. The system provides an easy means of feedback to students.

Clinical Competence↗
PubMed1988

Electrophysiological manifestations of typicality judgment.

Ten male subjects participated in an event-related potential study of typicality judgment of words that were of either high or low frequency of usage. The amplitude of a negative wave with an average peak latency of 490 msec (N400) correlated with the goodness-of-fit of a word to a particular category independent of frequency, with poor examples of the category evoking a significantly more negative waveform. The relative insensitivity of the N400 to word frequency suggests that the N400 reflects some postlexical evaluation rather than lexical access.

Adult↗
PubMed1984

Diminished responsibility as a mitigating circumstance in juvenile offenders' legal judgments.

The legal judgments of 20 juvenile offenders and 20 non-offenders were examined for three types of crimes: assault, arson and treason. Mitigating circumstances cast in the form of an inability to control events consisted of brain damage, passion and economic need, in contrast to a situation in which no mitigating circumstances were offered. The results indicated that despite the often-made legal argument, neither group regarded passion and economic need as circumstances warranting the reduction of sentencing. Compared to the non-offender group, offenders rated brain damage as less mitigating. While non-offenders rated passion and economic need more severely than brain damage, offenders' ratings of the three circumstances did not differ significantly. The findings are discussed in terms of perceptions of control and structural-developmental approaches to socialization.

Adolescent↗
PubMed2004

The effect of a reason's truth-value on the judgment of a fallacious argument.

Informal reasoning fallacies are arguments that are psychologically persuasive but not valid. In the context of informal reasoning fallacies, the truth-value of the reason in support of a given claim is irrelevant to judging the validity of the argument as a whole. This property stands in sharp contrast with the general role of the reason's truth-value in judging arguments in general. The aim of this study was to test the hypothesis that in the context of informal reasoning fallacies the truth-value of a reason influences pupils' judgment of the extent to which the reason supports the claim. The results of the study confirm the research hypothesis.

Adolescent↗
PubMed2004

Audiotactile temporal order judgments.

We report a series of three experiments in which participants made unspeeded 'Which modality came first?' temporal order judgments (TOJs) to pairs of auditory and tactile stimuli presented at varying stimulus onset asynchronies (SOAs) using the method of constant stimuli. The stimuli were presented from either the same or different locations in order to explore the potential effect of redundant spatial information on audiotactile temporal perception. In Experiment 1, the auditory and tactile stimuli had to be separated by nearly 80 ms for inexperienced participants to be able to judge their temporal order accurately (i.e., for the just noticeable difference (JND) to be achieved), no matter whether the stimuli were presented from the same or different spatial positions. More experienced psychophysical observers (Experiment 2) also failed to show any effect of relative spatial position on audiotactile TOJ performance, despite having much lower JNDs (40 ms) overall. A similar pattern of results was found in Experiment 3 when silent electrocutaneous stimulation was used rather than vibrotactile stimulation. Thus, relative spatial position seems to be a less important factor in determining performance for audiotactile TOJ than for other modality pairings (e.g., audiovisual and visuotactile).

Acoustic Stimulation↗
PubMed2006

Comparative judgments with missing information: a regression and process tracing analysis.

We had participants decide which one of two applicants was better qualified for a scholarship. They also judged the difference between them (comparative judgment). The applicants were described by features (grades) in different subjects (dimensions). The grades on some dimensions were missing (unique dimensions) for an alternative while all the grades were available on other dimensions (common dimensions). In a conventional regression analysis, we found that decision makers gave more weight to dimensions when they were common than when they were unique. However, this commensurability effect was limited to medium important dimensions and did not apply to dimensions of high or low importance. We also observed how participants retrieved information for the choice alternatives and analysed how importance and commensurability are reflected in the processing prior to the decision. Features on more important or common dimensions were inspected earlier than features on less important or unique dimensions. Participants preferred dimensional transitions and inspected features on unique dimensions longer than their common counterparts. This finding suggested that participants used inferences when features were missing. We propose an outline of a decision heuristic to describe decision making with missing information.

Adult↗
PubMed2004

Spatio-temporal brain activation profiles associated with line bisection judgments and double simultaneous visual stimulation.

We used magnetic source imaging (MSI) to investigate the spatio-temporal patterns of brain activity associated with line bisection judgments and double simultaneous visual stimulation in 14 healthy adults. Consistent with lesion and hemodynamic neuroimaging studies, we found the greatest number of activity sources in right inferior parietal cortex. These sources were most prominent, on average, between 200 and 300 ms after the onset of single (left, right, or center) target stimuli. A greater number of significant activity sources were found in right inferior parietal, occipital, and prefrontal cortices during bilateral compared with unilateral stimulus presentation. Based on these observations, we suggest that a more parsimonious physiological explanation of visual extinction than the hemispheric rivalry account may be the additional neuronal excitation required in right occipital and parietal cortices for accurate bilateral visual perception.

Adult↗
PubMed2006

Judgments of causal efficacy under constant and changing interevent contingencies.

How do people judge constant and varying interevent contingencies? In two experiments, 150 college students rated the efficacy of a potential cause (an experimental fertilizer) of an effect (a plant's blooming). The prevailing probabilistic interevent relation could remain constant for the entirety of the problem or it could change without warning at the midway point: by contingency reversal, by shifting from noncontingency to contingency, or by shifting from contingency to noncontingency. Participants' trial-by-trial ratings sensitively tracked the prevailing positive, negative, and noncontingent interevent relations, even those that entailed an unsignaled change in contingency. Changes in specific cells of the 2 x 2 contingency table differentially affected participants' response to the altered interevent relations. All of this evidence was well described by an associative account of contingency and causal judgments.

Adaptation, Psychological↗
PubMed2006

Temporal order judgment reveals how number magnitude affects visuospatial attention.

The existence of spatial components in the mental representation of number magnitude has raised the question regarding the relation between numbers and spatial attention. We present six experiments in which this relation was examined using a temporal order judgment task to index attentional allocation. Results demonstrate that one important consequence of numerical processing is the automatic allocation of spatial attention, which in turn affects the perception of the temporal order of visual events. Given equal onset time, left-side stimuli are perceived to occur before right-side stimuli when a small number (1, 2) is processed, whereas right-side stimuli are perceived to occur before left-side stimuli when a larger number (8, 9) is processed. In addition, we show that this attentional effect is specific to quantity processing and does not generalize to non-numerical ordinal sequences.

Adult↗
PubMed2007

Similarity and attraction effects in episodic memory judgments.

In the decision-making literature, it is known that preferences between two options can be influenced in different ways by the introduction of a third option. We investigated whether such influences could be demonstrated when making decisions about qualitative aspects of episodic memories. In a baseline condition, participants were asked which of two dissimilar events they remembered more vividly: (A) a well-known Olympic victory, or (B) the death of a well-known public figure. In two further conditions, a third event was added: (C) an Olympic victory similar and competitive to A, or (D) an Olympic victory similar but inferior to A. With the addition of C, participants were less likely to choose A than B (similarity effect), whereas with the addition of D, they were more likely to choose A than B (attraction effect), suggesting that effects known in decision-making can be generalised to relative judgments about episodic memories.

Adolescent↗
PubMed2006

Judgments of associative memory.

Judgments of associative memory (JAM) were indexed by ratings given to pairs of cue and response words. The normed probabilities, p(response|cue), were obtained from free association norms. The ratings were linearly related to the probabilities. The JAM functions were characterized by high intercepts ( approximately 50 on a 100 point scale) and shallow slopes (<0.5). The JAM function generalized across materials and method of rating. The function was not affected by expectancies or semantic similarity. Attempts to alter the function by making alternative responses more available were unsuccessful. A computer simulation model (MINERVA 2) exhibited the linear JAM function and successfully accounted for more complex phenomena (like the joint influence of forward and backward associative strengths on ratings). The shallow JAM slope appears to result from a fundamental lack of discrimination among associative strengths. The high intercept appears to result partly from an independent post-mnemonic source of bias producing over-estimation of association.

Association↗
PubMed2006

Using expert judgments to understand spatial patterns of forest-based camping: a values-at-risk application.

Fire management agencies in Canada are mandated with protecting multiple forest values from wildfire. Deciding where to reduce fire hazard and how to allocate resources and fire suppression efforts requires an understanding of the values-at-risk from wildfire. The protection of recreation infrastructure is often assumed to provide adequate protection of recreation values. We use an expert judgment approach to provide a spatial distribution of recreation values-at-risk in the forested eastern slopes of the Rocky Mountain region of Alberta, Canada. Data were collected in 2004 from 11 land managers responsible for public lands management and wildfire prevention in the region. Expert assessments showed that recreation values were not confined to areas with publicly funded infrastructure. Exploratory spatial analysis of the ratings identified hotspots and cold spots of recreation activity. Maps resulting from these efforts will provide guidance to fire managers in the prioritization of fire management activities.

Alberta↗