Stroop dilution but not word-processing dilution: evidence for attention capture

Stroop dilution refers to the observation that the impact of a color word on the naming of a color bar is reduced if another word-like object is displayed simultaneously. Recently, Brown, Roos-Gilbert, and Carr (1995) concluded that Stroop dilution is due to early-visual interference. This conclusion was evaluated in three experiments. Experiment 1 showed that, contrary to the predictions of an early-visual interference account, (a) diluters that are similar in terms of visual complexity induced different amounts of dilution and (b) the size of the dilution effect is proportional to the size of the Stroop interference effect when the diluters are used as single distractors. Experiments 2 and 3 revealed that when the position of the color bar is pre-cued, Stroop dilution disappears. We argue that these findings support Van der Heijden's (1992) attention-capture account of Stroop dilution.     

Using auditory streaming to reduce disruption to serial memory by extraneous auditory warnings

Three experiments were conducted to examine the effects of extraneous speech warnings (i.e., low-priority warnings initiated during high-priority tasks) on cognitive performance and whether organizing the auditory warnings into streams can attenuate any disruption. Experiment 1 demonstrated that a variety of speech warnings can be separated into perceptually distinct streams by allocating them to discrete spatial locations. Experiment 2 showed that increasing the rate of presentation of the warnings to promote streaming decreased clarity ratings but increased perceived urgency ratings. Experiment 3 demonstrated that the disruption to serial memory for navigational information by extraneous speech warnings could be attenuated by streaming. Results are interpreted in light of previous research, and practical implications for auditory warning design are discussed.     

Pattern of Neuropsychological Deficit at Age Five Years Following Neonatal Unilateral Brain Injury

The pattern of language deficit following left-hemisphere brain injury and visual/spatial deficit following right-hemisphere injury in an adult or older child is well recognized, but has been inconsistently reported following presumed neonatal brain injury. Our prospective study of 24 children at age 5 with documented neonatal unilateral brain injury lends support to the theory of hemisphere specialization at the time of birth. Twelve children who had unilateral left-hemisphere lesion were compared to 12 children with unilateral right-hemisphere lesion of similar timing and severity. Relative visual/spatial deficit following right-hemisphere lesion and receptive language deficit following left-hemisphere lesion were identified. Lateralized measures of grip strength, fine motor speed, and fine motor dexterity were not significantly different between the groups for either hand in this nonhemiparetic study sample. Only one child with a left-hemisphere lesion was left-handed, and only one child (right-lesion) had a hemiparesis.     

Social Anxiety in Children with Anxiety Disorders: Relation with Social and Emotional Functioning

Investigated the psychometric properties of the Social Anxiety Scale for children-Revised (SASC-R) as well as relations between social anxiety and children's social and emotional functioning. Participants were a clinic sample of children, ages 6–11 with anxiety disorders (N = 154) who completed the SASC-R. For a subset of these children, parent ratings of social skills, and self-ratings of perceived competence and peer interactions were also obtained. Factor analysis of the SASC-R supported the original three-factor solution and internal consistencies were in the acceptable range. Among children with simple phobia, scores on the SASC-R differentiated those with and without a comorbid social-based anxiety disorder. Social anxiety was also associated with impairments in social and emotional functioning. Specifically, highly socially anxious children reported low levels of social acceptance and global self-esteem and more negative peer interactions. Girls with high levels of social anxiety were also rated by parents as having poor social skills, particularly in the areas of assertive and responsible social behavior.     

Changing social stereotypes: The case of the information seeker

Previous research has shown that stereotype-based judgements can be attenuated through the attribution of disconfirming information to individual group members. Typically in these studies, subjects are forced to process all the available in formation, including disconfirming information, before providing their impressions of the group. In the reported research, in contrast, we attempted to create a more naturalistic paradigm by allowing subjects to control the amount and nature of information they received about individual group members. Under these conditions, we expected subjects to instigate a biased information-seeking strategy and display a preference for stereotype-matching rather than stereotype-mismatching information. Our results supported this prediction. When subjects could control the nature and amount of information they received about a target group they showed: (i) a preference for stereotype-matching information and (ii) no change in their stereotypic impressions of the group. When, however, subjects were forced to process all the available information, their stereotypic evaluation of the group diminished. These findings demonstrate the general resistance of stereotypes to change in naturalistic, information-seeking settings.     

Reduction of epileptic seizures by reinforcement of bladder continence.

Epileptic seizures and resulting incontinence of urine were effectively reduced by reinforcement of incompatible behaviour with individual programming within a general token economy system. Two treatment phases, including token and social reinforcement, during an 11 week period resulted in significant seizure reduction. Therapeutic gains were maintained in a 6 month follow-up.     

Runners and meditators: a comparison of personality profiles

Although both running and meditating have been considered as healthful and enlightening, no data have yet been published comparing the personality profiles of the two groups. A sample of 48 runners and 43 meditators, all males between the ages of 40 and 60, were given the Cattell 16 PF Test Profile and the results were compared. The meditators were significantly more assertive and enthusiastic than the runners. They also appear as Significantly less conscientious and controlled than the runners, as well as more experimenting and suspicious.     

The multiple vigilance test

The multiple vigilance test is a 30-min signal detection task designed to assess performance. Sixty target and 180 nontarget stimuli are presented with random interstimulus intervals ranging from 4 to 11 sec. Subjects respond by pressing the spacebar (or microswitch in an alternate version of the program) when they see the masking pattern transformed into the target. This vigilance test is used in conjunction with measures of physiological sleepiness (Multiple Sleep Latency Test) and subjective sleepiness (Stanford Sleepiness Scale). This behavioral information concerning manifest sleepiness provides a more complete picture of a subject’s state of alertness. The assessment of vigilance during long, monotonous, nonstimulating tasks is clinically important in patients with disorders of sleep and arousal.     

Musical groove shapes children's free dancing

The drive to move to music is evident across a variety of contexts, from the simple urge to tap our toe to a song on the radio, to massive crowds dancing in time at a rock concert. Though seemingly effortless, beat synchronization is difficult to master and children are often poor beat synchronizers. Nevertheless, auditory-motor integration is fundamental for many daily processes, such as speech. A topic that has been relatively understudied concerns how stimulus properties affect young children's movement in responses to auditory stimuli. In the present study, we examined how musical groove (adult-rated desire to move) affected 3.0- to 6.9-year-old children's free dancing in the comfort of their home (n = 78). In the high groove conditions, children danced more and with more energy compared to the low groove conditions. Moreover, in the high groove condition, children's movement tempos corresponded better with the tempos of the music. Results point to early childhood sensitivity to the musical features that motivate adults to move to music. High groove music may therefore prove especially effective at facilitating early auditory-motor integration. A video abstract of this article can be viewed at https://youtu.be/vli0-6N12Ts .     

An investigation of the link between attributional judgments and stereotype‐based judgments

Three experiments investigated the relationship between the attributions made for stereotype‐relevant behavior and stereotype‐based judgments. In Experiment 1 participants were presented with a short scenario describing a single stereotypic behavior and were given either a situational or a dispositional explanation for the behavior, before evaluating both the target and the group as a whole on stereotype‐based dimensions. As predicted, participants given a situational explanation for the stereotypic behavior described in the target and the group in less stereotype‐based terms than did baseline participants. In Experiment 2 and 3 participants were presented with a short scenario describing either a single stereotypic or counter‐stereotypic behavior but were asked to provide an explanation for the behavior, rather than being given one. As predicted, stereotypic behavior was attributed more strongly to dispositional than situational factors and counter‐stereotypic behavior more strongly to situational than dispositional factors. No overall moderation of group‐based beliefs relative to baseline was seen in either experiment. Correlations between the attributions and stereotypic‐based judgments did, however, show a relationship between the strength of the attributions made for the behaviors and stereotype‐based judgements. Implications for the moderation of stereotype‐based judgments are discussed. Copyright © 2000 John Wiley & Sons, Ltd.