Effects of handedness and saccadic bilateral eye movements on components of autobiographical recollection

The effects of handedness and saccadic bilateral eye movements on autobiographical recollection were investigated. Recall of autobiographical memories was cued by the use of neutral and emotional words. Autobiographical recollection was assessed by the autobiographical memory questionnaire. Experiment 1 found that mixed-handed (vs. right handed) individuals demonstrated greater levels of autobiographical recollection on the components of seeing, hearing, and emotion. Experiment 2 found that following 30 s of bilateral eye movements, greater levels of autobiographical recollection were demonstrated on the components of reliving, seeing, hearing, emotion, self-perspective and veridicality. The results extend previous research by showing that the recollective components of real world memories can be enhanced by either mixed-handedness or eye movements. In addition, these results provide a bridge between laboratory studies of recollection and autobiographical recollection. The findings are considered in terms of research on the cognitive neuroscience of autobiographical memory.     

The L/M-opponent channel provides a distinct and time-dependent contribution towards visual recognition

The visual pathway has been successfully modelled as containing separate channels consisting of one achromatically opponent mechanism and two chromatically opponent mechanisms. However, little is known about how time affects the processing of chromatic information. Here, parametrically defined objects were generated. Reduced-colour objects were interleaved with full-colour objects and measures of recognition performance (d') were compared by the continuous serial recognition paradigm. Measures were taken at multiple delay intervals (1, 4, 7, and 10 s). When chromatic variations were removed, recognition performance was impaired, but at the 1 s and 10 s intervals only. When luminance variations were removed, no impairment resulted. When only L/M-opponent modulations were removed, a deficit in performance was produced only at the 1 s and 10 s intervals, similar to the removal of chromatic variation. When only S-opponent modulations were removed, no impairment was observed. The results suggest that the L/M-opponent pathway provides a specialised contribution to visual recognition, but that its effect is modulated by time. A three-stage process model is proposed to explain the data.     

Electrophysiological correlates of rapid auditory and linguistic processing in adolescents with specific language impairment

Brief tonal stimuli and spoken sentences were utilized to examine whether adolescents (aged 14;3-18;1) with specific language impairments (SLI) exhibit atypical neural activity for rapid auditory processing of non-linguistic stimuli and linguistic processing of verb-agreement and semantic constraints. Further, we examined whether the behavioral and electrophysiological indices for rapid auditory processing were correlated with those for linguistic processing. Fifteen adolescents with SLI and 15 adolescents with normal language met strict criteria for displaying consistent diagnoses from kindergarten through the eighth grade. The findings provide evidence that auditory processing for non-linguistic stimuli is atypical in a significant number of adolescents with SLI compared to peers with normal language and indicate that reduced efficiency in auditory processing in SLI is more vulnerable to rapid rates (200ms ISI) of stimuli presentation (indexed by reduced accuracy, a tendency for longer RTs, reduced N100 over right anterior sites, and reduced amplitude P300). Many adolescents with SLI displayed reduced behavioral accuracy for detecting verb-agreement violations and semantic anomalies, along with less robust P600s elicited by verb-agreement violations. The results indicate that ERPs elicited by morphosyntactic aspects of language processing are atypical in many adolescents with SLI. Additionally, correlational analyses between behavioral and electrophysiological indices of processing non-linguistic stimuli and verb-agreement violations suggest that the integrity of neural functions for auditory processing may only account for a small proportion of the variance in morphosyntactic processing in some adolescents.     

Personality prototypes in individuals with compulsive buying based on the Big Five Model

Personality prototypes based on the Big Five factor model were investigated in a treatment-seeking sample of 68 individuals with compulsive buying (CB). Cluster analysis of the NEO Five-Factor Inventory (NEO-FFI) scales yielded two distinct personality clusters. Participants in cluster II scored significantly higher than those in cluster I on neuroticism and lower on the other four personality traits. Subjects in cluster II showed higher severity of CB, lower degree of control over CB symptoms, and were more anxious, interpersonally sensitive and impulsive. Furthermore, cluster II was characterized by higher rates of comorbid anxiety disorders, and cluster B personality disorders. The two personality prototypes did not differ with respect to obsessive-compulsive features. Finally and of considerable clinical significance, participants in cluster II reported lower remission rates after undergoing cognitive-behavioral therapy. Implications of the results for treatment are discussed.     

Skin picking in patients with obesity: Associations with impulsiveness and self‐harm

Previous studies suggest elevated prevalence rates of skin picking and self‐harm in patients with obesity compared to individuals in the general population. Hence, further studies should investigate prevalence rates and correlates of skin picking in this population – especially its differentiation to self‐harm. Skin picking and obesity are both associated with specific facets of impulsiveness. This relation should be explored to shed light on potentially shared mechanisms in etiology. Therefore, the present study examined the occurrence of skin picking and its associations with impulsiveness and self‐harm in a sample of pre‐bariatric surgery patients with obesity class II/III. Within the routine preoperative psychiatric evaluation, a total of 139 bariatric surgery candidates (78% female, BMI range 35–69) completed a self‐report questionnaire assessing sociodemographic variables, anxiety, depression, self‐harm, impulsiveness, and skin picking severity (urges: frequency, intensity, controllability; behavior: frequency, intensity, controllability; resistance, emotional distress, impairment, and avoidance). Ten participants (7.2% of the sample) reported recurrent skin picking leading to skin damage, repeated attempts to decrease skin picking, and psychosocial impairment (emotional distress, impairment in functional areas, avoidance) due to skin picking. In line with previous findings, skin picking severity shows a medium correlation with attentional impulsiveness. The majority of self‐harm types were not associated with skin picking severity. The current study reveals a high occurrence of skin picking compared to the general population. The results indicate an association between skin picking severity and attentional impulsiveness. Further research is needed to investigate the differentiation of skin picking and self‐harm in more detail.     

Basic visual perceptual processes in children with typical development and cerebral palsy: The processing of surface,length, orientation,and position

The present study aims to assess how the processing of basic visual perceptual (VP) components (length, surface, orientation, and position) develops in typically developing (TD) children (n = 215, 4–14 years old) and adults (n = 20, 20–25 years old), and in children with cerebral palsy (CP) (n = 86, 5–14 years old) using the first four subtests of the Battery for the Evaluation of Visual Perceptual and Spatial processing in children. Experiment 1 showed that these four basic VP processes follow distinct developmental trajectories in typical development. Experiment 2 revealed that children with CP present global and persistent deficits for the processing of basic VP components when compared with TD children matched on chronological age and nonverbal reasoning abilities.     

Control and legacy as functions of perceived criticality in major incidents

This paper outlines a model that captures the experiences of 28 Senior Officers who have managed some of the most significant police incidents in the UK in the past 5 years. The process for capturing the model rests on ‘pragmatic psychology’ (Fishman, 1999; Alison, West & Goodwill, 2003), a paradigm that recognizes practitioners' experiences as a central component of research and policy development. We utilized a set of connected electronic notebooks to enable each critical incident manager to log their experiences and views of the case that they managed. As each individual logs this information, it is simultaneously distributed to all participants. Thus, information is rapidly shared, stimulating further thought and discussion. Following the initial knowledge‐sharing phase, participants reorder the material into themed categories that can then be scored against specific criteria (in this case ‘impact’ and ‘ease’). This session revealed that senior officers consider a combination of two co‐occurring issues as most significant in defining the ‘criticality’ of the incident: (i) how direct an impact the facet has on the enquiry at hand; and (ii) whether that issue will influence how the service will be judged (by the community, the victims and the media). These issues were perceived as the most complex and difficult to deal with. We argue that this perception is a joint function of perceived lack of control alongside the belief that judgment and blame regarding the incident will ultimately reside with them as managers. Copyright © 2004 John Wiley & Sons, Ltd.     

How Bad Is It? Perceptions of the Relationship Impact of Different Types of Internet Sexual Activities

Internet sex has become a ubiquitous phenomenon that is affecting couples and families. Eight scenarios (from visiting various adult web sites to having sex) involving a male or female character in a committed relationship were presented in a survey format. Participants (n = 242) rated each scenario in terms of emotional and physical involvement, amount of distraction from the primary relationship, and whether the respondent considered the scenario to be an affair. Results indicate that perceptions of internet activities differed depending on the type of internet sexual activity, although the majority of the internet sexual activities were considered to be highly emotional involving, a distraction to the relationship, and sexual in nature, though no physical contact was involved. The gender of the character in the scenario had no effect on participants' responses. Women tended to see the scenarios as being more serious than men. Clinical implications are discussed.