Cognitive deficits in compulsive checkers: An exploratory study

Compulsive-checking behavior can be conceptualized as resulting, in part, from a memory failure. In order to determine if memory difficulties are associated with compulsive checking, the performance of college-student checkers were compared with the performance of non-checkers on a number of cognitive tasks hypothesized to be relevant to understanding checking behavior. Using the Checking and Cleaning subscales of the Maudsley Obsessional-Compulsive Inventory, four groups of subjects were identified: (1) Cleaning Checkers (N = 13); (2) Noncleaning Checkers (N = 13); (3) Cleaning Noncheckers (N = 13); and (4) Noncleaning Noncheckers (N = 15). It was hypothesized that the cognitive deficits studied would characterize individuals with cheeking compulsions, but not persons with non-checking compulsions (i.e. Cleaning Noncheckers) or normal controls (i.e. Noncleaning Noncheckers). Compulsive checkers were found to have a poorer memory for prior actions than non-checkers and were also found to underestimate their ability at distinguishing memories of real and imagined events, a process referred to as reality monitoring. Both of these deficits were specific to compulsive checkers and can be viewed as contributing to the likelihood that an individual will engage in checking behavior. If an individual has difficulty in recalling whether an intended action has been executed, they may be inclined to engage in checking behavior to insure the intended action is carried out. Similarly, a tendency to underestimate reality-monitoring ability could result in increased checking behavior as the individual attempts to reduce his/her uncertainty over whether a previous behavior actually occurred or merely was thought to occur. It is concluded that the study of cognitive deficits in compulsive checking is a potentially fruitful avenue for further inquiry.     

Menstruation and suicide: an exploratory study

Previous research has reported mixed findings on the effect of the menstrual cycle on suicidal behavior. The contribution of menstruation to completed suicide is also controversial, though the studies are very limited and have not been carefully designed. To explore the relationship, 217 autopsies on completed suicides were performed, matched to a control group at the All India Institute of Medical Sciences in New Delhi. The results show that 54.46% of people who died by suicide were menstruating (results excluded pregnancies), compared to 6.75% of the control group. Menstruation in those who completed suicide, compared to a control group, appeared to have an association with suicide. More research is warranted.     

Auditory processing in developmental dyslexia: An exploratory study of an auditory and visual matching training program with Swedish children with developmental dyslexia

This study examined whether training using a nonverbal auditory-visual matching task had a remedial effect on reading skills in developmental dyslexia. The pretest/post-test design was used with Swedish children ( N = 41), between the ages of 7 and 12. Training comprised twice-weekly sessions of 15 minutes, over eight weeks. There was an improvement in auditory-visual matching during the training period. There were also improvements in some reading test scores, especially in reading nonsense words and in reading speed. These improvements in tasks which are thought to rely on phonological processing suggest that such reading difficulties in dyslexia may stem in part from more basic perceptual difficulties, including those required to manage the visual and auditory components of the decoding task. The utility of the concept of auditory structuring is discussed in relation to auditory and phonological processing skills when a child learns to read.     

Alexithymia in schizophrenia: an exploratory study.

This study assessed a relationship between alexithymia and schizophrenia suggested by reports based on small samples of patients. Here, 50 outpatients with a diagnosis of paranoid schizophrenia were compared with 50 pair-matched healthy subjects. Alexithymia was measured by the Polish version of the Toronto Alexithymia Scale-20. The mean total score was significantly higher in the schizophrenia group (M = 52.3, SD = 13.47) than in the healthy controls (M = 45.8, SD = 11.39, p < .02). This replicates earlier findings showing that a group of patients with paranoid schizophrenia have higher scores on alexithymia scales than healthy controls. There seems a need for a comprehensive examination of relations between alexithymia and other concepts denoting pathology of affect in schizophrenia.     

Hypermasculinity and academic goal-setting: an exploratory study

The relation between gender-role percepts and academic goal-setting was explored. An inventory examining the aspects of masculinity that would facilitate or inhibit academic goal-setting was developed based on a literature review of how masculinity relates to academic behaviors. A diverse sample of students (120 male, 147 female, 14 not indicating sex) was measured on three aspects of sex and academic goal-setting behavior. Factor analysis confirmed the content validity of masculine factors having facilitative (Mastery Competitiveness) and inhibitory (Antisocial Competitiveness) academic properties. Regression analyses indicated that sex-role orientations (Competitiveness and Hypermasculinity) significantly predicted academic goal-setting behaviors (R2 = .136). Finally, men scored higher than women on the subscales measuring Hypermasculinity and Antisocial or Competitiveness, while there were no sex differences on the Mastery Competitiveness subscale. The implications of these findings and suggestions for research are discussed.     

Schizophrenia and automatic processing: an exploratory study

This study deals with the schizophrenic deficit as one of automatic processing. To test the idea, a special experimental task was designed on which 21 schizophrenics, 21 depressives, and 21 normal subjects had to complete a series of simple geometric figures. When the subjects had thoroughly learned this activity, another information source, a brief story, was introduced, and the subjects had to pay attention to the story while they did the task. Two dependent variables were considered, execution time and performance. There were no differences among the three groups in the first experimental condition; but in the second condition, when the distractor was introduced, schizophrenics needed more time to do the task and their performance was noticeably worse than those of both normals and depressives. This outcome is explained in terms of a failure in the internal mechanisms which regulate the automatic, parallel, and unconscious processing.     

Frontal deficits in alcoholism: an ERP study

Alcoholism is a major health problem afflicting people all over the world. Understanding the neural substrates of this addictive disorder may provide the basis for effective interventions. So-called "executive processes" play a role in cognitive functions like attention and working memory, and appear to be disrupted in alcoholism (Noel et al., 2001). Event related potentials (ERPs) provide an excellent, minimally invasive technique for exploring these neural deficits. The current study used the P300 in number sequencing task (modified version of the Petries & Milner, 1982) requiring working memory to compare a group of patients with alcoholism and frontal lobe lesions to patients with subcortical lesions and normal controls to assess the relationship of alcoholism to frontal lobe damage. The ERP paradigm was a Number Sequencing task. Electrophysiological results indicate that the frontal lesion group had significant P300 amplitude reduction and a similar trend for alcohol dependent group but not the subcortical group compared to the normal controls.     

Cognitive deficits in developmental disorders

The existence of specific developmental disorders such as dyslexia and autism raises interesting issues about the structure of the normally developing mind. In these disorders distinct cognitive deficits can explain a range of behavioural impairments and have the potential to be linked to specific brain abnormalities. One possibility is that there are specific mechanisms dedicated to particular types of information processing. These mechanisms may function independently of more general information processing systems and may have a distinct anatomical basis in the brain.     

Phonemic deficits in developmental dyslexia

Summary The present study explored a possible relationship between reading difficulties and speech difficulties. Dyslexic and normal readers, matched for Reading Age, were compared first on a reading task and secondly on a speaking task.In the first experiment, the two groups were asked to read nonsense words aloud. Both groups were able to read one-syllable nonwords equally well but the dyslexics had more difficulty than the normal readers when asked to read two-syllable nonwords. Moreover, they found two-syllable nonwords containing consonant clusters particularly difficult. The probability of their making an error increased with the number of consonant clusters.In the second experiment, the subjects were required to repeat real words and nonsense words of two, three, or four syllables. Both groups found nonsense words more difficult to repeat than real words. However, the relative difficulty of nonsense words over real words was greater for the dyslexic group. Their difficulty was especially marked when they had to repeat four-syllable nonsense words.Thus, in both experiments the dyslexic readers were more affected by the phonological complexity of the stimuli than the normal readers were. Hence, it was suggested that the dyslexic readers tested were subject to a general phonemic deficit which affected their ability to process both written and spoken words.     

Dual-tasking alleviated sleep deprivation disruption in visuomotor tracking: an fMRI study

Effects of dual-responding on tracking performance after 49-h of sleep deprivation (SD) were evaluated behaviorally and with functional magnetic resonance imaging (fMRI). Continuous visuomotor tracking was performed simultaneously with an intermittent color-matching visual detection task in which a pair of color-matched stimuli constituted a target and non-matches were non-targets. Tracking error means were binned time-locked to stimulus onset of the detection task in order to observe changes associated with dual-responding by comparing the error during targets and non-targets. Similar comparison was made with fMRI data. Our result showed that despite a significant increase in the overall tracking error post SD, from 20 pixels pre SD to 45 pixels post SD, error decreased to a minimum of about 25 pixels 0-6s after dual-response. Despite an overall reduced activation post SD, greater activation difference between targets and non-targets was found post SD in task-related regions, such as the left cerebellum, the left somatosensory cortex, the left extrastriate cortex, bilateral precuneus, the left middle frontal gyrus, and the left motor cortex. Our results suggest that dual-response helps to alleviate performance impairment usually associated with SD. The duration of the alleviation effect was on the order of seconds after dual-responding.     

Reinforcing fluency in stutterers: An experimental study

Subject-specific periods of fluent reading responses of three adult stutterers were positively reinforced with the presentation of a dime. Subjects were run individually through a sequence of two base rate, two experimental, and two extinction sessions, each session lasting 45 min. Periods of fluent reading responses increased during the experimental condition for each of the three subjects. When the reinforcer was withdrawn during the extinction condition, the frequency of fluent periods showed a decrease. Concomitantly, disfluencies decreased during the experimental condition and they increased during the extinction condition. The clinical implications of fluency manipulation as against disfluency manipulation are discussed.     

Sex differences in online shopping: an exploratory study

Empirically, predictors of purchasing an item (among 15) online in a sample of 365 undergraduates were dependent upon the sex of the purchaser and the particular item purchased.     

Consumer misbehaviour: an exploratory study of shopliftin

Although customer theft is traditionally researched from a criminological or psychological perspective, this paper investigates shoplifting as consumer behaviour, demonstrating that well‐defined models of normal consumer behaviour can be applied to aberrant behaviour such as shop theft. Empirical research is used to show how adults and teenagers form belief systems that amount to rational intentions in the decision to shoplift. The theory of planned behaviour (Ajzen, 1991) was used as the basis for two self‐report surveys which investigated the interaction between consumers' attitudes and beliefs about shoplifting and their perceptions of retail security. The first survey utilised a sample of shoppers from the South East Midlands; the second a sample of school students from the same area (861 respondents in total, 109 respondents admitting to shoplifting in the previous year). Both studies indicate that the decision to shoplift is influenced by pro‐shoplifting attitudes, social factors, opportunities for shoplifting and perceptions of low risks of apprehension. This implies that the deterrent messages we use must be reassessed. Copyright © 2002 Henry Stewart Publications.     

Predictors of spiritual struggles: an exploratory study

The purpose of the current study was to identify factors that predict spiritual struggles. It was hypothesised that factors from religious (e.g., God image, attachment to God, church attitudes, religious history), personal (e.g., neuroticism, pessimism, trait anger), social (e.g., social support, loneliness), and situational (e.g., negative appraisals) domains may predispose people to spiritual struggles during times of distress. Participants (309 undergraduate students) filled out questionnaires measuring relevant constructs and a two-step hierarchical multiple regression equation was generated separately for each of the four domains. Upon identifying significant predictors from each of the four domains, a final hierarchical regression equation revealed that: (1) more negative appraisals of a stressful situation, (2) an insecure ambivalent attachment to God, and (3) neuroticism significantly predicted unique variance in spiritual struggles beyond the effects of relevant religious variables, thus generally supporting the hypothesis that spiritual struggles are complex phenomena that stem from multiple factors.