Prevalence of auditory verbal hallucinations in a general population: A group comparison study

The present study was specifically designed to investigate the prevalence of auditory verbal hallucinations (AVH) in the general population, and sought to compare similarities and differences regarding socio‐demographics, mental health and severe life events between individuals who have never experienced AVH with those who had. The study also aimed to compare those who sought professional help for their experience of AVH with those who had not sought help. Through a postal questionnaire, 2,533 participants ages 18 and over from a national survey completed the Launay‐Slade Hallucinations Scale and other measures examining AVH characteristics and other areas related to AVH. In total, 7.3% of the sample reported a life‐time prevalence of AVH. Those with AVH were more likely to be single and unemployed, reported higher levels of depression and anxiety, and experienced a higher number of severe life events compared with those without AVH. Only 16% of those who experienced AVH in the general population sought professional help for these experiences. Compared to those who did not seek professional help, participants that had were more likely to experience AVH with a negative content, experience them on a daily basis, undergo negative reactions when experiencing AVH, and resist AVH. In conclusion, the prevalence of AVH was found to be relatively high. The results also revealed higher levels of reduced mental health for individuals who sought professional help, followed by those who did not, compared with those who had never experienced AVH.     

DOES FATHERS' PRENATAL MENTAL HEALTH BEAR A RELATIONSHIP TO PARENTING STRESS AT 6 MONTHS?

This study aimed to explore fathers’ mental health and retrospectively reported adverse childhood experiences during pregnancy, as well as various pathways predicting self‐reported stress at 6 months’ postpartum as assessed by the Parenting Stress Index (PSI; R.R. Abidin, 1990 ). A total of 835 fathers contributed data to the study. Data collection comprised five time points during pregnancy and one at 6 months’ postpartum. The main analyses were performed using linear regression and path analyses. First, linear regression analyses showed that paternal anxiety symptoms during pregnancy predicted stress scores in the PSI child domain at 6 months (coefficient = 0.36). Second, path analyses showed that depressive symptoms during pregnancy predicted parenting stress in the child domain, mediated by spousal disharmony at 6 months’ postpartum (coefficient = 0.77). Third, adverse childhood experiences scores predicted parenting stress in the child domain by two different pathways: one mediated by anxiety symptoms in pregnancy (coefficient = 0.29) and the other by depressive symptoms in pregnancy and experienced spousal disharmony at 6 months’ postpartum (coefficient = 0.77). The findings suggest that fathers’ symptoms of anxiety and depression during pregnancy as well as adverse childhood experiences predict paternal stress and a negative perception of their children's behavior at 6 months’ postpartum.     

Retrieval independence in successive recognition tasks

In three experiments participants studied AB word pairs and completed two recognition tests. In the first recognition test, which was included in all three experiments, the B word had to be discriminated from two distractors that did not appear on the study list. In Experiment 1, in the second recognition test, an AB target was compared with distractors composed of words not on the study list. In Experiment 2, in the second recognition test, an AB target had to be discriminated from two other pairs that were created by randomly re-pairing A and B words that appeared on the study list. In Experiment 3, on the second recognition test, words from the study list were systematically re-paired to form distractors that contained either the same A term or the same B term as the target pair. Recognition of the B word on the first test was always at least partly independent of recognition of the AB pair on the second test. Even when recognition judgements were restricted to those for which the participants were most confident, all experiments demonstrated significant retrieval independence between the two tests.     

Concurrent and retroactive interference effects in memory of movement patterns

Three experiments examined memory for enacted and observed movement patterns. The effect of visuo-spatial tracing tasks requiring overt motor movements, comparable to those required by the to-be-recalled movement pattern task when enacted, were compared with the effects of non-motor interference tasks, such as articulatory suppression and counting backwards. None of the experiments was able to detect indices of motor mechanisms in memory of movement patterns. The results are discussed in terms of theories of action memory and working memory and of a problem-solving account.     

Autobiographical Memory and Suicide Attempts in Schizophrenia

According to the cry of pain model of suicidal behavior, an over‐general autobiographical memory function is often found in suicide attempters. The model has received empirical support in several studies, mainly of depressed patients. The present study investigated whether deficits in autobiographical memory may be associated with an increased frequency of suicide attempts in patients with schizophrenia. We found support for our hypothesis that patients with schizophrenia and previous suicide attempts have an over‐generalized autobiographical memory compared to patients with schizophrenia without previous suicide attempts. Adjustment for sociodemographic and clinical variables did not change the results.