Abstract:
INTRODUCTION:Patients with schizophrenia show impairments in working-memory and visual-spatial processing, but little is known about the dynamic interplay between the two. To provide insight into this important question, we examined the effect of positive and negative symptom expressions in healthy adults on perceptual processing while concurrently performing a working-memory task that requires the allocations of various degrees of cognitive resources. METHODS:The effect of positive and negative symptom expressions in healthy adults (N = 91) on perceptual processing was examined in a dual-task paradigm of visual-spatial working memory (VSWM) under three conditions of cognitive load: a baseline condition (with no concurrent working-memory demand), a low VSWM load condition, and a high VSWM load condition. RESULTS:Participants overall performed more efficiently (i.e., faster) with increasing cognitive load. This facilitation in performance was unrelated to symptom expressions. However, participants with high-negative, low-positive symptom expressions were less accurate in the low VSWM condition compared to the baseline and the high VSWM load conditions. CONCLUSIONS:Attenuated, subclinical expressions of psychosis affect cognitive performance that is impaired in schizophrenia. The "resource limitations hypothesis" may explain the performance of the participants with high-negative symptom expressions. The dual-task of visual-spatial processing and working memory may be beneficial to assessing the cognitive phenotype of individuals with high risk for schizophrenia spectrum disorders.
journal_name
Cogn Neuropsychiatryjournal_title
Cognitive neuropsychiatryauthors
Abu-Akel A,Reniers RL,Wood SJdoi
10.1080/13546805.2016.1206873subject
Has Abstractpub_date
2016-09-01 00:00:00pages
402-411issue
5eissn
1354-6805issn
1464-0619journal_volume
21pub_type
杂志文章abstract::Introduction: Studies have documented both executive functions (EF) impairment in children with Attention Deficit / Hyperactivity Disorders (ADHD) and Theory of Mind (ToM), yielding mixed results, possibly because of a variety of tasks used, all requiring different levels of language skills.Aim: To investigate the rel...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546805.2019.1681951
更新日期:2020-01-01 00:00:00
abstract:INTRODUCTION:Studies comparing IQ in Offspring of Bipolar Parents (OBP) with Offspring of Healthy Controls (OHC) have reported conflicting findings. They have included OBP with mental health/neurodevelopmental disorders and/or pharmacological treatment which could affect results. This UK study aimed to assess IQ in OBP...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546805.2016.1259103
更新日期:2017-01-01 00:00:00
abstract::INTRODUCTION. This study used Item-Response Theory (IRT) to model the psychometric properties of a false belief picture sequencing task. Consistent with the mental time travel hypothesis of paranoia, we anticipated that performance on this deductive theory of mind (ToM) task would not be associated with the presence o...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546805.2011.574418
更新日期:2011-11-01 00:00:00
abstract:INTRODUCTION:Research on empathy has a long tradition in clinical research, as deficits in empathy have been found in many mental disorders. Over decades, a large amount of measures for empathy have been developed, but in many cases these have not been analysed with respect to validity. Therefore, this paper aims to re...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546805.2014.991781
更新日期:2015-01-01 00:00:00
abstract:INTRODUCTION:Whatever its underlying causes, even the description of the phenomenon of thought insertion, of the content of the delusion, presents difficulty. It may seem that the best hope of a description comes from a broadly cognitivist approach to the mind which construes content-laden mental states as internal men...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546800244000102
更新日期:2002-08-01 00:00:00
abstract:INTRODUCTION:We have previously reported that people with schizophrenia and formal thought disorder (FTD) were disproportionately impaired in recalling sentences verbatim and in judging their plausibility. We proposed that these deficits were due to impairment in integrating higher-order semantic information to constru...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546805.2013.870069
更新日期:2014-01-01 00:00:00
abstract:INTRODUCTION:Although important to cognitive neuropsychiatry and theories of delusions, Capgras delusion has largely been reported in single case studies. Bell et al. [2017. Uncovering Capgras delusion using a large scale medical records database. British Journal of Psychiatry Open, 3(4), 179-185] previously deployed c...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546805.2019.1584098
更新日期:2019-03-01 00:00:00
abstract::Introduction: Cognitive impairments are common in both Autism Spectrum Disorders (ASD) and schizophrenia, but it is unclear whether the pattern of difficulties is similar or different in the two disorders. This cross-sectional and longitudinal study compared the neuropsychological functioning in adolescents with ASD w...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546805.2020.1713736
更新日期:2020-05-01 00:00:00
abstract::We used a variant of the Stroop paradigm to investigate attention bias in a young woman (JK) with delusional beliefs that she had died and that members of her family had changed. JK was shown sets of words printed in different colours of ink, and was asked to name the colour of each word. Sets of words were chosen whi...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/135468096396668
更新日期:1996-02-01 00:00:00
abstract:INTRODUCTION:Psychomotor slowing is an important feature of schizophrenia and the relation with negative symptoms is not fully understood. This study aims, first, to investigate the association between negative symptoms and psychomotor slowing. Second, we want to investigate whether fine motor slowing reflects clinical...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546805.2013.779578
更新日期:2014-01-01 00:00:00
abstract:INTRODUCTION:Functional Cognitive Disorder (FCD) is poorly understood. We sought to better characterise FCD in order to inform future diagnostic criteria and evidence based treatments. Additionally, we compared FCD patients with and without co-morbid depression, including their neuropsychological profiles, to determine...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546805.2019.1590190
更新日期:2019-03-01 00:00:00
abstract:INTRODUCTION:The aim of the present study was to compare spatial working memory performance of females and males schizophrenia patients to verify whether the sexual dimorphism of spatial abilities present in the general population is found also in schizophrenia. METHODS:We analysed different types of errors committed ...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546800903399183
更新日期:2010-07-01 00:00:00
abstract:INTRODUCTION:It has been suggested that the positive symptoms of acute schizophrenia are a consequence of a disruption of the process that produces latent inhibition (slower acquisition of conditioned responding after preexposure to the conditioned stimulus) and that this effect can be modelled by pro- and antipsychoti...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章,评审
doi:10.1080/13546805.2012.667202
更新日期:2012-11-01 00:00:00
abstract::Numerous studies have suggested, via the interpretation of the negative priming effect as a measure of cognitive inhibition, that schizotypal subjects are less able to inhibit irrelevant distracting information. Recent research has revealed, however, that negative priming effects can be caused by two quite different p...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/135468097396423
更新日期:1997-02-01 00:00:00
abstract:INTRODUCTION:In this paper, we argue for a novel account of one cognitive factor implicated in delusional cognition. According to the erotetic theory of delusion we present, the central cognitive factor in delusion is impaired endogenous question raising. METHOD:After presenting the erotetic theory, we draw on it to m...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546805.2015.1067601
更新日期:2015-01-01 00:00:00
abstract:INTRODUCTION:There is substantial evidence that patients with schizophrenia present with impaired Theory of Mind (ToM). Whereas previous studies have focused on general ToM abilities, the present study is aimed at testing the underlying behavioural and neurocognitive mechanisms of the impaired integration of affective ...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546800802490034
更新日期:2008-11-01 00:00:00
abstract::Introduction: Cognitive impairment is related to an increase in cardiovascular risk (CVR) in the general population. However, in severe mental disorder (SMD), the evidence is less consistent. Few studies have evaluated the relationship between cognition and vascular burden in SMD. This study determines the relationshi...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546805.2019.1676709
更新日期:2020-01-01 00:00:00
abstract:INTRODUCTION:Although social cognition skills and biases are well-studied in paranoia, "mind perception" - perceiving the extent to which someone even possesses a thinking, feeling mind - is not. We sought to better characterise the profile of mind perception for individuals with paranoia. METHODS:We examined links be...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546805.2017.1287692
更新日期:2017-03-01 00:00:00
abstract::Although schizophrenic patients, as a group, show deficits on measures of explicit learning, it is unclear whether they also have deficits on measures of implicit learning. The current study assessed procedural learning in a sample of 48 chronic schizophrenic inpatients and 23 normal controls using the serial reaction...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/135468097396360
更新日期:1997-05-01 00:00:00
abstract:INTRODUCTION:It is assumed that people spontaneously evaluate any incoming stimulus as pleasant or unpleasant. The evaluative response appears to structure perception and to have direct links to emotional states. METHODS:To investigate the automatic processing of face valence a sequential priming task based on emotion...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546800344000318
更新日期:2005-01-01 00:00:00
abstract:INTRODUCTION:Capgras syndrome is characterised by the belief that a significant other has been replaced by an identical-looking impostor. These patients have no difficulties with visual recognition but fail to show a skin conductance response (SCR) to the objects of the delusion. A case of Capgras delusion (YY), specif...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546800600892183
更新日期:2007-05-01 00:00:00
abstract::Introduction: Auditory verbal hallucinations (AVH) are a core symptom of psychotic disorders such as schizophrenia but are also reported in 10-15% of the general population. Impairments in self-voice recognition are frequently reported in schizophrenia and associated with the severity of AVH, particularly when the sel...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546805.2019.1621159
更新日期:2019-07-01 00:00:00
abstract::Numerous genes modulate dopamine and consequently prefrontal cortical function. Some of these genes - notably catechol-O-methyltransferase - have been shown to impact a variety of core cognitive processes that are dependent upon the prefrontal cortex. This demonstration that a single functional polymorphism can contri...
journal_title:Cognitive neuropsychiatry
pub_type:
doi:10.1080/13546800903126016
更新日期:2009-01-01 00:00:00
abstract:INTRODUCTION:Previous research suggests that latent inhibition is reduced in patients with acute schizophrenia and in healthy participants with high levels of schizotypic characteristics. Other evidence indicates the disruption of a related effect (learned irrelevance) in patients with acute schizophrenia. METHOD:This...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546800802664539
更新日期:2009-01-01 00:00:00
abstract:INTRODUCTION:Individuals with schizophrenia consistently show impairments in social cognition (SC). SC has become a potential treatment target due to its association with functional outcomes. An alternative method of assessment is to administer an observer-based scale incorporating an informant's "first hand" impressio...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546805.2014.999915
更新日期:2015-01-01 00:00:00
abstract:INTRODUCTION:Recent reports of lexical-semantic deficits in patients with schizophrenia (Laws, Al-Uzri, & Mortimer, 2000; Laws, McKenna, & Kondel, 1998) suggest that younger patients have problems accessing intact memories and older patients show apparent "loss" of the lexical-semantic memory representations themselves...
journal_title:Cognitive neuropsychiatry
pub_type: 临床试验,杂志文章
doi:10.1080/13546800444000137
更新日期:2006-01-01 00:00:00
abstract:INTRODUCTION:Category fluency is associated with speed-, executive- and semantic impairments in schizphrenia. It has traditionally been linked to negative symptoms, whereas the relation to positive symptoms is mixed. Associations to the consensus negative, positive and disorganisation factors have not been analysed bef...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章,随机对照试验
doi:10.1080/13546805.2017.1418306
更新日期:2018-01-01 00:00:00
abstract:INTRODUCTION:We investigated the relationship of insight with executive functions and symptoms in a group of stabilised inpatients with schizophrenia. METHODS:Executive functions using an extensive battery constituted of several tests as well as psychopathology were assessed in 38 inpatients with a DSM-IV diagnosis of...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546800444000308
更新日期:2006-09-01 00:00:00
abstract:INTRODUCTION:Cognitive impairment is a pervasive feature of schizophrenia, and is a major determinant of the functional disability that is characteristic of the disorder. However, research investigating whether patients with schizophrenia show a deficit awareness remains unclear. The present study aimed to replicate an...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546805.2014.909311
更新日期:2014-01-01 00:00:00
abstract:INTRODUCTION:Although there is evidence for language abnormality in schizophrenia, few studies have examined sign language in deaf patients with the disorder. This is of potential interest because a hallmark of sign languages is their use of classifiers (semantic or entity classifiers), a reference-tracking device with...
journal_title:Cognitive neuropsychiatry
pub_type: 杂志文章
doi:10.1080/13546805.2018.1476227
更新日期:2018-07-01 00:00:00