Journal of the International Neuropsychological Society (J INT NEUROPSYCH SOC)

Publisher: International Neuropsychological Society, Cambridge University Press (CUP)

Journal description

Published for the International Neuropsychological Society JINS aims to further scientific and research activities in neuropsychology and enhance communication among its cognate member disciplines. The journal publishes scholarly peer-reviewed articles and includes original research timely review articles and transactions of the annual meetings of the International Neuropsychological Society. Contributions reflect the interest of all areas of neuropsychology including but not limited to: development of cognitive processes brain-behavior relationships adult neuropsychology child neuropsychology developmental neuropsychology disorders of speech and language and related topics such as behavioral neurology neuropsychiatry neuroimaging and electrophysiology. The journal also includes articles employing neuropsychological methods which use an experimental more applied or clinical approach.

Current impact factor: 3.01

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 Impact Factor 3.009
2012 Impact Factor 2.697
2011 Impact Factor 2.759
2010 Impact Factor 2.91
2009 Impact Factor 2.766
2008 Impact Factor 2.625
2007 Impact Factor 2.402
2006 Impact Factor 2.367
2005 Impact Factor 2.595
2004 Impact Factor 2.95
2003 Impact Factor 2.304
2002 Impact Factor 1.947
2001 Impact Factor 2.034
2000 Impact Factor 2.376

Impact factor over time

Impact factor

Additional details

5-year impact 3.23
Cited half-life 7.10
Immediacy index 0.41
Eigenfactor 0.01
Article influence 1.11
Website Journal of the International Neuropsychological Society website
Other titles Journal of the International Neuropsychological Society, JINS
ISSN 1355-6177
OCLC 32597279
Material type Periodical, Internet resource
Document type Journal / Magazine / Newspaper, Internet Resource

Publisher details

Cambridge University Press (CUP)

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author can archive a post-print version
  • Conditions
    • Author's Pre-print on author's personal website, departmental website, social media websites, institutional repository, non-commercial subject-based repositories, such as PubMed Central, Europe PMC or arXiv
    • Author's post-print on author's personal website on acceptance of publication
    • Author's post-print on departmental website, institutional repository, non-commercial subject-based repositories, such as PubMed Central, Europe PMC or arXiv, after a 6 months embargo
    • Publisher's version/PDF cannot be used
    • Published abstract may be deposited
    • Pre-print to record acceptance for publication
    • Publisher copyright and source must be acknowledged with set statement, for deposit of Authors Post-print or Publisher's version/PDF
    • Must link to publisher version
    • Publisher last reviewed on 07/10/2014
    • This policy is an exception to the default policies of 'Cambridge University Press (CUP)'
  • Classification
    ​ green

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: Impairment on inhibitory tasks has been well documented in bipolar disorder (BD). Differences in cerebral blood flow (CBF) between BD patients and healthy comparison (HC) participants have also been reported. Few studies have examined the relationship between cognitive performance and regional CBF in this patient population. We hypothesized that group differences on an inhibitory task (the Delis-Kaplan Executive Function Scale's Color-Word Inhibition task) would be associated with differential CBF in bilateral anterior cingulate cortex (ACC), inferior parietal lobule (IPL) and dorsolateral prefrontal cortex (DLPFC) regions. Whole brain resting CBF was measured using Multiphase Pseudocontinuous Arterial Spin Labeling MR imaging for 28 euthymic BD and 36 HC participants. Total gray matter (GM) CBF was measured, and regional CBF values were extracted for each region of interest (ROI) using Freesurfer-based individual parcellations. Group, CBF, and group-by-CBF interaction were examined as predictors of inhibition performance. Groups did not differ in age, gender or education. BD patients performed significantly worse on Color-Word inhibition. There were no significant group differences in CBF in either total GM or in any ROI. There was a group by CBF interaction in the bilateral ACC, right IPL and right DLPFC such that better inhibitory performance was generally associated with higher resting state CBF in BD subjects, but not HC participants. Although CBF was not abnormal in this euthymic BD sample, results confirm previous reports of inter-episode inhibitory deficits and indicate that the perfusion-cognition relationship is different in BD compared to HC individuals. (JINS, 2015, 21, 1-11).
    Journal of the International Neuropsychological Society 03/2015; DOI:10.1017/S135561771400112X
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    ABSTRACT: Objective: Previous meta-analyses suggest patients with Parkinson’s disease experience significant decline in verbal fluency compared to non-clinical groups. Deep brain stimulation for Parkinson’s disease is also associated with impairment in verbal fluency. The purpose of this study is to determine if bilateral deep brain stimulation in patients with Parkinson’s disease is associated with greater impairment in verbal fluency when compared to a clinical control group managed by medication. Participants and Methods: Though a literature search yielded over 140 articles, 11 articles met inclusion criteria. Specifically, those studies that were of high methodological quality, from peer-reviewed journals, included bilateral stimulation with a comparison group of non-surgical patients with Parkinson’s disease were included. A total of 462 patients who underwent deep brain surgery and 420 non-surgical controls were included. Cohen’s d was calculated as a measure of effect size comparing the means (+SD) for verbal fluency performance. Results: Tests of heterogeneity were non-significant and there were no outliers. The random effects model showed a medium effect size for phonemic fluency (d = -0.49) and a small effect size for semantic fluency (d= -0.29). Moderators such as time elapsed since surgery and disease duration were not significant. Disease severity (Hoehn & Yahr stage at baseline) was a significant moderator for phonemic fluency and age was a significant moderator for semantic fluency. Conclusions: The results indicate patients with Parkinson’s disease who have undergone bilateral deep brain stimulation have significant impairment in verbal fluency compared to patients with Parkinson’s treated with medication.
    Journal of the International Neuropsychological Society 03/2015; 21(S1):159.
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    ABSTRACT: Objective: Patients with Parkinson's disease (PD) can show impaired self-awareness of motor deficits (ISAm). We developed a new scale that measures ISAm severity of hyper- and hypokinetic movements in PD during medication on state and defined its psychometric criteria. Method: Included were 104 right-handed, non-depressed, non-demented patients. Concerning ISAm, 38 motor symptoms were assessed using seven tasks, which were performed and self-rated concerning presence of deficit (yes/no) by all patients. The whole procedure was videotaped. Motor symptoms were then evaluated by two independent experts, blinded for patient's ratings, concerning presence, awareness of deficit, and severity. Exploratory principal component analysis (promax rotation) was applied to reduce items. Principal axis factoring was conducted to extract factors. Reliability was examined regarding internal consistency, split-half reliability, and interrater reliability. Validity was verified by applying two additional measures of ISAm. Results: Of the initial 38 symptoms, 15 remained, assessed in five motor tasks and merged to a total severity score. Factor analysis resulted in a four factor solution (dyskinesia, resting tremor right hand, resting tremor left hand, bradykinesia). For all subscales and the total score, measures of reliability (values 0.64-0.89) and validity (effect sizes>0.3) were satisfactory. Descriptive results showed that 66% of patients had signs of ISAm (median 2, range 0-15), with ISAm being most distinct for dyskinesia. Conclusions: We provide the first validation of a test for ISAm in PD. Using this instrument, future studies can further analyze the pathophysiology of ISAm, the psychosocial sequelae, therapeutic strategies and compliance with therapy. (JINS, 2015, 21, 1-10).
    Journal of the International Neuropsychological Society 02/2015; DOI:10.1017/S1355617715000107
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    ABSTRACT: Education and related proxies for cognitive reserve (CR) are confounded by associations with environmental factors that correlate with cerebrovascular disease possibly explaining discrepancies between studies examining their relationships to cognitive aging and dementia. In contrast, sex-related memory differences may be a better proxy. Since they arise developmentally, they are less likely to reflect environmental confounds. Women outperform men on verbal and men generally outperform women on visuospatial memory tasks. Furthermore, memory declines during the preclinical stage of AD, when it is clinically indistinguishable from normal aging. To determine whether CR mitigates age-related memory decline, we examined the effects of gender and APOE genotype on longitudinal memory performances. Memory decline was assessed in a cohort of healthy men and women enriched for APOE ɛ4 who completed two verbal [Rey Auditory Verbal Learning Test (AVLT), Buschke Selective Reminding Test (SRT)] and two visuospatial [Rey-Osterrieth Complex Figure Test (CFT), and Benton Visual Retention Test (VRT)] memory tests, as well as in a separate larger and older cohort [National Alzheimer's Coordinating Center (NACC)] who completed a verbal memory test (Logical Memory). Age-related memory decline was accelerated in APOE ɛ4 carriers on all verbal memory measures (AVLT, p=.03; SRT p<.001; logical memory p<.001) and on the VRT p=.006. Baseline sex associated differences were retained over time, but no sex differences in rate of decline were found for any measure in either cohort. Sex-based memory advantage does not mitigate age-related memory decline in either APOE ɛ4 carriers or non-carriers. (JINS, 2015, 21, 1-10).
    Journal of the International Neuropsychological Society 02/2015; DOI:10.1017/S1355617715000016
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    ABSTRACT: Objective: Previous studies have demonstrated that emotional facial expressions alter temporal judgments. Moreover, while some studies conducted with Parkinson's Disease (PD) patients suggest dysfunction in the recognition of emotional facial expression, others have shown a dysfunction in time perception. In the present study, we investigate the magnitude of temporal distortions caused by the presentation of emotional facial expressions (anger, shame, and neutral) in PD patients and controls. Method: Twenty-five older adults with PD and 17 healthy older adults took part in the present study. PD patients were divided into two sub-groups, with and without mild cognitive impairment (MCI), based on their neuropsychological performance. Participants were tested with a time bisection task with standard intervals lasting 400 ms and 1600 ms. Results: The effect of facial emotional stimuli on time perception was evident in all participants, yet the effect was greater for PD-MCI patients. Further, PD-MCI patients were more likely to underestimate long and overestimate short temporal intervals than PD-non-MCI patients and controls. Conclusions: Temporal impairment in PD-MCI patients seem to be mainly caused by a memory dysfunction.
    Journal of the International Neuropsychological Society 01/2015;
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    ABSTRACT: Objective: Although the specific pattern of executive function deficits in Autism Spectrum Disorder (ASD) is not yet known, the more solid generalizations about executive functioning in ASD reflect a disturbance of ‘‘social executive’’ functioning that involves frontal motivation, self-monitoring, and volitional attention regulation. In this study, we aimed to compare performance of individuals with ASD to typically developing individuals using the VR Classroom Stroop Task. Participants and Methods: Eight individuals diagnosed with ASD and eight neurotypical university students were administered both traditional versions of the Stroop task (paper-and-pencil and computerized) and the VR Classroom Stroop task. Within the VR Classroom, participants are asked to click a mouse button if the color of the stimulus presented matches the color spoken by the “virtual teacher.” Ecologically valid auditory, visual, and audio-visual distractors are presented around the environment in the distraction condition. Results: The Classroom succeeded in eliciting an interference effect from both the ASD group F(1,7) = 15.832, p < .001, and the neurotypical group, F(1,7) = 19.33, p < .001. However, significant differences in performance between the two groups were not observed. Conclusions: The VR Classroom successfully elicited an interference effect using Stroop stimuli in both populations, suggesting it may be used as a measure of interference control. These results indicated individuals with ASD do not differ significantly from TD individuals in their ability to inhibit irrelevant information.
    Journal of the International Neuropsychological Society 01/2015; 20(s1):239.
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    ABSTRACT: Executive functions (EF) are a complex set of neurodevelopmental, higher-ordered processes that are especially salient during adolescence. Disruptions to these processes are predictive of psychiatric problems in later adolescence and adulthood. The objectives of the current study were to characterize the latent structure of EF using bifactor analysis and to investigate the independent and interactive effects of genes and environments on EF during adolescence. Using a representative young adolescent sample, we tested the interaction of a polymorphism in the serotonin transporter gene (5-HTTLPR) and parental supervision for EF through hierarchical linear regression. To account for the possibility of a hierarchical factor structure for EF, a bifactor analysis was conducted on the eight subtests of the Delis-Kaplan Executive Functions System (D-KEFS). The bifactor analysis revealed the presence of a general EF construct and three EF subdomains (i.e., conceptual flexibility, inhibition, and fluency). A significant 5-HTTLPR by parental supervision interaction was found for conceptual flexibility, but not for general EF, fluency or inhibition. Specifically, youth with the L/L genotype had significantly lower conceptual flexibility scores compared to youth with S/S or S/L genotypes given low levels of parental supervision. Our findings indicate that adolescents with the L/L genotype were especially vulnerable to poor parental supervision on EF. This vulnerability may be amenable to preventive interventions. (JINS, 2014, 20, 1-12).
    Journal of the International Neuropsychological Society 12/2014; 21(01):1-12. DOI:10.1017/S1355617714001039
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    ABSTRACT: Although prospective memory (PM) is compromised in mild cognitive impairment (MCI), it is unclear which specific cognitive processes underlie these PM difficulties. We investigated older adults' performance on a computerized event-based focal versus nonfocal PM task that made varying demands on the amount of attentional control required to support intention retrieval. Participants were nondemented individuals (mean age=81.8 years; female=66.1%) enrolled in a community-based longitudinal study, including those with amnestic MCI (aMCI), nonamnestic MCI (naMCI), subjective cognitive decline (SCD), and healthy controls (HC). Participants included in the primary analysis (n=189) completed the PM task and recalled and/or recognized both focal and nonfocal PM cues presented in the task. Participants and their informants also completed a questionnaire assessing everyday PM failures. Relative to HC, those with aMCI and naMCI were significantly impaired in focal PM accuracy (p<.05). In a follow-up analysis that included 13 additional participants who successfully recalled and/or recognized at least one of the two PM cues, the naMCI group showed deficits in nonfocal PM accuracy (p<.05). There was a significant negative correlation between informant reports of PM difficulties and nonfocal PM accuracy (p<.01). PM failures in aMCI may be primarily related to impairment of spontaneous retrieval processes associated with the medial temporal lobe system, while PM failures in naMCI potentially indicate additional deficits in executive control functions and prefrontal systems. The observed focal versus nonfocal PM performance profiles in aMCI and naMCI may constitute specific behavioral markers of PM decline that result from compromise of separate neurocognitive systems. (JINS, 2014, 20, 1-13).
    Journal of the International Neuropsychological Society 11/2014; 20(10):1-13. DOI:10.1017/S1355617714000964