scholarly journals S220. DIFFERENTIATING EMPLOYMENT TRAJECTORIES IN SCHIZOPHRENIA: FEATURES OF CURRENT, FORMERLY, AND NEVER EMPLOYED PATIENTS

2020 ◽  
Vol 46 (Supplement_1) ◽  
pp. S122-S123
Author(s):  
Katelyn Barone ◽  
Cynthia Fundora-Trujillo ◽  
Maria Cruz ◽  
Davd L Penn ◽  
Amy E Pinkham ◽  
...  

Abstract Background The interplay between neurocognition, social cognition, and employment outcomes among the schizophrenic population has been extensively investigated, but there are disparities between the impairments that predict these outcomes. In this study, we aim to provide further insight by discriminating between factors that influence getting a job and sustaining employment. We hypothesized that neurocognitive factors would predict which individuals experienced challenges in ever getting a job, while interpersonal deficits, disruptive behavior, or psychosis would characterize individuals who were able to obtain a job but unable to keep it. Methods Patients (n=396) were between 18 and 70 years old and received a diagnosis of Schizophrenia, Schizoaffective Disorder or Schizophreniform Disorder. Performance-based assessments were conducted to measure neurocognition, social cognition and psychosis; and, clinical ratings provided information on psychosis, negative symptoms and disruptive behavior. Patients were divided into three clusters defined as: individuals who had never been employed (n=196), individuals who formerly had a job for at least 2 years but have been unemployed for at least 2 years (n=149), and individuals with current employment for at least 2 years (n=51). Results Patients who never had a job manifested the following characteristics compared to those who currently had a job: significantly fewer years of patient education (Self, p=.006), mother’s education (Mother, p=.028), and lower verbal working memory (LNS, p<.01). They also displayed significantly more PANSS social avoidance (p=.023), disturbance of volition (p=.037), and anxiety (p=.004). Compared to those who formerly had a job, these same patients manifested the following: significantly more total negative symptoms (p=.039), more severe poor rapport (p=.041) and more blunted affect (p=.002). Formerly employed patients reported significantly more depression (BDI, p=.01) and hostile cognitive bias (BLAME, p=.008), as well as worse emotional processing on the BLERT (p=.005) and ER-40 (p=.028) compared to the never employed group. Lastly, patients who formerly had a job manifested the following compared to those who currently had a job: less patient education (Self, p=.011), mother’s education (Mother, p=.015), premorbid intelligence (WRAT-3 Standard Score, p=.038), working memory (LNS, p<.01), and blunted affect (PANSS, p=.018). On the PANSS, they had more grandiosity (p=.031), suspiciousness (p=.008), anxiety (p=.001), active social avoidance (p=.003), and depression (p=.016). BDI total score, for depression, was also elevated [t(114)=3.58, p=001)]. Discussion Individuals who never had a job have evidence of less education and poorer working memory as well as negative and mood symptoms, when compared to those who were ever employed. Those who obtained a job but developed long-term unemployment had evidence of 1) social cognitive impairments, including hostile bias and emotion processing deficits, when compared to the never employed patients and 2) lower education, working memory, and PANSS ratings for negative symptoms, suspiciousness and grandiosity, when compared to the currently employed patients. Thus, the formerly employed patients manifested a constellation of symptoms that would seem to interfere with sustaining employment. Later research will be required to determine the time course of development that these predictors of unemployment have on patients who were previously able to work.

2009 ◽  
Vol 15 (4) ◽  
pp. 536-546 ◽  
Author(s):  
PABLO CAMPO ◽  
FERNANDO MAESTÚ ◽  
IRENE GARCÍA-MORALES ◽  
ANTONIO GIL-NAGEL ◽  
BRYAN STRANGE ◽  
...  

AbstractIt has been traditionally assumed that medial temporal lobe (MTL) is not required for working memory (WM). However, animal lesion and electrophysiological studies and human neuropsychological and neuroimaging studies have provided increasing evidences of a critical involvement of MTL in WM. Based on previous findings, the central aim of this study was to investigate the contribution of the MTL to verbal WM encoding. Here, we used magnetoencephalography (MEG) to compare the patterns of MTL activation of 9 epilepsy patients suffering from left hippocampal sclerosis with those of 10 healthy matched controls while they performed a verbal WM task. MEG recordings allow detailed tracking of the time course of MTL activation. We observed impaired WM performance associated with changes in the dynamics of MTL activity in epilepsy patients. Specifically, whereas patients showed decreased activity in damaged MTL, activity in the contralateral MTL was enhanced, an effect that became significant in the 600- to 700-ms interval after stimulus presentation. These findings strongly support the crucial contribution of MTL to verbal WM encoding and provide compelling evidence for the proposal that MTL contributes to both episodic memory and WM. Whether this pattern is signaling reorganization or a normal use of a damaged structure is discussed. (JINS, 2009, 15, 536–546.)


2014 ◽  
Vol 29 (8) ◽  
pp. 473-478 ◽  
Author(s):  
G. Brébion ◽  
C. Stephan-Otto ◽  
E. Huerta-Ramos ◽  
J. Usall ◽  
M. Perez del Olmo ◽  
...  

AbstractObjectiveVerbal working memory span is decreased in patients with schizophrenia, and this might contribute to impairment in higher cognitive functions as well as to the formation of certain clinical symptoms. Processing speed has been identified as a crucial factor in cognitive efficiency in this population. We tested the hypothesis that decreased processing speed underlies the verbal working memory deficit in patients and mediates the associations between working memory span and clinical symptoms.MethodForty-nine schizophrenia inpatients recruited from units for chronic and acute patients, and forty-five healthy participants, were involved in the study. Verbal working memory span was assessed by means of the letter-number span. The Digit Copy test was used to assess motor speed, and the Digit Symbol Substitution Test to assess cognitive speed.ResultsThe working memory span was significantly impaired in patients (F(1,90) = 4.6, P < 0.05). However, the group difference was eliminated when either the motor or the cognitive speed measure was controlled (F(1,89) = 0.03, P = 0.86, and F(1,89) = 0.03, P = 0.88). In the patient group, working memory span was significantly correlated with negative symptoms (r = –0.52, P < 0.0001) and thought disorganisation (r = –0.34, P < 0.025) scores. Regression analyses showed that the association with negative symptoms was no longer significant when the motor speed measure was controlled (β = –0.12, P = 0.20), while the association with thought disorganisation was no longer significant when the cognitive speed measure was controlled (β = –0.10, P = 0.26).ConclusionsDecrement in motor and cognitive speed plays a significant role in both the verbal working memory impairment observed in patients and the associations between verbal working memory impairment and clinical symptoms.


CNS Spectrums ◽  
2004 ◽  
Vol 9 (S11) ◽  
pp. 15-24 ◽  
Author(s):  
Herbert Y. Meltzer

AbstractGreater attention has been given to the cognitive dimension in schizophrenia in recent years. This has resulted from increased recognition that cognitive impairment and negative symptoms of the disease have a greater impact on quality of life (QOL) compared to positive symptoms. Successful treatment of positive symptoms in patients with schizophrenia has not been shown to robustly translate into improvements in employment status or social relationships, while cognitive improvements are strongly associated with these important aspects of QOL and independence. These findings are based on extensive testing with standard cognitive tests for measuring executive function, verbal learning and memory, word recall, verbal working memory, spatial working memory, attention, and vigilance. Verbal learning and executive function, in particular, have been found to be valid predictors of employment success independent of the degree of severity of positive symptoms.


Author(s):  
Jörg-Tobias Kuhn ◽  
Elena Ise ◽  
Julia Raddatz ◽  
Christin Schwenk ◽  
Christian Dobel

Abstract. Objective: Deficits in basic numerical skills, calculation, and working memory have been found in children with developmental dyscalculia (DD) as well as children with attention-deficit/hyperactivity disorder (ADHD). This paper investigates cognitive profiles of children with DD and/or ADHD symptoms (AS) in a double dissociation design to obtain a better understanding of the comorbidity of DD and ADHD. Method: Children with DD-only (N = 33), AS-only (N = 16), comorbid DD+AS (N = 20), and typically developing controls (TD, N = 40) were assessed on measures of basic numerical processing, calculation, working memory, processing speed, and neurocognitive measures of attention. Results: Children with DD (DD, DD+AS) showed deficits in all basic numerical skills, calculation, working memory, and sustained attention. Children with AS (AS, DD+AS) displayed more selective difficulties in dot enumeration, subtraction, verbal working memory, and processing speed. Also, they generally performed more poorly in neurocognitive measures of attention, especially alertness. Children with DD+AS mostly showed an additive combination of the deficits associated with DD-only and A_Sonly, except for subtraction tasks, in which they were less impaired than expected. Conclusions: DD and AS appear to be related to largely distinct patterns of cognitive deficits, which are present in combination in children with DD+AS.



2016 ◽  
Vol 30 (4) ◽  
pp. 141-154 ◽  
Author(s):  
Kira Bailey ◽  
Gregory Mlynarczyk ◽  
Robert West

Abstract. Working memory supports our ability to maintain goal-relevant information that guides cognition in the face of distraction or competing tasks. The N-back task has been widely used in cognitive neuroscience to examine the functional neuroanatomy of working memory. Fewer studies have capitalized on the temporal resolution of event-related brain potentials (ERPs) to examine the time course of neural activity in the N-back task. The primary goal of the current study was to characterize slow wave activity observed in the response-to-stimulus interval in the N-back task that may be related to maintenance of information between trials in the task. In three experiments, we examined the effects of N-back load, interference, and response accuracy on the amplitude of the P3b following stimulus onset and slow wave activity elicited in the response-to-stimulus interval. Consistent with previous research, the amplitude of the P3b decreased as N-back load increased. Slow wave activity over the frontal and posterior regions of the scalp was sensitive to N-back load and was insensitive to interference or response accuracy. Together these findings lead to the suggestion that slow wave activity observed in the response-to-stimulus interval is related to the maintenance of information between trials in the 1-back task.


2012 ◽  
Author(s):  
Klaus Oberauer ◽  
Stephan Lewandowsky

2007 ◽  
Author(s):  
Christelle Robert ◽  
Delphine Fagot ◽  
Thierry Lecerf ◽  
Anik de Ribaupierre

2009 ◽  
Author(s):  
Klaus Oberauer ◽  
Stephan Lewandowsky

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