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Irak M, Topçuoğlu V, Duman TN, Akyurt S, Yılmaz İ, Pala İY. Investigating Retrospective and Prospective Metamemory Judgments During Episodic Memory in Patients With Obsessive-Compulsive Disorders. Behav Ther 2024; 55:277-291. [PMID: 38418040 DOI: 10.1016/j.beth.2023.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 06/25/2023] [Accepted: 07/03/2023] [Indexed: 03/01/2024]
Abstract
It is clear evidence that individuals diagnosed with obsessive-compulsive disorder (OCD) lack confidence in their memory and have low metamemory performance (judgment and accuracy). However, it is still unclear whether low metamemory performance is specific to first, domain general or domain specific, and second, to stimulus domain. To address these issues, we compared individuals diagnosed with OCD and healthy controls (HCs) on recognition, retrospective (judgments of learning [JOL]) and prospective (feeling of knowing [FOK]) metamemory judgments and under three different episodic memory tasks, which consisted of symptom-free, familiar and unfamiliar stimuli (word, scene, and face photo). OCD patients showed lower recognition performance, JOL and FOK judgments, and accuracy in all tasks than HCs. Also, OCD patients were slower than HCs during all cognitive performances. In both groups, metamemory performances were lower in familiar items than unfamiliar items. However, recognition performances were not affected by stimulus type. Our results support the idea of general episodic memory and a metamemory deficit in OCD. Moreover, metamemory deficits in OCD are domain general.
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Radomsky AS, Ouellet-Courtois C, Golden E, Senn JM, Parrish CL. Putting things right: An experimental investigation of memory biases related to symmetry, ordering and arranging behaviour. J Behav Ther Exp Psychiatry 2024; 82:101914. [PMID: 37793286 DOI: 10.1016/j.jbtep.2023.101914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 08/17/2023] [Accepted: 09/27/2023] [Indexed: 10/06/2023]
Abstract
BACKGROUND AND OBJECTIVES Research indicates the presence of both explicit and implicit memory biases for threat. However, empirical support for the presence of memory biases related to symmetry, ordering and arranging is lacking, despite the fact that many individuals report anxiety associated with their personal belongings being out of place. The aim of this experiment was to examine memory biases for disorderliness and their associations with symmetry, ordering and arranging symptoms. METHODS Eighty undergraduate participants were assigned to one of four conditions, consisting of rooms in which objects were arranged according to different levels of disorderliness (orderly, slightly disorderly, slightly orderly, and disorderly). Participants next completed a memory task in which their memory for disordered vs. ordered objects was assessed. Measures of OCD symptoms, preference for symmetry, OCD belief domains, anxiety and depression were completed. RESULTS Analyses indicated that participants in the slightly disorderly condition showed significantly better recall and recognition for the disordered items than for the ordered items, and that those in the slightly orderly condition showed the same pattern in recall, but not recognition. No associations were found between a preference for symmetry and memory biases. LIMITATIONS The sample scored particularly low on our measure of symptoms of preference for symmetry, compromising the generalizability of our results. CONCLUSIONS Findings provide evidence for a general memory bias for disorderliness, although this bias does not appear to be associated with symmetry, ordering and arranging symptoms. Results are discussed from a cognitive-behavioural perspective with the consideration of feelings of incompleteness.
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Affiliation(s)
- Adam S Radomsky
- Concordia University, Department of Psychology, 7141 Rue Sherbrooke Ouest, Montreal, Quebec, H4B 1R6, Canada.
| | - Catherine Ouellet-Courtois
- Concordia University, Department of Psychology, 7141 Rue Sherbrooke Ouest, Montreal, Quebec, H4B 1R6, Canada
| | - Elissa Golden
- Concordia University, Department of Psychology, 7141 Rue Sherbrooke Ouest, Montreal, Quebec, H4B 1R6, Canada
| | - Jessica M Senn
- Concordia University, Department of Psychology, 7141 Rue Sherbrooke Ouest, Montreal, Quebec, H4B 1R6, Canada
| | - Chris L Parrish
- Concordia University, Department of Psychology, 7141 Rue Sherbrooke Ouest, Montreal, Quebec, H4B 1R6, Canada
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Yan H, Zhang Y, Shan X, Li H, Liu F, Xie G, Li P, Guo W. Altered interhemispheric functional connectivity in patients with obsessive-compulsive disorder and its potential in therapeutic response prediction. J Neurosci Res 2024; 102. [PMID: 38284840 DOI: 10.1002/jnr.25272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 10/23/2023] [Accepted: 10/25/2023] [Indexed: 01/30/2024]
Abstract
The trajectory of voxel-mirrored homotopic connectivity (VMHC) after medical treatment in obsessive-compulsive disorder (OCD) and its value in prediction of treatment response remains unclear. This study aimed to investigate the pathophysiological mechanism of OCD, as well as biomarkers for prediction of pharmacological efficacy. Medication-free patients with OCD and healthy controls (HCs) underwent magnetic resonance imaging. The patients were scanned again after a 4-week treatment with paroxetine. The acquired data were subjected to VMHC, support vector regression (SVR), and correlation analyses. Compared with HCs (36 subjects), patients with OCD (34 subjects after excluding two subjects with excessive head movement) exhibited significantly lower VMHC in the bilateral superior parietal lobule (SPL), postcentral gyrus, and calcarine cortex, and VMHC in the postcentral gyrus was positively correlated with cognitive function. After treatment, the patients showed increased VMHC in the bilateral posterior cingulate cortex/precuneus (PCC/PCu) with the improvement of symptoms. SVR results showed that VMHC in the postcentral gyrus at baseline could aid to predict a change in the scores of OCD scales. This study revealed that SPL, postcentral gyrus, and calcarine cortex participate in the pathophysiological mechanism of OCD while PCC/PCu participate in the pharmacological mechanism. VMHC in the postcentral gyrus is a potential predictive biomarker of the treatment effects in OCD.
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Affiliation(s)
- Haohao Yan
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Yingying Zhang
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Xiaoxiao Shan
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Huabing Li
- Department of Radiology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Feng Liu
- Department of Radiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Guojun Xie
- Department of Psychiatry, The Third People's Hospital of Foshan, Foshan, China
| | - Ping Li
- Department of Psychiatry, Qiqihar Medical University, Qiqihar, China
| | - Wenbin Guo
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
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Al Mohaddesin FR, Moghimi A, Fadardi JS. Disgust-reduction evaluative conditioning (DREC) and brain stimulation in patients with contamination-based obsessive-compulsive disorder: a protocol for a randomized control trial. Trials 2023; 24:750. [PMID: 38001473 PMCID: PMC10675853 DOI: 10.1186/s13063-023-07791-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND The negative emotional valence of a stimulus can be altered if paired with a pleasant stimulus, a phenomenon referred to as evaluative conditioning. Disgust, as a central emotion in obsessive-compulsive disorder (OCD), particularly in the contamination subtype, may be an appropriate target for such a method. We know that disgust processing and OCD pathophysiology share in some brain areas, including the orbitofrontal cortex, as the neuromodulation techniques targeted in this area have been able to decrease OCD symptoms. We aim to conduct a randomized clinical trial to investigate the evaluative conditioning effect on disgust reduction in patients with contamination-based OCD when administered with or without neuromodulation targeted orbitofrontal cortex. METHOD In a single-blind randomized control trial (RCT), 55 patients with contamination-based OCD will be randomly assigned to four arms. In a factorial design, they will receive 10 sessions of evaluative conditioning training (either sham or real) plus cathodal transcranial direct current stimulation (tDCS) over the orbitofrontal cortex (either sham or real). The intensity of disgust experience and clinical symptoms will be investigated as primary outcomes and quantitative electroencephalogram and cognitive functions as secondary outcomes. The data will be collected at three assessment levels: baseline, after completing intervention sessions, and 2-month follow-up. DISCUSSION The present RCT is the first study that applies evaluative conditioning training in the OCD clinical sample. It will clarify the effect of the evaluative conditioning method alone and with tDCS on disgust reduction in patients with contamination-based OCD. It will provide initial evidence for such an emotion modulation method in the OCD population. The effect of this emotion-focused protocol on cognitive functions and electroencephalogram components is also of interest. TRIAL REGISTRATION ClinicalTrials.gov, NCT05907369. Registered on 16 June 2023. Retrospectively registered.
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Affiliation(s)
| | - Ali Moghimi
- Rayan Research Center for Neuroscience and Behavior, Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
| | - Javad Salehi Fadardi
- School of Community and Global Health, Claremont Graduate University, Claremont, USA
- Department of Psychology, Faculty of Education and Psychology, Ferdowsi University of Mashhad, Mashhad, Iran
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Cui H, Zhang Y, Zhao Y, Zhao Y, Ding Q, Chen R, Manssuer L, Zhang C, Liu W, Li D, Sun B, Voon V. Mechanisms underlying capsulotomy for refractory obsessive-compulsive disorder: neural correlates of negative affect processing overlap with deep brain stimulation targets. Mol Psychiatry 2023; 28:3063-3074. [PMID: 36878966 PMCID: PMC10615758 DOI: 10.1038/s41380-023-01989-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 01/13/2023] [Accepted: 01/30/2023] [Indexed: 03/08/2023]
Abstract
Ablative procedures such as anterior capsulotomy are potentially effective in refractory obsessive-compulsive disorder (OCD). Converging evidence suggests the ventral internal capsule white matter tracts traversing the rostral cingulate and ventrolateral prefrontal cortex and thalamus is the optimal target for clinical efficacy across multiple deep brain stimulation targets for OCD. Here we ask which prefrontal regions and underlying cognitive processes might be implicated in the effects of capsulotomy by using both task fMRI and neuropsychological tests assessing OCD-relevant cognitive mechanisms known to map across prefrontal regions connected to the tracts targeted in capsulotomy. We tested OCD patients at least 6 months post-capsulotomy (n = 27), OCD controls (n = 33) and healthy controls (n = 34). We used a modified aversive monetary incentive delay paradigm with negative imagery and a within session extinction trial. Post-capsulotomy OCD subjects showed improved OCD symptoms, disability and quality of life with no differences in mood or anxiety or cognitive task performance on executive, inhibition, memory and learning tasks. Task fMRI revealed post-capsulotomy decreases in the nucleus accumbens during negative anticipation, and in the left rostral cingulate and left inferior frontal cortex during negative feedback. Post-capsulotomy patients showed attenuated accumbens-rostral cingulate functional connectivity. Rostral cingulate activity mediated capsulotomy improvement on obsessions. These regions overlap with optimal white matter tracts observed across multiple stimulation targets for OCD and might provide insights into further optimizing neuromodulation approaches. Our findings also suggest that aversive processing theoretical mechanisms may link ablative, stimulation and psychological interventions.
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Affiliation(s)
- Hailun Cui
- Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom
| | - Yingying Zhang
- Department of Neurosurgery, Center for Functional Neurosurgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Neural and Intelligence Engineering Centre, Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, Shanghai, China
| | - Yijie Zhao
- Neural and Intelligence Engineering Centre, Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, Shanghai, China
| | - Ying Zhao
- Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom
| | - Qiong Ding
- Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom
| | - Ruiqin Chen
- Neural and Intelligence Engineering Centre, Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, Shanghai, China
| | - Luis Manssuer
- Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom
| | - Chencheng Zhang
- Department of Neurosurgery, Center for Functional Neurosurgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenjuan Liu
- Department of Psychological Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.
| | - Dianyou Li
- Department of Neurosurgery, Center for Functional Neurosurgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Bomin Sun
- Department of Neurosurgery, Center for Functional Neurosurgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Valerie Voon
- Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom.
- Neural and Intelligence Engineering Centre, Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, Shanghai, China.
- Cambridgeshire and Peterborough NHS Foundation Trust, Cambridge, United Kingdom.
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Jalal B, Chamberlain SR, Sahakian BJ. Obsessive-compulsive disorder: Etiology, neuropathology, and cognitive dysfunction. Brain Behav 2023; 13:e3000. [PMID: 37137502 PMCID: PMC10275553 DOI: 10.1002/brb3.3000] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 03/14/2023] [Accepted: 03/24/2023] [Indexed: 05/05/2023] Open
Abstract
BACKGROUND This review provides an overview of obsessive-compulsive disorder (OCD) symptoms, including the four partially distinct subtypes of the disorder, current diagnostic criteria, and common comorbidities. Critically, it focuses on the etiology of OCD, including its underlying neuropathology, and examines cognitive dysfunction in OCD. METHODS This review study was conducted by library method. RESULTS We show how dysfunction in cortico-striato-thalamo-cortical (CSTC) circuits may underpin symptoms; and shed light on the putative neurochemistry within these loops such as the role of serotonin, dopamine, and glutamate systems. We also show how OCD is characterized by cognitive dysfunction including problems in cognitive flexibility, visuospatial memory, response inhibition, and goal-directed behavior, linked to aberrant activity within CSTC circuits. CONCLUSIONS In brief, research questions we shed light on include (1) what are the symptoms in OCD; (2) what is the etiology of the disorder and do existing models explain OCD; and (3) what are key cognitive deficits in OCD and do these improve with treatment?
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Affiliation(s)
- Baland Jalal
- Department of PsychiatryUniversity of Cambridge School of Clinical MedicineCambridgeUK
- Behavioural and Clinical Neuroscience Institute, Department of PsychologyUniversity of CambridgeCambridgeUK
| | - Samuel R. Chamberlain
- Faculty of Medicine, Department of PsychiatryUniversity of SouthamptonSouthamptonUK
- Specialist Clinic for Impulsive and Compulsive Disorders, and the Southern Gambling ServiceSouthern Health NHS Foundation TrustSouthamptonUK
| | - Barbara J. Sahakian
- Department of PsychiatryUniversity of Cambridge School of Clinical MedicineCambridgeUK
- Behavioural and Clinical Neuroscience Institute, Department of PsychologyUniversity of CambridgeCambridgeUK
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van Leeuwen W, van der Straten A, Bögemann SA, Denys D, van Marle H, van Wingen G. Psychological distress modulates dorsal anterior cingulate cortex responses to salient stimuli in obsessive-compulsive disorder. J Affect Disord 2023; 325:185-193. [PMID: 36587910 DOI: 10.1016/j.jad.2022.12.145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 12/23/2022] [Accepted: 12/25/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND Patients with obsessive-compulsive disorder (OCD) experience an exacerbation of symptoms under psychological distress. The neurobiological underpinnings of this effect of stress remain elusive. Here, we induced psychological distress to explore its effect on neural reactivity of the salience network during a symptom provocation task. METHODS Twenty-three patients with OCD and twenty-three healthy volunteers underwent functional magnetic resonance imaging scanning after stress induction and a control condition in a cross-over design. Psychological distress was induced using the socially evaluated cold pressor test (SECPT) and neural responses were measured during a symptom provocation task. RESULTS OCD participants showed a blunted cortisol response to the stressor. We found a group by stress interaction effect in the dorsal anterior cingulate cortex (dACC), such that psychological distress reduced dACC reactivity to emotionally salient pictures in OCD participants, whereas it increased dACC reactivity in healthy controls. LIMITATIONS A considerable proportion of OCD participants was on medication, and the neuroimaging session was conducted more than 1 h after the initial stressor. CONCLUSIONS Considering this timeline, we speculate that the blunted dACC reactivity towards emotionally salient pictures in OCD participants may reflect impaired emotion regulation in the aftermath of stress.
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Affiliation(s)
- W van Leeuwen
- Amsterdam UMC, University of Amsterdam, Department of Psychiatry, Amsterdam Neuroscience, Meibergdreef 5, PO Box 22660, 1100 DD Amsterdam, the Netherlands.
| | - A van der Straten
- Amsterdam UMC, University of Amsterdam, Department of Psychiatry, Amsterdam Neuroscience, Meibergdreef 5, PO Box 22660, 1100 DD Amsterdam, the Netherlands
| | - S A Bögemann
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Kapittelweg 29, 6525 EN Nijmegen, the Netherlands
| | - D Denys
- Amsterdam UMC, University of Amsterdam, Department of Psychiatry, Amsterdam Neuroscience, Meibergdreef 5, PO Box 22660, 1100 DD Amsterdam, the Netherlands
| | - H van Marle
- Amsterdam UMC, University of Amsterdam, Department of Psychiatry, Amsterdam Neuroscience, Meibergdreef 5, PO Box 22660, 1100 DD Amsterdam, the Netherlands; Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Psychiatry, Amsterdam Neuroscience, De Boelelaan 1117, 1081 HV Amsterdam, the Netherlands; GGZ inGeest Specialized Mental Health Care, Research and Innovation, Oldenaller 1, 1081 HJ Amsterdam, the Netherlands
| | - G van Wingen
- Amsterdam UMC, University of Amsterdam, Department of Psychiatry, Amsterdam Neuroscience, Meibergdreef 5, PO Box 22660, 1100 DD Amsterdam, the Netherlands
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An Integrative Model for Understanding Obsessive-Compulsive Disorder: Merging Cognitive Behavioral Theory with Insights from Clinical Neuroscience. J Clin Med 2022; 11:jcm11247379. [PMID: 36555995 PMCID: PMC9784452 DOI: 10.3390/jcm11247379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/01/2022] [Accepted: 12/07/2022] [Indexed: 12/15/2022] Open
Abstract
Several models have been proposed for the emergence and maintenance of obsessive-compulsive disorder (OCD). Although these models have provided important insights and inspired treatment development, no single model has yet sufficiently accounted for the complexed phenotype of the disorder. In the current paper, we propose a novel model that integrates elements from cognitive behavioral models of OCD with neurocognitive approaches to the disorder. This Reciprocal Interaction Model (RIM) for OCD is based on two assumptions: (a) similar observed symptoms can stem from different etiological processes; and (b) neuropsychological deficits (such as reduced response inhibition and overreliance on the habit formation system) and cognitive behavioral processes (such as temporary reduction in anxiety after engaging in compulsive behaviors) mutually affect each other such that abnormalities in one system influence the second system and vice-versa-creating a vicious cycle of pathological processes. Indeed, the bidirectional inhibitory connection between anxiety/obsessions and executive control is at the heart of the model. We begin by briefly reviewing the current models for OCD. We then move on to describe the RIM, the supporting evidence for the model, the model's predictions, and potential clinical implications.
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Abstract
BACKGROUND The role of memory in obsessive-compulsive disorder (OCD) has been an area of research that has yielded mixed results, particularly in prospective memory (PM) functioning. Hence, one objective of the study was to assess PM deficits in patients with OCD. Also, research in this area has been sparse, and most researchers have used questionnaires and people with subclinical symptoms of OCD, which might have impacted the generalizability of the findings. Thus, the second objective was to assess PM functioning using a performance-based task in persons with OCD having clinical symptoms. METHODS This is a cross-sectional comparative study of 30 adults with OCD and 30 adults without psychiatric morbidity. The tools used were Dimensional Yale-Brown Obsessive-Compulsive Scale (DY-BOCS), Hamilton Depression Rating Scale (HAMD), General Health Questionnaire-12 (GHQ 12), and Cambridge Prospective Memory Test (CAMPROMPT). RESULTS Event-based PM was significantly poor in the OCD group. In time-based PM, no significant difference was found between the groups. Three subgroups in OCD, predominantly obsessions, predominantly compulsions, and mixed types, did not differ significantly with respect to PM. CONCLUSION The result suggested a deficit of event-based PM in OCD, which can help understand the psychopathology of memory deficit in the clinical population and bridge the gap with respect to memory research in this domain.
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Affiliation(s)
| | - Prasanta Kumar Roy
- Dept. of Clinical Psychology, Institute of Psychiatry, Kolkata, West Bengal, India
| | - Pradeep Kumar Saha
- Dept. of Psychiatry, Institute of Postgraduate Medical Education and Research (IPGMER), Kolkata, West Bengal, India
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Zhang Y, Alwin Prem Anand A, Bode L, Ludwig H, Emrich HM, Dietrich DE. Word recognition memory and serum levels of Borna disease virus specific circulating immune complexes in obsessive-compulsive disorder. BMC Psychiatry 2022; 22:597. [PMID: 36076225 PMCID: PMC9454108 DOI: 10.1186/s12888-022-04208-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 08/09/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Borna disease virus 1 (BoDV-1) is a non-segmented, negative-strand RNA virus that persistently infects mammals including humans. BoDV-1 worldwide occurring strains display highly conserved genomes with overlapping genetic signatures between those of either human or animal origin. BoDV-1 infection may cause behavioral and cognitive disturbances in animals but has also been found in human major depression and obsessive-compulsive disorder (OCD). However, the impact of BoDV-1 on memory functions in OCD is unknown. METHOD To evaluate the cognitive impact of BoDV-1 in OCD, event-related brain potentials (ERPs) were recorded in a continuous word recognition paradigm in OCD patients (n = 16) and in healthy controls (n = 12). According to the presence of BoDV-1-specific circulating immune complexes (CIC), they were divided into two groups, namely group H (high) and L (low), n = 8 each. Typically, ERPs to repeated items are characterized by more positive waveforms beginning approximately 250 ms post-stimulus. This "old/new effect" has been shown to be relevant for memory processing. The early old/new effect (ca. 300-500 ms) with a frontal distribution is proposed to be a neural correlate of familiarity-based recognition. The late old/new effect (post-500 ms) is supposed to reflect memory recollection processes. RESULTS OCD patients were reported to show a normal early old/new effect and a reduced late old/new effect compared to normal controls. In our study, OCD patients with a high virus load (group H) displayed exactly these effects, while patients with a low virus load (group L) did not differ from healthy controls. CONCLUSION These results confirmed that OCD patients had impaired memory recollection processes compared to the normal controls which may to some extent be related to their BoDV-1 infection.
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Affiliation(s)
- Yuanyuan Zhang
- Clinic of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, 30625 Hanover, Germany. .,Present Address: Social Psychiatry Counseling Center, Region Hannover, Podbielskistr. 157, 30177, Hanover, Germany.
| | - A Alwin Prem Anand
- grid.10423.340000 0000 9529 9877Clinic of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, 30625 Hanover, Germany
| | - Liv Bode
- Freelance Bornavirus Workgroup, Beerenstr. 41, 14163 Berlin, Germany
| | - Hanns Ludwig
- Freelance Bornavirus Workgroup, Beerenstr. 41, 14163 Berlin, Germany
| | - Hinderk M. Emrich
- grid.10423.340000 0000 9529 9877Clinic of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, 30625 Hanover, Germany
| | - Detlef E. Dietrich
- grid.10423.340000 0000 9529 9877Clinic of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, 30625 Hanover, Germany ,AMEOS Klinikum Hildesheim, Goslarsche Landstr. 60, 31135 Hildesheim, Germany ,grid.412970.90000 0001 0126 6191Center for Systems Neuroscience Hannover, Hanover, Germany
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11
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The sense of agency for brain disorders: A comprehensive review and proposed framework. Neurosci Biobehav Rev 2022; 139:104759. [PMID: 35780975 DOI: 10.1016/j.neubiorev.2022.104759] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/24/2022] [Accepted: 06/26/2022] [Indexed: 11/21/2022]
Abstract
Sense of Agency (SoA) refers to the feeling of control over voluntary actions and the outcomes of those actions. Several brain disorders are characterized by an abnormal SoA. To date, there is no robust treatment for aberrant agency across disorders; this is, in large part, due to gaps in our understanding of the cognitive mechanisms and neural correlates of the SoA. This apparent gap stems from a lack of synthesis in established findings. As such, the current review reconciles previously established findings into a novel neurocognitive framework for future investigations of the SoA in brain disorders, which we term the Agency in Brain Disorders Framework (ABDF). In doing so, we highlight key top-down and bottom-up cues that contribute to agency prospectively (i.e., prior to action execution) and retrospectively (i.e., after action execution). We then examine brain disorders, including schizophrenia, autism spectrum disorders (ASD), obsessive-compulsive disorders (OCD), and cortico-basal syndrome (CBS), within the ABDF, to demonstrate its potential utility in investigating neurocognitive mechanisms underlying phenotypically variable presentations of the SoA in brain disorders.
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12
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Yan H, Shan X, Li H, Liu F, Guo W. Abnormal spontaneous neural activity in hippocampal-cortical system of patients with obsessive-compulsive disorder and its potential for diagnosis and prediction of early treatment response. Front Cell Neurosci 2022; 16:906534. [PMID: 35910254 PMCID: PMC9334680 DOI: 10.3389/fncel.2022.906534] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 06/30/2022] [Indexed: 11/25/2022] Open
Abstract
Early brain functional changes induced by pharmacotherapy in patients with obsessive-compulsive disorder (OCD) in relation to drugs per se or because of the impact of such drugs on the improvement of OCD remain unclear. Moreover, no neuroimaging biomarkers are available for diagnosis of OCD and prediction of early treatment response. We performed a longitudinal study involving 34 patients with OCD and 36 healthy controls (HCs). Patients with OCD received 5-week treatment with paroxetine (40 mg/d). Resting-state functional magnetic resonance imaging (fMRI), regional homogeneity (ReHo), support vector machine (SVM), and support vector regression (SVR) were applied to acquire and analyze the imaging data. Compared with HCs, patients with OCD had higher ReHo values in the right superior temporal gyrus and bilateral hippocampus/parahippocampus/fusiform gyrus/cerebellum at baseline. ReHo values in the left hippocampus and parahippocampus decreased significantly after treatment. The reduction rate (RR) of ReHo values was positively correlated with the RRs of the scores of Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) and obsession. Abnormal ReHo values at baseline could serve as potential neuroimaging biomarkers for OCD diagnosis and prediction of early therapeutic response. This study highlighted the important role of the hippocampal-cortical system in the neuropsychological mechanism underlying OCD, pharmacological mechanism underlying OCD treatment, and the possibility of building models for diagnosis and prediction of early treatment response based on spontaneous activity in the hippocampal-cortical system.
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Affiliation(s)
- Haohao Yan
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Xiaoxiao Shan
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Huabing Li
- Department of Radiology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Feng Liu
- Department of Radiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Wenbin Guo
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
- Department of Psychiatry, The Third People’s Hospital of Foshan, Foshan, China
- Department of Psychiatry, Qiqihar Medical University, Qiqihar, China
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13
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Azriel O, Britton JC, Gober CD, Pine DS, Bar-Haim Y. Development and validation of the Attention Bias Questionnaire (ABQ). Int J Methods Psychiatr Res 2022; 31:e1905. [PMID: 35297127 PMCID: PMC9159693 DOI: 10.1002/mpr.1905] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 12/18/2021] [Accepted: 01/12/2022] [Indexed: 11/11/2022] Open
Abstract
OBJECTIVES Various psychopathologies are associated with threat-related attention biases, which are typically measured using mechanized behavioral tasks. While useful and objective, behavioral measures do not capture the subjective experience of biased attention in daily-living. To complement extant behavioral measures, we developed and validated a self-report measure of threat-related attention bias - the Attention Bias Questionnaire (ABQ). METHODS The ABQ consists of nine items reflecting the subjective experience of attention bias towards threats. To enable personalized relevance in threat-content, the general term "threat" was used, and respondents were instructed to refer to specific things that threaten them personally. In a set of five studies, the ABQ was developed and validated. Internal consistency, discriminant validity, test-retest reliability, and convergent validity were tested. RESULTS The ABQ emerged as a coherent and stable measure with two sub-scales: Engagement with Threat and Difficulty to Disengage from Threat. ABQ scores were positively correlated with trait anxiety, social anxiety, PTSD, and depression, as well as behaviorally measured attention bias. CONCLUSION Assessing the subjective experience of threat-related attention bias can enrich existing knowledge about the cognitive mechanisms underlying psychopathology and complement extant behavioral bias measures in research and clinical evaluation.
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Affiliation(s)
- Omer Azriel
- School of Psychological Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Jennifer C Britton
- Department of Psychology, University of Miami, Coral Gables, Florida, USA
| | - Chelsea D Gober
- School of Psychological Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Daniel S Pine
- Section on Developmental Affective Neuroscience, National Institute of Mental Health, Bethesda, Maryland, USA
| | - Yair Bar-Haim
- School of Psychological Sciences, Tel Aviv University, Tel Aviv, Israel.,Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
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14
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Kaplan CM, Solway A. Perceptual Decision Impairments Linked to Obsessive-Compulsive Symptoms are Substantially Driven by State-Based Effects. COMPUTATIONAL PSYCHIATRY (CAMBRIDGE, MASS.) 2022; 6:79-95. [PMID: 38774779 PMCID: PMC11104319 DOI: 10.5334/cpsy.87] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 04/13/2022] [Indexed: 11/20/2022]
Abstract
Computational models of decision making have identified a relationship between obsessive-compulsive symptoms (OCS), both in the general population and in patients, and impairments in perceptual evidence accumulation. Some studies have interpreted these deficits to reflect global disease traits which give rise to clusters of OCS. Such assumptions are not uncommon, even if implicit, in computational psychiatry more broadly. However, it is well established that state- and trait-symptom scores are often correlated (e.g., state and trait anxiety), and the extent to which perceptual deficits are actually explained by state-based symptoms is unclear. State-based symptoms may give rise to information processing differences in a number of ways, including the mechanistically less interesting possibility of tying up working memory and attentional resources for off-task processing. In a general population sample (N = 150), we investigated the extent to which previously identified impairments in perceptual evidence accumulation were related to trait vs stated-based OCS. In addition, we tested whether differences in working memory capacity moderated state-based impairments, such that impairments were worse in individuals with lower working memory capacity. We replicated previous work demonstrating a negative relationship between the rate of evidence accumulation and trait-based OCS when state-based symptoms were unaccounted for. When state-based effects were included in the model, they captured a significant degree of impairment while trait-based effects were attenuated, although they did not disappear completely. We did not find evidence that working memory capacity moderated the state-based effects. Our work suggests that investigating the relationship between information processing and state-based symptoms may be important more generally in computational psychiatry beyond this specific context.
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Affiliation(s)
- Claire M. Kaplan
- Department of Psychology, University of Maryland-College Park, MD 20742, USA
| | - Alec Solway
- Department of Psychology and Program in Neuroscience and Cognitive Science, University of Maryland-College Park, MD 20742, US
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15
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Wynn SC, Nyhus E. Brain activity patterns underlying memory confidence. Eur J Neurosci 2022; 55:1774-1797. [PMID: 35304774 PMCID: PMC9314063 DOI: 10.1111/ejn.15649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 02/15/2022] [Accepted: 03/14/2022] [Indexed: 11/26/2022]
Abstract
The primary aim of this review is to examine the brain activity patterns that are related to subjectively perceived memory confidence. We focus on the main brain regions involved in episodic memory: the medial temporal lobe (MTL), prefrontal cortex (PFC), and posterior parietal cortex (PPC), and relate activity in their subregions to memory confidence. How this brain activity in both the encoding and retrieval phase is related to (subsequent) memory confidence ratings will be discussed. Specifically, encoding related activity in MTL regions and ventrolateral PFC mainly shows a positive linear increase with subsequent memory confidence, while dorsolateral and ventromedial PFC activity show mixed patterns. In addition, encoding-related PPC activity seems to only have indirect effects on memory confidence ratings. Activity during retrieval in both the hippocampus and parahippocampal cortex increases with memory confidence, especially during high-confident recognition. Retrieval-related activity in the PFC and PPC show mixed relationships with memory confidence, likely related to post-retrieval monitoring and attentional processes, respectively. In this review, these MTL, PFC, and PPC activity patterns are examined in detail and related to their functional roles in memory processes. This insight into brain activity that underlies memory confidence is important for our understanding of brain-behaviour relations and memory-guided decision making.
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Affiliation(s)
- Syanah C Wynn
- Department of Psychology and Program in Neuroscience, Bowdoin College, Brunswick, ME, United States
| | - Erika Nyhus
- Department of Psychology and Program in Neuroscience, Bowdoin College, Brunswick, ME, United States
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16
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Direct Gaze Holds Attention, but Not in Individuals with Obsessive-Compulsive Disorder. Brain Sci 2022; 12:brainsci12020288. [PMID: 35204051 PMCID: PMC8870087 DOI: 10.3390/brainsci12020288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/14/2022] [Accepted: 02/17/2022] [Indexed: 11/29/2022] Open
Abstract
The attentional response to eye-gaze stimuli is still largely unexplored in individuals with obsessive-compulsive disorder (OCD). Here, we focused on an attentional phenomenon according to which a direct-gaze face can hold attention in a perceiver. Individuals with OCD and a group of matched healthy controls were asked to discriminate, through a speeded manual response, a peripheral target. Meanwhile, a task-irrelevant face displaying either direct gaze (in the eye-contact condition) or averted gaze (in the no-eye-contact condition) was also presented at the centre of the screen. Overall, the latencies were slower for faces with direct gaze than for faces with averted gaze; however, this difference was reliable in the healthy control group but not in the OCD group. This suggests the presence of an unusual attentional response to direct gaze in this clinical population.
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17
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Watson D, Levin-Aspenson HF, Waszczuk MA, Conway CC, Dalgleish T, Dretsch MN, Eaton NR, Forbes MK, Forbush KT, Hobbs KA, Michelini G, Nelson BD, Sellbom M, Slade T, South SC, Sunderland M, Waldman I, Witthöft M, Wright AGC, Kotov R, Krueger RF. Validity and utility of Hierarchical Taxonomy of Psychopathology (HiTOP): III. Emotional dysfunction superspectrum. World Psychiatry 2022; 21:26-54. [PMID: 35015357 PMCID: PMC8751579 DOI: 10.1002/wps.20943] [Citation(s) in RCA: 91] [Impact Index Per Article: 45.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The Hierarchical Taxonomy of Psychopathology (HiTOP) is a quantitative nosological system that addresses shortcomings of traditional mental disorder diagnoses, including arbitrary boundaries between psychopathology and normality, frequent disorder co-occurrence, substantial heterogeneity within disorders, and diagnostic unreliability over time and across clinicians. This paper reviews evidence on the validity and utility of the internalizing and somatoform spectra of HiTOP, which together provide support for an emotional dysfunction superspectrum. These spectra are composed of homogeneous symptom and maladaptive trait dimensions currently subsumed within multiple diagnostic classes, including depressive, anxiety, trauma-related, eating, bipolar, and somatic symptom disorders, as well as sexual dysfunction and aspects of personality disorders. Dimensions falling within the emotional dysfunction superspectrum are broadly linked to individual differences in negative affect/neuroticism. Extensive evidence establishes that dimensions falling within the superspectrum share genetic diatheses, environmental risk factors, cognitive and affective difficulties, neural substrates and biomarkers, childhood temperamental antecedents, and treatment response. The structure of these validators mirrors the quantitative structure of the superspectrum, with some correlates more specific to internalizing or somatoform conditions, and others common to both, thereby underlining the hierarchical structure of the domain. Compared to traditional diagnoses, the internalizing and somatoform spectra demonstrated substantially improved utility: greater reliability, larger explanatory and predictive power, and greater clinical applicability. Validated measures are currently available to implement the HiTOP system in practice, which can make diagnostic classification more useful, both in research and in the clinic.
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Affiliation(s)
- David Watson
- Department of Psychology, University of Notre Dame, South Bend, IN, USA
| | | | - Monika A Waszczuk
- Department of Psychiatry, Stony Brook University, Stony Brook, NY, USA
| | | | - Tim Dalgleish
- Medical Research Council, Cognition and Brain Sciences Unit, University of Cambridge, Cambridge, UK
- Cambridgeshire and Peterborough NHS Foundation Trust, Cambridge, UK
| | - Michael N Dretsch
- US Army Medical Research Directorate - West, Walter Reed Army Institute of Research, Joint Base Lewis-McChord, WA, USA
| | - Nicholas R Eaton
- Department of Psychology, Stony Brook University, Stony Brook, NY, USA
| | - Miriam K Forbes
- Centre for Emotional Health, Department of Psychology, Macquarie University, Sydney, NSW, Australia
| | - Kelsie T Forbush
- Department of Psychology, University of Kansas, Lawrence, KS, USA
| | - Kelsey A Hobbs
- Department of Psychology, University of Minnesota, Minneapolis, MN, USA
| | - Giorgia Michelini
- Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, CA, USA
| | - Brady D Nelson
- Department of Psychology, Stony Brook University, Stony Brook, NY, USA
| | - Martin Sellbom
- Department of Psychology, University of Otago, Dunedin, New Zealand
| | - Tim Slade
- Matilda Centre for Research in Mental Health and Substance Use, University of Sydney, Sydney, NSW, Australia
| | - Susan C South
- Department of Psychological Sciences, Purdue University, West Lafayette, IN, USA
| | - Matthew Sunderland
- Matilda Centre for Research in Mental Health and Substance Use, University of Sydney, Sydney, NSW, Australia
| | - Irwin Waldman
- Department of Psychology, Emory University, Atlanta, GA, USA
| | - Michael Witthöft
- Department for Clinical Psychology, Psychotherapy, and Experimental Psychopathology, University of Mainz, Mainz, Germany
| | - Aidan G C Wright
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Roman Kotov
- Department of Psychiatry, Stony Brook University, Stony Brook, NY, USA
| | - Robert F Krueger
- Department of Psychology, University of Minnesota, Minneapolis, MN, USA
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18
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Yacou MA, Chowdury A, Easter P, Hanna GL, Rosenberg DR, Diwadkar VA. Sustained attention induces altered effective connectivity of the ascending thalamo-cortical relay in obsessive-compulsive disorder. Front Psychiatry 2022; 13:869106. [PMID: 36032258 PMCID: PMC9402224 DOI: 10.3389/fpsyt.2022.869106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 07/18/2022] [Indexed: 11/13/2022] Open
Abstract
Abnormal function of the thalamo-cortical relay is considered a hallmark of obsessive-compulsive disorder (OCD) and aberrant network interactions may underpin many of the clinical and cognitive symptoms that characterize the disorder. Several statistical approaches have been applied to in vivo fMRI data to support the general loss of thalamo-cortical connectivity in OCD. However, (a) few studies have assessed the contextual constraints under which abnormal network interactions arise or (b) have used methods of effective connectivity to understand abnormal network interactions. Effective connectivity is a particularly valuable method as it describes the putative causal influences that brain regions exert over each other, as opposed to the largely statistical consistencies captured in functional connectivity techniques. Here, using dynamic causal modeling (DCM), we evaluated how attention demand induced inter-group differences (HC ≠ OCD) in effective connectivity within a motivated thalamo-cortical network. Of interest was whether these effects were observed on the ascending thalamo-cortical relay, essential for the sensory innervation of the cortex. fMRI time series data from sixty-two participants (OCD, 30; HC, 32) collected using an established sustained attention task were submitted to a space of 162 competing models. Across the space, models distinguished between competing hypotheses of thalamo-cortical interactions. Bayesian model selection (BMS) identified marginally differing likely generative model architectures in OCD and HC groups. Bayesian model averaging (BMA), was used to weight connectivity parameter estimates across all models, with each parameter weighted by each model's posterior probability, thus providing more stable estimates of effective connectivity. Inferential statistical analyses of estimated parameters revealed two principal results: (1) Significantly reduced intrinsic connectivity of the V1 → SPC pathway in OCD, suggested connective weakness in the early constituents of the dorsal visual pathway; (2) More pertinent with the discovery possibilities afforded by DCM, sustained attention in OCD patients induced significantly reduced contextual modulation of the ascending relay from the thalamus to the prefrontal cortex. These results form an important complement to our understanding of the contextual bases of thalamo-cortical network deficits in OCD, emphasizing vulnerability of the ascending relay.
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Affiliation(s)
- Mario A Yacou
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, United States
| | - Asadur Chowdury
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, United States
| | - Philip Easter
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, United States
| | - Gregory L Hanna
- Department of Psychiatry, University of Michigan, Ann Arbor, MI, United States
| | - David R Rosenberg
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, United States
| | - Vaibhav A Diwadkar
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, United States
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19
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Guillén-Font MA, Cervera M, Puigoriol E, FOGUET-BOREU QUINTÍ, Arrufat FX, Serra-Millàs M. Insight in Obsessive-Compulsive Disorder: Relationship With Sociodemographic and Clinical Characteristics. J Psychiatr Pract 2021; 27:427-438. [PMID: 34768265 PMCID: PMC8575164 DOI: 10.1097/pra.0000000000000580] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Insight is considered a multidimensional concept and, in the context of obsessive-compulsive disorder (OCD), impairment in insight has been widely reported to be associated with severity and other clinical and sociodemographic variables. However, the studies concerning insight in OCD have produced heterogenous data as a result of the scales used to measure insight. To overcome this heterogeneity, the study presented here used 4 different widely used and validated insight scales. The objective was to evaluate various aspects of insight using these scales to identify the relationships between different aspects of insight and clinical and sociodemographic variables to assess which scale or scales might possess greater efficiency in clinical practice. For this purpose, a descriptive, observational, and cross-sectional study of 81 patients in treatment in a mental health center was conducted. Patients were evaluated using the Brown Assessment of Beliefs Scale, the Overvalued Ideas Scale, the Scale of Unawareness of Mental Disorders, the Yale-Brown Obsessive Compulsive Scale, the Clinical Global Impressions Scale, the Global Assessment of Functioning Scale, and the Rey-Osterrieth Complex Figure Test. The results reported significant relationships between insight and scores on the Yale-Brown Obsessive Compulsive Scale (Thoughts, Compulsions, and Total scales), Clinical Global Impressions Scale, and the Global Assessment of Functioning Scale, and significant differences with regard to sex, level of education, working status, and course of the disorder. A correlation analysis was conducted to assess the relationships among the 4 insight scales. The results of this analysis suggest that the scales that measure insight in a multidimensional way (Brown Assessment of Beliefs Scale and Overvalued Ideas Scale) provide more information about the severity of the disorder in patients with OCD.
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20
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Neurogenetics of dynamic connectivity patterns associated with obsessive-compulsive symptoms in healthy children. BIOLOGICAL PSYCHIATRY GLOBAL OPEN SCIENCE 2021; 2:411-420. [DOI: 10.1016/j.bpsgos.2021.11.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/28/2021] [Accepted: 11/14/2021] [Indexed: 01/31/2023] Open
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21
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Bouwens van der Vlis TAM, Duits A, van de Veerdonk MMGH, Mulders AEP, Schruers KRJ, Temel Y, Ackermans L, Leentjens AFG. Cognitive Outcome After Deep Brain Stimulation for Refractory Obsessive-Compulsive Disorder: A Systematic Review. Neuromodulation 2021; 25:185-194. [PMID: 34546638 DOI: 10.1111/ner.13534] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 06/23/2021] [Accepted: 07/28/2021] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Deep brain stimulation (DBS) is an effective treatment for refractory obsessive-compulsive disorder (OCD). Neuropsychological assessment contributes to DBS treatment in several ways: it monitors the cognitive safety of the treatment, identifies beneficial or detrimental cognitive side effects and it could aid to explain variability in treatment outcome, and possibly the treatment's working mechanism(s). BACKGROUND This systematic review assessed the cognitive safety of DBS for OCD and explored whether changes in cognitive function may help explain its working mechanism(s). MATERIALS AND METHODS EMBASE, PubMed/Medline, Psycinfo, and the Cochrane Library were systematically searched for studies reporting cognitive outcomes following DBS for OCD. Searches were completed in November 2020. Included studies were appraised for study design and quality according to National Heart, Lung and Blood Institute (NHLBI) quality assessment tools. RESULTS Five randomized controlled trials and ten observational studies comprising a total of 178 patients were analyzed collectively. Variable outcomes of DBS were observed in the domains of attention, memory, executive functioning, and in particular cognitive flexibility. CONCLUSION Although individual studies generally do not report cognitive deterioration after DBS for OCD, the variability of study designs and the multitude of cognitive measures used, precluded a meta-analysis to confirm its safety, and recognition of a cognitive pattern through which the efficacy of DBS for OCD might be explained. In future, prospective studies should preferably include a standardized neuropsychological assessment battery specifically addressing executive functioning and have a longer-term follow-up in order to demonstrate the cognitive safety of the procedure. Such prospective and more uniform data collection may also contribute to our understanding of the working mechanisms of DBS in OCD.
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Affiliation(s)
| | - Annelien Duits
- Department of Psychiatry and Neuropsychology, Maastricht University Medical Center, Maastricht, The Netherlands.,School of Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | | | - Anne E P Mulders
- Department of Psychiatry and Neuropsychology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Koen R J Schruers
- Department of Psychiatry and Neuropsychology, Maastricht University Medical Center, Maastricht, The Netherlands.,School of Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands.,Mondriaan Mental Health Center, Maastricht, The Netherlands
| | - Yasin Temel
- Department of Neurosurgery, Maastricht University Medical Centre, Maastricht, The Netherlands.,School of Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Linda Ackermans
- Department of Neurosurgery, Maastricht University Medical Centre, Maastricht, The Netherlands.,School of Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Albert F G Leentjens
- Department of Psychiatry and Neuropsychology, Maastricht University Medical Center, Maastricht, The Netherlands.,School of Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
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22
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Goernert PN, Corenblum B, Watier N. Mood states effect retrieval not encoding in item-method directed forgetting. JOURNAL OF COGNITIVE PSYCHOLOGY 2021. [DOI: 10.1080/20445911.2021.1903013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | - Barry Corenblum
- Department of Psychology, Brandon University, Brandon, Canada
| | - Nicholas Watier
- Department of Psychology, Brandon University, Brandon, Canada
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23
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Jurng J, Park H, Kim T, Park I, Moon SY, Lho SK, Kim M, Kwon JS. Smaller volume of posterior thalamic nuclei in patients with obsessive-compulsive disorder. NEUROIMAGE-CLINICAL 2021; 30:102686. [PMID: 34215156 PMCID: PMC8102624 DOI: 10.1016/j.nicl.2021.102686] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 04/15/2021] [Accepted: 04/17/2021] [Indexed: 12/25/2022]
Abstract
Thalamic subregional volumes were compared between medication-free OCD and HC groups. Left posterior thalamic nuclei volumes were smaller in OCD patients compared to HCs. The smaller thalamic subregional volumes were associated with later onset of OCD. Posterior thalamic nuclei volume may reflect OCD subtype related to the age of onset.
Aim Although the thalamus is a key structure in the pathophysiology of obsessive–compulsive disorder (OCD), reports regarding thalamic volume alterations in OCD patients have been inconsistent. Because the thalamus has a complex structure with distinct functions, we investigated subregional volume changes in the thalamus and their relationship with clinical attributes in a large sample of medication-free OCD patients. Methods We collected T1-weighted magnetic resonance imaging data from 177 OCD patients and 152 healthy controls (HCs). Using FreeSurfer, we segmented the thalamus into 12 nuclei groups; subregional volumes were compared between groups using an analysis of covariance. The relationships between altered thalamic volumes and OC symptom severity and OCD onset age were investigated. Results Compared to HCs, OCD patients showed a smaller volume of the left posterior thalamic nuclei. Other thalamic subregions did not show significant group differences. There was a significant negative correlation between the volume of the left posterior thalamic nuclei and the age of OCD onset but no significant correlation with OC symptom severity. Conclusions This is the first study to report reduced volume of the posterior thalamic nuclei in a large sample of medication-free OCD patients. Our results suggest that the volume of posterior thalamic nuclei may reflect different pathophysiological mechanisms of OCD subtypes related to the age of onset. Additional studies with pediatric samples are required to clarify the relationship between thalamic alterations and the onset age of OCD.
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Affiliation(s)
- Jinhyung Jurng
- Department of Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hyungyou Park
- Department of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Republic of Korea
| | - Taekwan Kim
- Department of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Republic of Korea
| | - Inkyung Park
- Department of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Republic of Korea
| | - Sun-Young Moon
- Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea; Department of Psychiatry, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Silvia Kyungjin Lho
- Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea; Department of Psychiatry, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Minah Kim
- Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea; Department of Psychiatry, Seoul National University College of Medicine, Seoul, Republic of Korea.
| | - Jun Soo Kwon
- Department of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Republic of Korea; Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea; Department of Psychiatry, Seoul National University College of Medicine, Seoul, Republic of Korea; Institute of Human Behavioral Medicine, SNU-MRC, Seoul, Republic of Korea
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24
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Schmidt S, Wagner G, Walter M, Stenner MP. A Psychophysical Window onto the Subjective Experience of Compulsion. Brain Sci 2021; 11:brainsci11020182. [PMID: 33540916 PMCID: PMC7913241 DOI: 10.3390/brainsci11020182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 01/19/2021] [Accepted: 01/25/2021] [Indexed: 11/16/2022] Open
Abstract
In this perspective, we follow the idea that an integration of cognitive models with sensorimotor theories of compulsion is required to understand the subjective experience of compulsive action. We argue that cognitive biases in obsessive-compulsive disorder may obscure an altered momentary, pre-reflective experience of sensorimotor control, whose detection thus requires an implicit experimental operationalization. We propose that a classic psychophysical test exists that provides this implicit operationalization, i.e., the intentional binding paradigm. We show how intentional binding can pit two ideas against each other that are fundamental to current sensorimotor theories of compulsion, i.e., the idea of excessive conscious monitoring of action, and the idea that patients with obsessive-compulsive disorder compensate for diminished conscious access to "internal states", including states of the body, by relying on more readily observable proxies. Following these ideas, we develop concrete, testable hypotheses on how intentional binding changes under the assumption of different sensorimotor theories of compulsion. Furthermore, we demonstrate how intentional binding provides a touchstone for predictive coding accounts of obsessive-compulsive disorder. A thorough empirical test of the hypotheses developed in this perspective could help explain the puzzling, disabling phenomenon of compulsion, with implications for the normal subjective experience of human action.
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Affiliation(s)
- Stefan Schmidt
- Department of Psychiatry and Psychotherapy, Jena University Hospital, 07743 Jena, Germany; (S.S.); (G.W.); (M.W.)
| | - Gerd Wagner
- Department of Psychiatry and Psychotherapy, Jena University Hospital, 07743 Jena, Germany; (S.S.); (G.W.); (M.W.)
| | - Martin Walter
- Department of Psychiatry and Psychotherapy, Jena University Hospital, 07743 Jena, Germany; (S.S.); (G.W.); (M.W.)
- Department of Behavioral Neurology, Leibniz Institute for Neurobiology, 39118 Magdeburg, Germany
| | - Max-Philipp Stenner
- Department of Behavioral Neurology, Leibniz Institute for Neurobiology, 39118 Magdeburg, Germany
- Department of Neurology, Otto-von-Guericke University, 39120 Magdeburg, Germany
- Correspondence: ; Tel.: +49-391-626392301; Fax: +49-391-6715233
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25
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Transfer of information across repeated decisions in general and in obsessive-compulsive disorder. Proc Natl Acad Sci U S A 2021; 118:2014271117. [PMID: 33443150 DOI: 10.1073/pnas.2014271117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Real-life decisions are often repeated. Whether considering taking a job in a new city, or doing something mundane like checking if the stove is off, decisions are frequently revisited even if no new information is available. This mode of behavior takes a particularly pathological form in obsessive-compulsive disorder (OCD), which is marked by individuals' redeliberating previously resolved decisions. Surprisingly, little is known about how information is transferred across decision episodes in such circumstances, and whether and how such transfer varies in OCD. In two experiments, data from a repeated decision-making task and computational modeling revealed that both implicit and explicit memories of previous decisions affected subsequent decisions by biasing the rate of evidence integration. Further, we replicated previous work demonstrating impairments in baseline decision-making as a function of self-reported OCD symptoms, and found that information transfer effects specifically due to implicit memory were reduced, offering computational insight into checking behavior.
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Ribeiro SDS, Passos PRC, Carvalho MRD. Evidências Neurobiológicas de Viés Atencional no Transtorno Obsessivo-Compulsivo: Revisão Sistemática. PSICOLOGIA: TEORIA E PESQUISA 2021. [DOI: 10.1590/0102.3772e37212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Resumo O viés atencional corresponde à alocação de recursos de atenção a materiais irrelevantes à tarefa. Supõe-se que pacientes com transtorno obsessivo-compulsivo (TOC) apresentem viés atencional voltado à ameaça. Com o objetivo de descrever os achados neurobiológicos do viés atencional voltado à ameaça no TOC, foi realizada uma busca sistemática por estudos experimentais com investigação neurobiológica nas bases de dados: MEDLINE, Web of Science, Scopus e LILACS. Quatro estudos com grupo controle são descritos nos resultados, todos indicam diferenças estatisticamente significativas na atividade encefálica associada a atenção em pacientes. Os achados neurobiológicos dos estudos incluídos na revisão sugerem a alocação de recursos da atenção a estímulos irrelevantes, independente da valência emocional no TOC.
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Harris L, Cranney J. Event‐based prospective memory and obsessive–compulsive disorder intrusive obsessional thoughts. AUSTRALIAN JOURNAL OF PSYCHOLOGY 2020. [DOI: 10.1111/j.1742-9536.2012.00058.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Lynne Harris
- Australian College of Applied Psychology, Sydney, New South Wales, Australia,
- University of Sydney, Sydney, New South Wales, Australia,
| | - Jacquelyn Cranney
- The University of New South Wales, Sydney, New South Wales, Australia,
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Pavone P, Parano E, Battaglia C, Marino S, Trifiletti RR, Marino SD, Falsaperla R. Severe Psychotic Symptoms in Youth with PANS/PANDAS: Case-Series. J Child Adolesc Psychopharmacol 2020; 30:567-571. [PMID: 32700992 DOI: 10.1089/cap.2020.0050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Objectives: To report a case series of children presenting with episodes of abrupt onset psychotic symptoms presumably linked to pediatric autoimmune neuropsychiatric disorders associated with streptococcal infection (PANDAS) and pediatric acute-onset neuropsychiatric syndrome (PANS). Methods: Children/adolescents were selected among the group of individuals affected by clinical diagnosis of PANDAS/PANS. One group was selected by affected individuals coming from the Center UMDNJ-New Jersey Medical School, New Jersey, USA and the other from the Department of Pediatrics Catania University, Italy. Child health Questionnaire Parent form 50 was given to parents to describe children's quality of life. Results: Among the group of individuals with PANDAS/PANS disorders, eight children/adolescents were selected, six coming from the UMDNJ-New Jersey and two from Catania, University centers showing among the other typical manifestations severe episodes of abrupt onset of psychotic symptoms. Conclusions: Severe psychotic symptoms may be considered one among the other neuropsychiatric clinical manifestations presenting in individuals with PANDAS/PANS syndromes.
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Affiliation(s)
- Piero Pavone
- Section of Pediatrics and Child Neuropsychiatry, Department of Clinical and Experimental Sciences, University of Catania, Catania, Italy
| | - Enrico Parano
- National Council of Research, Institute for Biomedical Research and Innovation (IRIB), Unit of Catania, Catania, Italy
| | - Chiara Battaglia
- Section of Pediatrics and Child Neuropsychiatry, Department of Clinical and Experimental Sciences, University of Catania, Catania, Italy
| | - Silvia Marino
- U.O. of Pediatric and Pediatric Emergency, University-Hospital "Policlinico-Vittorio Emanuele," University of Catania, Catania, Italy
| | | | - Simona D Marino
- U.O. of Pediatric and Pediatric Emergency, University-Hospital "Policlinico-Vittorio Emanuele," University of Catania, Catania, Italy
| | - Raffaele Falsaperla
- U.O. of Pediatric and Pediatric Emergency, University-Hospital "Policlinico-Vittorio Emanuele," University of Catania, Catania, Italy
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Cameron DH, McCabe RE, Rowa K, O’Connor C, McKinnon MC. A pilot study examining the use of Goal Management Training in individuals with obsessive-compulsive disorder. Pilot Feasibility Stud 2020; 6:151. [PMID: 33042571 PMCID: PMC7542336 DOI: 10.1186/s40814-020-00684-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 09/14/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Recent meta-analyses point towards cognitive impairments in obsessive-compulsive disorder (OCD), particularly in such executive function subdomains as planning and organization. Scant attention has focused on cognitive remediation strategies that may reduce cognitive dysfunction, with a possible corresponding decrease in symptoms of OCD. OBJECTIVE The aim of this study was to assess the implementation of a standardized cognitive remediation program, Goal Management Training (GMT), in a pilot sample of individuals with OCD. METHOD Nineteen individuals with a primary DSM-5 diagnosis of OCD were randomized to receive either the 9-week GMT program (active group; n = 10) or to complete a 9-week waiting period (waitlist control; n = 9). Groups were assessed at baseline, post-treatment, and 3-month follow-up. The assessment comprised neuropsychological tasks assessing a variety of cognitive domains, and subjective measures of functioning and of symptom severity. RESULTS The active condition showed significant improvements from baseline to post-treatment on measures of inattention, impulsivity, problem-solving, and organization compared to controls. Moreover, whereas the active group reported a significant improvement in subjective cognition over the course of treatment, no such improvement emerged in the waitlist group over this same period. Neither group showed improvement on indices of depressive, anxiety, or OCD-related symptom severity. DISCUSSION The results of this small pilot investigation indicate that, although promising, this protocol requires several modifications to be best suited for this population. Replication of these findings is awaited, with current results potentially limited by sample characteristics including motivation to seek and complete treatment, and high attrition at 3-month follow-up (n = 6 completers). TRIAL REGISTRATION NCT02502604. (December 7, 2018).
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Affiliation(s)
- Duncan H. Cameron
- Anxiety Treatment and Research Clinic, St. Joseph’s Healthcare Hamilton, Hamilton, ON Canada
| | - Randi E. McCabe
- Anxiety Treatment and Research Clinic, St. Joseph’s Healthcare Hamilton, Hamilton, ON Canada
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON Canada
| | - Karen Rowa
- Anxiety Treatment and Research Clinic, St. Joseph’s Healthcare Hamilton, Hamilton, ON Canada
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON Canada
| | | | - Margaret C. McKinnon
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON Canada
- Homewood Research Institute, Guelph, ON Canada
- Mood Disorders Program, St. Joseph’s Healthcare Hamilton, Hamilton, ON L8P 3R2 Canada
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30
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Cognitive Confidence and Inferential Confusion in Obsessive-Compulsive Disorder: Differences Across Subtypes. Int J Cogn Ther 2020. [DOI: 10.1007/s41811-020-00087-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Kalanthroff E, Marsh R, Hassin RR, Simpson HB. Evidence for trial-by-trial dynamic adjustment of task control in unmedicated adults with OCD. Behav Res Ther 2020; 126:103572. [PMID: 32044473 DOI: 10.1016/j.brat.2020.103572] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 01/08/2020] [Accepted: 01/24/2020] [Indexed: 02/01/2023]
Abstract
According to the conflict monitoring theory, executive control requires two separable processes: conflict-monitoring and conflict-resolution. Deficits in executive control have been observed in adults with obsessive-compulsive disorder (OCD). However, it is not yet clear whether these deficits can be attributed to deficits in conflict-monitoring, in conflict-resolution, or in both. We examined this question by administrating the Simon task to 67 unmedicated adults with OCD and 67 matched controls. The interference effect (incongruent minus congruent) was used to measure conflict-resolution. Trial-by-trial dynamic adaptation (i.e., the Gratton effect), which is indicated by smaller interference effect after conflict-laden trials compared to after non-conflict-laden trials, was used to measure conflict-monitoring. A similar interference effect was found in both the OCD and HC groups with no significant between group differences. Following incongruent trials, the interference effect became smaller for the control group as expected, but was completely eliminated for the OCD group. These data add to the accumulating evidence indicating that conflict-resolution is not globally deficient in unmedicated OCD patients and provide direct evidence that conflict-monitoring is heightened in OCD patients. Our results challenge the assumption of cognitive inflexibility in OCD and highlight the importance of studying unmedicated subjects when investigating executive control.
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Affiliation(s)
- Eyal Kalanthroff
- Department of Psychology, The Hebrew University of Jerusalem, Israel; Department of Psychiatry, Columbia University Medical Center, New York, NY, USA; The New York State Psychiatric Institute, New York, NY, USA.
| | - Rachel Marsh
- Department of Psychiatry, Columbia University Medical Center, New York, NY, USA; The New York State Psychiatric Institute, New York, NY, USA
| | - Ran R Hassin
- Department of Psychology, The Hebrew University of Jerusalem, Israel; The Federmann Center for the Study of Rationality, The Hebrew University of Jerusalem, Israel
| | - Helen Blair Simpson
- Department of Psychiatry, Columbia University Medical Center, New York, NY, USA; The New York State Psychiatric Institute, New York, NY, USA
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32
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A Computational Approach for the Assessment of Executive Functions in Patients with Obsessive-Compulsive Disorder. J Clin Med 2019; 8:jcm8111975. [PMID: 31739514 PMCID: PMC6912564 DOI: 10.3390/jcm8111975] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 11/07/2019] [Accepted: 11/12/2019] [Indexed: 11/16/2022] Open
Abstract
Previous studies on obsessive–compulsive disorder (OCD) showed impairments in executive domains, particularly in cognitive inhibition. In this perspective, the use of virtual reality showed huge potential in the assessment of executive functions; however, unfortunately, to date, no study on the assessment of these patients took advantage of the use of virtual environments. One of the main problems faced within assessment protocols is the use of a limited number of variables and tools when tailoring a personalized program. The main aim of this study was to provide a heuristic decision tree for the future development of tailored assessment protocols. To this purpose, we conducted a study that involved 58 participants (29 OCD patients and 29 controls) to collect both classic neuropsychological data and precise data based on a validated protocol in virtual reality for the assessment of executive functions, namely, the VMET (virtual multiple errands test). In order to provide clear indications for working on executive functions with these patients, we carried out a cross-validation based on three learning algorithms and computationally defined two decision trees. We found that, by using three neuropsychological tests and two VMET scores, it was possible to discriminate OCD patients from controls, opening a novel scenario for future assessment protocols based on virtual reality and computational techniques.
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33
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Wolmarans DW, Stein DJ, Harvey BH. A Psycho-Behavioral Perspective on Modelling Obsessive-Compulsive Disorder (OCD) in Animals: The Role of Context. Curr Med Chem 2019; 25:5662-5689. [PMID: 28545371 DOI: 10.2174/0929867324666170523125256] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 04/18/2017] [Accepted: 05/29/2017] [Indexed: 01/24/2023]
Abstract
Obsessive-compulsive disorder is a heterogeneous and debilitating condition, characterized by intrusive thoughts and compulsive repetition. Animal models of OCD are important tools that have the potential to contribute significantly to our understanding of the condition. Although there is consensus that pre-clinical models are valuable in elucidating the underlying neurobiology in psychiatric disorders, the current paper attempts to prompt ideas on how interpretation of animal behavior can be expanded upon to more effectively converge with the human disorder. Successful outcomes in psychopharmacology involve rational design and synthesis of novel compounds and their testing in well-designed animal models. As part of a special journal issue on OCD, this paper will 1) review the psychobehavioral aspects of OCD that are of importance on how the above ideas can be articulated, 2) briefly elaborate on general issues that are important for the development of animal models of OCD, with a particular focus on the role and importance of context, 3) propose why translational progress may often be less than ideal, 4) highlight some of the significant contributions afforded by animal models to advance understanding, and 5) conclude by identifying novel behavioral constructs for future investigations that may contribute to the face, predictive and construct validity of OCD animal models. We base these targets on an integrative approach to face and construct validity, and note that the issue of treatment-resistance in the clinical context should receive attention in current animal models of OCD.
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Affiliation(s)
- De Wet Wolmarans
- Division of Pharmacology, Center of Excellence for Pharmaceutical Sciences, Faculty of Health Sciences, North West-University, Potchefstroom, South Africa
| | - Dan J Stein
- MRC Unit on Risk and Resilience in Mental Disorders, University of Cape Town, Cape Town, South Africa.,Department of Psychiatry and Mental Health, MRC Unit on Risk and Resilience in Mental Disorders, University of Cape Town, Cape Town, South Africa
| | - Brian H Harvey
- Division of Pharmacology, Center of Excellence for Pharmaceutical Sciences, Faculty of Health Sciences, North West-University, Potchefstroom, South Africa.,MRC Unit on Risk and Resilience in Mental Disorders, University of Cape Town, Cape Town, South Africa
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34
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Burton CL, Wright L, Shan J, Xiao B, Dupuis A, Goodale T, Shaheen SM, Corfield EC, Arnold PD, Schachar RJ, Crosbie J. SWAN scale for ADHD trait-based genetic research: a validity and polygenic risk study. J Child Psychol Psychiatry 2019; 60:988-997. [PMID: 30908652 DOI: 10.1111/jcpp.13032] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/13/2018] [Indexed: 12/31/2022]
Abstract
BACKGROUND Population-based samples with valid, quantitative and genetically informative trait measures of psychopathology could be a powerful complement to case/control genetic designs. We report the convergent and predictive validity of the parent- and self-report versions of the Strengths and Weaknesses of ADHD Symptoms and Normal Behavior Rating Scale (SWAN). We tested if SWAN scores were associated with ADHD diagnosis, ADHD polygenic risk, as well as traits and polygenic risk for disorders that co-occur with ADHD: anxiety and obsessive-compulsive disorder (OCD). METHODS We collected parent- and self-report SWAN scores in a sample of 15,560 children and adolescents (6-17 years) recruited at a science museum (Spit for Science sample). We established age and sex norms for the SWAN. Sensitivity-specificity analyses determined SWAN cut-points that discriminated those with and without a reported ADHD diagnosis. These cut-points were validated in a clinic sample (266 ADHD cases; 36 controls). Convergent validity was established using the Conners' parent- and self-report scales. Using Spit for Science participants with genome-wide data (n = 5,154), we tested if low, medium and high SWAN scores were associated with polygenic risk for ADHD, OCD and anxiety disorders. RESULTS Parent- and self-report SWAN scores showed high convergent validity with Conners' scales and distinguished ADHD participants with high sensitivity and specificity in the Spit for Science sample. In a clinic sample, the Spit for Science cut-points discriminated ADHD cases from controls with a sensitivity of 84% and specificity of 92%. High SWAN scores and scores above the Spit for Science cut-points were significantly associated with polygenic risk for ADHD. SWAN scores were not associated with polygenic risk for OCD or anxiety disorders. CONCLUSIONS Our study supports the validity of the parent- and self-report SWAN scales and their potential in ADHD population-based genetic research.
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Affiliation(s)
- Christie L Burton
- Neurosciences and Mental Health Program, Hospital for Sick Children, Toronto, ON, Canada
| | - Leah Wright
- Neurosciences and Mental Health Program, Hospital for Sick Children, Toronto, ON, Canada
| | - Janet Shan
- Neurosciences and Mental Health Program, Hospital for Sick Children, Toronto, ON, Canada
| | - Bowei Xiao
- Genetics and Genome Biology Program, Hospital for Sick Children, Toronto, ON, Canada
| | - Annie Dupuis
- Clinical Research Services, Hospital for Sick Children, Toronto, ON, Canada.,Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | - Tara Goodale
- Neurosciences and Mental Health Program, Hospital for Sick Children, Toronto, ON, Canada
| | - S-M Shaheen
- Mathison Centre for Mental Health Research and Education, University of Calgary, Calgary, AB, Canada.,Departments of Psychiatry & Medical Genetics, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Elizabeth C Corfield
- Neurosciences and Mental Health Program, Hospital for Sick Children, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Paul D Arnold
- Genetics and Genome Biology Program, Hospital for Sick Children, Toronto, ON, Canada.,Mathison Centre for Mental Health Research and Education, University of Calgary, Calgary, AB, Canada.,Departments of Psychiatry & Medical Genetics, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Russell J Schachar
- Neurosciences and Mental Health Program, Hospital for Sick Children, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada.,Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Jennifer Crosbie
- Neurosciences and Mental Health Program, Hospital for Sick Children, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
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35
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Abstract
Advances in the study of brain networks can be applied to our understanding of anxiety disorders (eg, generalized anxiety, obsessive-compulsive, and posttraumatic stress disorders) to enable us to create targeted treatments. These disorders have in common an inability to control thoughts, emotions, and behaviors related to a perceived threat. Here we review animal and human imaging studies that have revealed separate brain networks related to various negative emotions. Research has supported the idea that brain networks of attention serve to control emotion networks as well as the thoughts and behaviors related to them. We discuss how attention networks can modulate both positive and negative affect. Disorders arise from both abnormal activation of negative affect and a lack of attentional control. Training attention has been one way to foster improved attentional control. We review attention training studies as well as efforts to generally improve attention networks through stimulation in self-regulation.
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36
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Ouimet AJ, Ashbaugh AR, Radomsky AS. Hoping for more: How cognitive science has and hasn't been helpful to the OCD clinician. Clin Psychol Rev 2019; 69:14-29. [DOI: 10.1016/j.cpr.2018.04.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 04/09/2018] [Accepted: 04/10/2018] [Indexed: 12/19/2022]
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Jansson-Fröjmark M, Harvey AG, Flink IK. Psychometric properties of the Insomnia Catastrophizing Scale (ICS) in a large community sample. Cogn Behav Ther 2019; 49:120-136. [PMID: 30896297 DOI: 10.1080/16506073.2019.1588362] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The purpose was to investigate the psychometric properties of the Insomnia Catastrophizing Scale (ICS) including factorial validity and internal consistency as well as discriminative and convergent validity. Associations with sleep parameters and daytime impairment are also examined. Drawn from a randomly selected sample of the general population, 1615 participants completed a survey on insomnia-related nighttime and daytime symptoms, health outcomes and psychological processes, including the ICS. A one-factor solution was supported for both the nighttime catastrophizing (11 items) and daytime catastrophizing (6 items) subscales. Both subscales displayed high internal consistencies (α > 0.90) and accounted for 59.1-70.1% of the variance. The insomnia disorder group had significantly higher scores than participants without insomnia on the two subscales and on the individual items. Cutoffs were established for both subscales with acceptable sensitivity and specificity. Both subscales displayed adequate convergent validity with measures indexing worry, cognitive pre-sleep arousal and anxiety. The two subscales were also significantly associated with nighttime and daytime insomnia symptoms. The ICS is a reliable and valid scale for the assessment of insomnia-related catastrophizing. Future research is needed to examine the test-retest reliability and treatment sensitivity of the ICS.
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Affiliation(s)
- Markus Jansson-Fröjmark
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden
| | - Allison G Harvey
- Department of Psychology, University of California, Berkeley, CA, USA
| | - Ida K Flink
- Center for Health and Medical Psychology (CHAMP), School of Law, Psychology, and Social Work, Örebro University, Örebro, Sweden
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38
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Tan B, Liu Q, Wan C, Jin Z, Yang Y, Li L. Altered Functional Connectivity of Alpha Rhythm in Obsessive-Compulsive Disorder During Rest. Clin EEG Neurosci 2019; 50:88-99. [PMID: 30280595 DOI: 10.1177/1550059418804378] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Obsessive-compulsive disorder (OCD) is a common inheritable psychiatric disorder characteristic of repetitive thinking, imagination (obsession), and stereotyped behaviors (compulsive). To explore whether there is an alteration of brain functional connectivity (BFC) in patients with OCD during rest, electroencephalogram (EEG) data of healthy controls (HCs) and patients with OCD were collected during rest in both eyes-closed and eyes-open states. Synchronization likelihood and graph theory were applied to construct and analyze brain functional networks of patients with OCD and HCs. Patients with OCD showed abnormal graph-theoretic parameters and impaired small world features in the alpha and beta bands. In addition, the topological analysis consistently showed that the long-range BFC of alpha rhythm was significantly reduced in the bilateral posterior areas in patients with OCD in comparison with HCs, while the BFC in the beta rhythm was significantly increased only in the eyes-open state. The findings suggest that the BFC of patients with OCD show abnormal small-world features and altered topological structure during rest, mainly in alpha and beta bands, which may provide a new insight for the diagnosis and treatment of OCD.
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Affiliation(s)
- Bo Tan
- Key Laboratory for NeuroInformation of Ministry of Education, High-Field Magnetic Resonance Brain Imaging Key Laboratory of Sichuan Province, Center for Information in BioMedicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Qingxiao Liu
- Hospital of Chengdu University of TCM, Chengdu, China
| | - Chaoyang Wan
- Key Laboratory for NeuroInformation of Ministry of Education, High-Field Magnetic Resonance Brain Imaging Key Laboratory of Sichuan Province, Center for Information in BioMedicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Zhenlan Jin
- Key Laboratory for NeuroInformation of Ministry of Education, High-Field Magnetic Resonance Brain Imaging Key Laboratory of Sichuan Province, Center for Information in BioMedicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Yanchun Yang
- Mental Health Center, West China Hospital of Sichuan University, Chengdu, China
| | - Ling Li
- Key Laboratory for NeuroInformation of Ministry of Education, High-Field Magnetic Resonance Brain Imaging Key Laboratory of Sichuan Province, Center for Information in BioMedicine, University of Electronic Science and Technology of China, Chengdu, China
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39
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Qin J, Sui J, Ni H, Wang S, Zhang F, Zhou Z, Tian L. The Shared and Distinct White Matter Networks Between Drug-Naive Patients With Obsessive-Compulsive Disorder and Schizophrenia. Front Neurosci 2019; 13:96. [PMID: 30846924 PMCID: PMC6393388 DOI: 10.3389/fnins.2019.00096] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Accepted: 01/28/2019] [Indexed: 12/17/2022] Open
Abstract
Background: Obsessive-compulsive disorder (OCD) and schizophrenia (SZ) as two severe mental disorders share many clinical symptoms, and have a tight association on the psychopathological level. However, the neurobiological substrates between these two diseases remain unclear. To the best of our knowledge, no study has directly compared OCD with SZ from the perspective of white matter (WM) networks. Methods: Graph theory and network-based statistic methods were applied to diffusion MRI to investigate and compare the WM topological characteristics among 29 drug-naive OCDs, 29 drug-naive SZs, and 65 demographically-matched healthy controls (NC). Results: Compared to NCs, OCDs showed the alterations of nodal efficiency and strength in orbitofrontal (OFG) and middle frontal gyrus (MFG), while SZs exhibited widely-distributed abnormalities involving the OFG, MFG, fusiform gyrus, heschl gyrus, calcarine, lingual gyrus, putamen, and thalamus, and most of these regions also showed a significant difference from OCDs. Moreover, SZs had significantly fewer connections in striatum and visual/auditory cortices than OCDs. The right putamen consistently showed significant differences between both disorders on nodal characteristics and structural connectivity. Conclusions: SZ and OCD present different level of anatomical impairment and some distinct topological patterns, and the former has more serious and more widespread disruptions. The significant differences between both disorders are observed in many regions involving the frontal, temporal, occipital, and subcortical regions. Particularly, putamen may serve as a potential imaging marker to distinguish these two disorders and may be the key difference in their pathological changes.
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Affiliation(s)
- Jiaolong Qin
- The Key Laboratory of Intelligent Perception and Systems for High-Dimensional Information of Ministry of Education, School of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing, China
- National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing, China
- Brainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Jing Sui
- National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing, China
- Brainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing, China
- Chinese Academy of Sciences Center for Excellence in Brain Science, Institute of Automation, Beijing, China
| | - Huangjing Ni
- Smart Health Big Data Analysis and Location Services Engineering Lab of Jiangsu Province, Nanjing University of Posts and Telecommunications, Nanjing, China
| | - Shuai Wang
- The Affiliated Wuxi Mental Health Center of Nanjing Medical University, Wuxi, China
- Wuxi Tongren International Rehabilitation Hospital, Wuxi, China
| | - Fuquan Zhang
- The Affiliated Wuxi Mental Health Center of Nanjing Medical University, Wuxi, China
- Wuxi Tongren International Rehabilitation Hospital, Wuxi, China
| | - Zhenhe Zhou
- The Affiliated Wuxi Mental Health Center of Nanjing Medical University, Wuxi, China
- Wuxi Tongren International Rehabilitation Hospital, Wuxi, China
| | - Lin Tian
- The Affiliated Wuxi Mental Health Center of Nanjing Medical University, Wuxi, China
- Wuxi Tongren International Rehabilitation Hospital, Wuxi, China
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40
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Xu C, Cao H, Liu D. Integrative analysis of shared genetic pathogenesis by obsessive‑compulsive and eating disorders. Mol Med Rep 2018; 19:1761-1766. [PMID: 30569105 DOI: 10.3892/mmr.2018.9772] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 10/18/2018] [Indexed: 11/06/2022] Open
Abstract
A number of common pathological features have been observed in obsessive‑compulsive disorder (OCD) and eating disorders (EDs). The present study examined the association between OCD and EDs at the genetic level in order to gain an improved understanding of the shared genetic basis of the diseases and identify novel potential risk genes for the two diseases. An integrated analysis using large‑scale disease‑gene association data and gene expression data was conducted. Disease‑gene association data were acquired from the Pathway Studio Mammalian database. Gene expression data were acquired from samples of 133 subjects, including 15 ED cases, 16 OCD cases and 102 normal controls. Genes associated with OCD and ED presented significant overlap (21 genes, P=6.70x10‑34), serving roles within multiple common genetic pathways (top 10 pathway enrichment P<4.30x10‑7) that were implicated in the two diseases. A genetic network of 17 genes was constructed, through which OCD and ED were observed to influence each other. Expression analysis revealed four novel common significant genes for OCD and ED (oxytocin receptor, glutamate decarboxylase 2, neuropeptide Y and glutamate ionotropic receptor kainate type subunit 3). These genes demonstrated a strong functional association with the two diseases. The results of the present study supported the presence of complex genetic associations between OCD and ED. Genes associated with one disease are worthy of further investigation as potential risk factors for the other. The findings of the present study may provide novel insights into the understanding of the pathogenesis of OCD and ED.
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Affiliation(s)
- Cheng Xu
- Department of Magnetic Resonance Imaging, Shanxi Province People's Hospital, Taiyuan, Shanxi 030001, P.R. China
| | - Hongbao Cao
- Department of Genomics Research, R&D Solutions, Elsevier, Inc., Rockville, MD 20852, USA
| | - Dongbai Liu
- Department of Neurology, The First People's Hospital Affiliated to Soochow University, Suzhou, Jiangsu 215006, P.R. China
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41
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De Putter LMS, Koster EHW. Can selective attention and inhibition (interactively) predict future obsessive compulsive symptoms? A prospective study. J Behav Ther Exp Psychiatry 2018; 61:150-157. [PMID: 30081256 DOI: 10.1016/j.jbtep.2018.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2017] [Revised: 06/02/2018] [Accepted: 07/27/2018] [Indexed: 11/15/2022]
Abstract
BACKGROUND AND OBJECTIVES The current study set out to investigate whether obsessive beliefs, selective attention, inhibition, and the interaction between selective attention and inhibition can prospectively predict contamination obsessive compulsive (OC) symptoms. METHODS Obsessive beliefs, inhibition, and selective attention were assessed in a student sample (n = 89) during a baseline session in the beginning of the first semester. Their predictive value was examined by assessing symptoms after an OC symptom induction in the lab and by assessing OC symptoms during a period of increased stress (the examination period) 68-80 days after baseline. RESULTS Results showed that obsessive beliefs did not consistently predict OC symptoms and there was no predictive effect of attentional bias, attentional bias variability, and inhibition in isolation. However, attentional bias variability and inhibition in the context of contamination-related stimuli interacted, in which only the combination of poor inhibition and large attentional bias variability predicted contamination OC symptoms during the examination period. LIMITATIONS Future research should investigate whether similar results are found in clinical populations, as the current sample consisted of a convenience sample of undergraduate students. CONCLUSION These results support the notion that information processing biases interact in predicting contamination OC symptoms.
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Affiliation(s)
- Laura M S De Putter
- Psychopathology and Affective Neuroscience Lab, Department of Experimental Clinical and Health Psychology, Ghent University, Henri Dunantlaan 2, 9000, Ghent, Belgium.
| | - Ernst H W Koster
- Psychopathology and Affective Neuroscience Lab, Department of Experimental Clinical and Health Psychology, Ghent University, Henri Dunantlaan 2, 9000, Ghent, Belgium.
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Morein-Zamir S, Shahper S, Fineberg NA, Eisele V, Eagle DM, Urcelay G, Robbins TW. Free operant observing in humans: a translational approach to compulsive certainty seeking. Q J Exp Psychol (Hove) 2018; 71:2052-2069. [PMID: 29359639 PMCID: PMC6159779 DOI: 10.1177/1747021817737727] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Excessive checking is reported in non-clinical populations and is a pervasive symptom in obsessive compulsive disorder (OCD). We implemented a free-operant task in humans, previously used in rats, wherein participants can "check" to reduce uncertainty. Participants can press an observing key to ascertain which of two main keys will, if pressed, currently lead to rewards. Over a series of experiments, we found that punishment robustly increased observing in non-clinical participants and that observing persisted long after punishment was removed. Moreover, participants appeared insensitive to the initial costs of checking, and a threefold increase in the effort required to observe served to deter participants only to a limited degree. We also assessed observing in OCD patients with no known comorbidities. The patients observed more than control participants and were abnormally insensitive to the introduction of punishment. These findings support the translational value of the task, with similar behaviours in humans and rodents. This paradigm may serve as a unifying platform, promoting interaction between different approaches to analyse adaptive and maladaptive certainty seeking behaviours. Specifically, we demonstrate how seemingly disparate theoretical and empirical approaches can be reconciled synergistically to promote a combined behavioural and cognitive account of certainty seeking.
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Affiliation(s)
- Sharon Morein-Zamir
- Psychology Department, Anglia Ruskin
University, Cambridge, UK,Behavioural and Clinical Neuroscience
Institute, University of Cambridge, Cambridge, UK,Department of Psychology, University of
Cambridge, Cambridge, UK,Sharon Morein-Zamir, Department of Psychology,
Anglia Ruskin University, East Road, Cambridge CB1 1PT, UK.
| | - Sonia Shahper
- Highly Specialized Obsessive Compulsive and
Related Disorders Service, Hertfordshire Partnership University NHS Foundation Trust, Welwyn
Garden City, UK
| | - Naomi A Fineberg
- Hertfordshire Partnership University NHS
Foundation Trust, Welwyn Garden City, UK,Postgraduate Medical School, University of
Hertfordshire, Hatfield, UK
| | - Verena Eisele
- Behavioural and Clinical Neuroscience
Institute, University of Cambridge, Cambridge, UK,Department of Psychology, University of
Cambridge, Cambridge, UK
| | - Dawn M Eagle
- Behavioural and Clinical Neuroscience
Institute, University of Cambridge, Cambridge, UK,Department of Psychology, University of
Cambridge, Cambridge, UK
| | - Gonzalo Urcelay
- Behavioural and Clinical Neuroscience
Institute, University of Cambridge, Cambridge, UK,Department of Psychology, University of
Cambridge, Cambridge, UK,Department of Neuroscience, Psychology and
Behaviour, University of Leicester, Leicester, UK
| | - Trevor W Robbins
- Behavioural and Clinical Neuroscience
Institute, University of Cambridge, Cambridge, UK,Department of Psychology, University of
Cambridge, Cambridge, UK
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43
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Immune system and obsessive-compulsive disorder. Psychoneuroendocrinology 2018; 93:39-44. [PMID: 29689421 DOI: 10.1016/j.psyneuen.2018.04.013] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 04/11/2018] [Accepted: 04/12/2018] [Indexed: 12/22/2022]
Abstract
BACKGROUND Recently, much attention has been devoted to the possible alterations of the immune system in obsessive-compulsive disorder (OCD). Therefore, the aim of this paper was to review the current literature on the relationships between OCD and immune system. METHODS A PubMed and Google Scholar search was performed with specific keywords. RESULTS In the childhood, much emphasis has been given to the relationship between group A Streptococcus (GAS) infection and the development of a group of clinical syndromes characterized by neuropsychiatric symptoms known as "pediatric autoimmune neuropsychiatric disorders associated with streptococcus" (PANDAS). However, more recently, PANDAS has been reconsidered and evolved towards pediatric acute-onset neuropsychiatric syndrome (PANS) and/or Childhood Acute Neuropsychiatric Syndrome (CANS) all characterized by the presence of typical of OCD symptoms and tics. In adult OCD patients, different immunological parameters have been described to differ from those of healthy control subjects, although a few numbers of studies were carred out and most of them performed in small samples. CONCLUSIONS Although the exact relationships between OCD and immune processes are still unclear, available literature supports their role in the pathophysiology of OCD, while providing a fascinating hint for possible immunotherapeutic treatments in OCD.
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44
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Dysfunction by Disclosure? Stereotype Threat as a Source of Secondary Neurocognitive Malperformance in Obsessive-Compulsive Disorder. J Int Neuropsychol Soc 2018; 24:584-592. [PMID: 29553002 DOI: 10.1017/s1355617718000097] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
OBJECTIVES There is mixed evidence regarding whether patients with obsessive-compulsive disorder (OCD) display substantial neurocognitive deficits. Several studies implicate poor motivation, comorbid disorders, or distraction due to obsessive thoughts as potential causes of secondary malperformance. The present study examined the impact of stereotype threat (i.e., confrontation with a negative stereotype may impair performance) on neuropsychological functioning in individuals with OCD. We hypothesized that a stereotype threat cue emphasizing neurocognitive deficits in OCD (as is often conveyed in disclosure and consent documents that inform patients about the purpose of a study) would compromise patients' test performance relative to a control group who did not receive such cue. METHODS Fifty participants with either a verified or a likely diagnosis of OCD were recruited online and randomly assigned to either an experimental condition aimed to elicit stereotype threat or a control condition. Both groups underwent (objective) memory and attention (Go/NoGo task) assessments and completed questionnaires capturing psychopathology, cognitive complaints, and self-stigma. RESULTS As hypothesized, patients in the stereotype threat condition performed worse on the Go/NoGo task. Groups did not differ on any other measures. CONCLUSIONS Stereotype threat negatively impacted neuropsychological performance on an attention task. The threat cue was perhaps too weak or the stereotype threat was already internalized by the patients and "saturated" at baseline so that no effect emerged on the other measures. Implications for clinical trials are discussed. (JINS, 2018, 24, 584-592).
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Botta F, Vibert N, Harika-Germaneau G, Frasca M, Rigalleau F, Fakra E, Ros C, Rouet JF, Ferreri F, Jaafari N. Visual search for verbal material in patients with obsessive-compulsive disorder. Psychiatry Res 2018; 264:244-253. [PMID: 29655967 DOI: 10.1016/j.psychres.2018.03.054] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 02/26/2018] [Accepted: 03/22/2018] [Indexed: 11/28/2022]
Abstract
This study aimed at investigating attentional mechanisms in obsessive-compulsive disorder (OCD) by analysing how visual search processes are modulated by normal and obsession-related distracting information in OCD patients and whether these modulations differ from those observed in healthy people. OCD patients were asked to search for a target word within distractor words that could be orthographically similar to the target, semantically related to the target, semantically related to the most typical obsessions/compulsions observed in OCD patients, or unrelated to the target. Patients' performance and eye movements were compared with those of individually matched healthy controls. In controls, the distractors that were visually similar to the target mostly captured attention. Conversely, patients' attention was captured equally by all kinds of distractor words, whatever their similarity with the target, except obsession-related distractors that attracted patients' attention less than the other distractors. OCD had a major impact on the mostly subliminal mechanisms that guide attention within the search display, but had much less impact on the distractor rejection processes that take place when a distractor is fixated. Hence, visual search in OCD is characterized by abnormal subliminal, but not supraliminal, processing of obsession-related information and by an impaired ability to inhibit task-irrelevant inputs.
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Affiliation(s)
- Fabiano Botta
- Unité de Recherche Clinique Pierre Deniker du Centre Hospitalier Henri Laborit, Poitiers, France.
| | - Nicolas Vibert
- Centre de Recherches sur la Cognition et l'Apprentissage, CNRS, Université de Poitiers, Université de Tours, Poitiers, France
| | - Ghina Harika-Germaneau
- Unité de Recherche Clinique Pierre Deniker du Centre Hospitalier Henri Laborit, Poitiers, France
| | - Mickaël Frasca
- Centre de Recherches sur la Cognition et l'Apprentissage, CNRS, Université de Poitiers, Université de Tours, Poitiers, France
| | - François Rigalleau
- Centre de Recherches sur la Cognition et l'Apprentissage, CNRS, Université de Poitiers, Université de Tours, Poitiers, France
| | - Eric Fakra
- Service Hospitalo-Universitaire de Psychiatrie, Secteur Saint-Etienne, Hôpital Nord, Saint-Etienne, France
| | - Christine Ros
- Centre de Recherches sur la Cognition et l'Apprentissage, CNRS, Université de Poitiers, Université de Tours, Poitiers, France
| | - Jean-François Rouet
- Centre de Recherches sur la Cognition et l'Apprentissage, CNRS, Université de Poitiers, Université de Tours, Poitiers, France
| | - Florian Ferreri
- Département de Psychiatrie et de Psychologie Médicale, Hôpital Saint-Antoine, Université Pierre et Marie Curie Paris 6, Assistance Publique - Hôpitaux de Paris, Paris, France
| | - Nematollah Jaafari
- Unité de Recherche Clinique Pierre Deniker du Centre Hospitalier Henri Laborit, Poitiers, France; Laboratoire de Neurosciences Expérimentales et Cliniques, INSERM U 1084, Université de Poitiers, INSERM CIC-P 1402; CHU de Poitiers, Poitiers, France
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Gallo FT, Katche C, Morici JF, Medina JH, Weisstaub NV. Immediate Early Genes, Memory and Psychiatric Disorders: Focus on c-Fos, Egr1 and Arc. Front Behav Neurosci 2018; 12:79. [PMID: 29755331 PMCID: PMC5932360 DOI: 10.3389/fnbeh.2018.00079] [Citation(s) in RCA: 214] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 04/10/2018] [Indexed: 01/08/2023] Open
Abstract
Many psychiatric disorders, despite their specific characteristics, share deficits in the cognitive domain including executive functions, emotional control and memory. However, memory deficits have been in many cases undervalued compared with other characteristics. The expression of Immediate Early Genes (IEGs) such as, c-fos, Egr1 and arc are selectively and promptly upregulated in learning and memory among neuronal subpopulations in regions associated with these processes. Changes in expression in these genes have been observed in recognition, working and fear related memories across the brain. Despite the enormous amount of data supporting changes in their expression during learning and memory and the importance of those cognitive processes in psychiatric conditions, there are very few studies analyzing the direct implication of the IEGs in mental illnesses. In this review, we discuss the role of some of the most relevant IEGs in relation with memory processes affected in psychiatric conditions.
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Affiliation(s)
- Francisco T Gallo
- Instituto de Fisiología y Biofísica Bernardo Houssay, Departamento de Fisiología, Facultad de Medicina, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
| | - Cynthia Katche
- Instituto de Biología Celular y Neurociencias (IBCN) Dr. Eduardo de Robertis, Facultad de Medicina, CONICET, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
| | - Juan F Morici
- Instituto de Fisiología y Biofísica Bernardo Houssay, Departamento de Fisiología, Facultad de Medicina, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
| | - Jorge H Medina
- Instituto de Biología Celular y Neurociencias (IBCN) Dr. Eduardo de Robertis, Facultad de Medicina, CONICET, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina.,Departamento de Fisiología, Facultad de Medicina, Universidad de Buenos (UBA), Buenos Aires, Argentina
| | - Noelia V Weisstaub
- Instituto de Fisiología y Biofísica Bernardo Houssay, Departamento de Fisiología, Facultad de Medicina, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
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47
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Ansari Z, Shahabi R. Cognitive Profile of Individuals With Obsessive-Compulsive Tendencies. AMERICAN JOURNAL OF PSYCHOLOGY 2018. [DOI: 10.5406/amerjpsyc.131.1.0081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Abstract
The aim of this study is to compare working memory capacity (WMC), short-term memory (STM), and attention mechanisms of executive function (including inhibition, shifting, and updating) between people with obsessive-compulsive tendencies (OCT) and controls without OCT. For this purpose, 164 undergraduate students (90 women and 74 men) were selected using the stratified random method, and they individually responded to the Maudsley Obsessional-Compulsive Inventory to measure OCT and to executive function tests including Forward Digit Span, Backward Digit Span, Stroop, Set Shifting, and Keep Track tasks. These tasks assessed STM, WMC, and inhibition of prepotent responses, mental set shifting, and information updating and monitoring, respectively. In this study, the cutoff point of the Maudsley Obsessional-Compulsive Inventory was considered to be 11. With regard to this cutoff point, 44 people in the group had OCT and 120 did not. The obtained results from the Pearson correlation coefficient and analysis of variance showed that students with OCT had significantly limited STM and WMC compared with those in the control group. Furthermore, their executive function abilities including shifting, updating, and inhibition were significantly weaker than those in the control group.
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Soref A, Liberman N, Abramovitch A, Dar R. Explicit instructions facilitate performance of OCD participants but impair performance of non-OCD participants on a serial reaction time task. J Anxiety Disord 2018; 55:56-62. [PMID: 29500079 DOI: 10.1016/j.janxdis.2018.02.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 02/09/2018] [Accepted: 02/21/2018] [Indexed: 11/29/2022]
Abstract
Previous studies have shown that individuals diagnosed with OCD tend to rely on explicit processing while performing implicit learning tasks. We sought to investigate whether individuals with OCD are capable of implicit learning, but would demonstrate improved performance when explicit processing strategies are enhanced. Twenty-four participants with OCD and 24 non-psychiatric control (NPC) participants performed an implicit learning task in which they responded to a single target stimulus that successively appears at one of four locations according to an underlying sequence. We manipulated the learning strategy by informing half of the participants that the target stimulus location was determined by an underlying sequence, which they should identify (intentional learning). The other half of the participants was not informed of the existence of the underlying sequence, and was expected to learn the sequence implicitly (standard learning). We predicted that OCD participants will exhibit inferior performance compared to NPC participants in the standard learning condition, and that intentional learning instructions would impair the performance of NPC participants, but enhance the performance of OCD participants. The results supported these predictions and suggest that individuals with OCD prefer controlled to automatic processing. We discuss the implications of this conclusion to our understanding of OCD.
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Affiliation(s)
- Assaf Soref
- School of Psychological Sciences, Tel-Aviv University, Israel.
| | - Nira Liberman
- School of Psychological Sciences, Tel-Aviv University, Israel
| | | | - Reuven Dar
- School of Psychological Sciences, Tel-Aviv University, Israel
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Schaefer JD, Scult MA, Caspi A, Arseneault L, Belsky DW, Hariri AR, Harrington H, Houts R, Ramrakha S, Poulton R, Moffitt TE. Is low cognitive functioning a predictor or consequence of major depressive disorder? A test in two longitudinal birth cohorts. Dev Psychopathol 2017:1-15. [PMID: 29144220 PMCID: PMC5842891 DOI: 10.1017/s095457941700164x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Cognitive impairment has been identified as an important aspect of major depressive disorder (MDD). We tested two theories regarding the association between MDD and cognitive functioning using data from longitudinal cohort studies. One theory, the cognitive reserve hypothesis, suggests that higher cognitive ability in childhood decreases risk of later MDD. The second, the scarring hypothesis, instead suggests that MDD leads to persistent cognitive deficits following disorder onset. We tested both theories in the Dunedin Study, a population-representative cohort followed from birth to midlife and assessed repeatedly for both cognitive functioning and psychopathology. We also used data from the Environmental Risk Longitudinal Twin Study to test whether childhood cognitive functioning predicts future MDD risk independent of family-wide and genetic risk using a discordant twin design. Contrary to both hypotheses, we found that childhood cognitive functioning did not predict future risk of MDD, nor did study members with a past history of MDD show evidence of greater cognitive decline unless MDD was accompanied by other comorbid psychiatric conditions. Our results thus suggest that low cognitive functioning is related to comorbidity, but is neither an antecedent nor an enduring consequence of MDD. Future research may benefit from considering cognitive deficits that occur during depressive episodes from a transdiagnostic perspective.
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50
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Lei H, Cui Y, Fan J, Zhang X, Zhong M, Yi J, Cai L, Yao D, Zhu X. Abnormal small-world brain functional networks in obsessive-compulsive disorder patients with poor insight. J Affect Disord 2017; 219:119-125. [PMID: 28549329 DOI: 10.1016/j.jad.2017.05.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 05/10/2017] [Accepted: 05/19/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND There are limited data on neurobiological correlates of poor insight in obsessive-compulsive disorder (OCD). This study explored whether specific changes occur in small-world network (SWN) properties in the brain functional network of OCD patients with poor insight. METHOD Resting-state electroencephalograms (EEGs) were recorded for 12 medication-free OCD patients with poor insight, 50 medication-free OCD patients with good insight, and 36 healthy controls. RESULTS Both of the OCD groups exhibited topological alterations in the brain functional network characterized by abnormal small-world parameters at the beta band. However, the alterations at the theta band only existed in the OCD patients with poor insight. LIMITATIONS A relatively small sample size. Subjects were naïve to medications and those with Axis I comorbidity were excluded, perhaps limiting generalizability. CONCLUSIONS Disrupted functional integrity at the beta bands of the brain functional network may be related to OCD, while disrupted functional integrity at the theta band may be associated with poor insight in OCD patients, thus this study might provide novel insight into our understanding of the pathophysiology of OCD.
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Affiliation(s)
- Hui Lei
- Medical Psychological Center, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; College of Education, Hunan Agricultural University, Changsha, Hunan, China
| | - Yan Cui
- Key Laboratory for NeuroInformation of Ministry of Education, Center for Information in BioMedicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Jie Fan
- Medical Psychological Center, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Medical Psychological Institute of Center South University, Changsha, Hunan, China
| | - Xiaocui Zhang
- Medical Psychological Center, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Medical Psychological Institute of Center South University, Changsha, Hunan, China
| | - Mingtian Zhong
- Center for Studies of Psychological Application, South China Normal University, Guangzhou, Guangdong, China
| | - Jinyao Yi
- Medical Psychological Center, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Medical Psychological Institute of Center South University, Changsha, Hunan, China
| | - Lin Cai
- School of Sociology and Psychology, Southwest University for Nationalities, Chengdu, Sichuan, China
| | - Dezhong Yao
- Key Laboratory for NeuroInformation of Ministry of Education, Center for Information in BioMedicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China.
| | - Xiongzhao Zhu
- Medical Psychological Center, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Medical Psychological Institute of Center South University, Changsha, Hunan, China.
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