An fMRI study of “theory of mind” in at-risk states of psychosis: Comparison with manifest schizophrenia and healthy controls

NeuroImage ◽  
2011 ◽  
Vol 55 (1) ◽  
pp. 329-337 ◽  
Author(s):  
Martin Brüne ◽  
Seza Özgürdal ◽  
Nina Ansorge ◽  
Heinrich Graf von Reventlow ◽  
Sören Peters ◽  
...  
Keyword(s):  
At Risk ◽  
Theory Of Mind ◽  
Healthy Controls ◽  
Fmri Study

Theory of Mind impairments in early course schizophrenia: An fMRI study

2021 ◽  
Vol 136 ◽  
pp. 236-243
Author(s):  
Rachal R. Hegde ◽  
Synthia Guimond ◽  
Deepthi Bannai ◽  
Victor Zeng ◽  
Shezal Padani ◽  
...  
Keyword(s):  
Theory Of Mind ◽  
Early Course ◽  
Fmri Study

scholarly journals FRI0226 OPTICAL COHERENCE TOMOGRAPHY OF THE SKIN DETECTS SCLERODERMA CHANGES IN CLINICALLY UNAFFECTED SKIN: AN OPPORTUNITY FOR EARLY DETECTION OF SYSTEMIC SCLEROSIS

2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 696.2-696
Author(s):  
G. Abignano ◽  
D. Temiz Karadağ ◽  
O. Gundogdu ◽  
G. Lettieri ◽  
M. C. Padula ◽  
...  
Keyword(s):  
At Risk ◽  
Clinical Trials ◽  
Optical Coherence Tomography ◽  
Systemic Sclerosis ◽  
Early Detection ◽  
Classification Criteria ◽  
Healthy Controls ◽  
Optical Coherence ◽  
Risk Patients ◽  
Unaffected Skin

Background:The Very Early Diagnosis Of Systemic Sclerosis (VEDOSS) study has shown that 82% of patients with Raynaud’s Phenomenon, specific ANA positivity and scleroderma pattern at nail fold videocapillaroscopy will fulfil classification criteria within 5 years. This is suggesting that there is a subclinical window of opportunity to diagnose systemic sclerosis (SSc) before clinical manifestations occur. In this scenario, a non-invasive tool to diagnose SSc in clinically unaffected skin might improve the early detection of disease in at risk-patients. Optical coherence tomography (OCT) of the skin has been shown to be a sensitive and accurate biomarker of skin fibrosis in SSc.Objectives:Here we aimed to assess the ability of skin OCT to “detect” SSc in clinically unaffected skin from a multicentre cohort.Methods:Dorsal forearm skin of SSc patients and matched-healthy controls (HC) was evaluated using VivoSight scanner (Michelson Diagnostics). Mean A-scans (mean OCT signal plotted against depth-in-tissue) were derived as previously described. Minimum Optical Density (MinOD), Maximum OD (MaxOD) and OD at 300 micron-depth (OD300) were calculated. Clinical involvement was assessed by an operator blinded to OCT findings using the mRSS. Receiver-operating characteristic (ROC) curve analysis was carried out for MinOD, MaxOD, and OD300 to evaluate their ability to discriminate between SSc and HC. Statistical analysis was performed using GraphPad Prism software V.7.0.Results:One hundred seventy four OCT images were collected from 87 subjects [43 SSc (39 Female, mean age 49.7±9.1 years) and 44 gender/age-matched healthy controls (HC) (36 Female, mean age 50.2±8.3 years)] in two different SSc centres. All patients fulfilled classification criteria for SSc. OCT measures demonstrated discriminative ability in SSc skin detection with any clinical skin involvement (0-3 at site of analysis) with an AUC of 0.73 (MinOD, 95%CI 0.64-0.81), 0.77 (MaxOD, 95%CI 0.7-0.85) and 0.82 (OD300, 95%CI 0.76-0.89); p<0.0001 for all as previously indicated. Most importantly, all three measures showed comparable performance in detecting scleroderma also in clinically unaffected skin (mRss=0 at site of analysis), with an AUC of 0.7 (95%CI 0.6-0.81, p=0.001), 0.72 (95%CI 0.61-0.83, p=0.0003) and 0.72 (95%CI 0.61-0.83, p=0.0003) for MinOD, MaxOD and OD300 respectively.Conclusion:Virtual biopsy by OCT recognises clinically unaffected skin of SSc patients from the HC skin. This is consistent with gene array data showing that scleroderma specific signatures are consistent in affected and clinically unaffected skin. These results inform future studies on at risk patients with clinically unaffected skin which may define a role for OCT in detecting subclinical SSc.Disclosure of Interests:Giuseppina Abignano: None declared, Duygu Temiz Karadağ: None declared, Ozcan Gundogdu: None declared, Giovanni Lettieri: None declared, Maria Carmela Padula: None declared, Angela Padula: None declared, Paul Emery Grant/research support from: AbbVie, Bristol-Myers Squibb, Merck Sharp & Dohme, Pfizer, Roche (all paid to employer), Consultant of: AbbVie (consultant, clinical trials, advisor), Bristol-Myers Squibb (consultant, clinical trials, advisor), Lilly (clinical trials, advisor), Merck Sharp & Dohme (consultant, clinical trials, advisor), Novartis (consultant, clinical trials, advisor), Pfizer (consultant, clinical trials, advisor), Roche (consultant, clinical trials, advisor), Samsung (clinical trials, advisor), Sandoz (clinical trials, advisor), UCB (consultant, clinical trials, advisor), Salvatore D’Angelo: None declared, Francesco Del Galdo: None declared

scholarly journals Temporomandibular disorders in patients with early rheumatoid arthritis and at-risk individuals in the Dutch population: a cross-sectional study

RMD Open ◽  
2021 ◽  
Vol 7 (1) ◽  
pp. e001485
Author(s):  
Johanna M Kroese ◽  
Catherine M C Volgenant ◽  
Wim Crielaard ◽  
Bruno Loos ◽  
Dirkjan van Schaardenburg ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
At Risk ◽  
Early Rheumatoid Arthritis ◽  
Temporomandibular Disorders ◽  
Self Report ◽  
Joint Disease ◽  
Control Group ◽  
Healthy Controls ◽  
Cross Sectional ◽  
Pain Diagnosis

ObjectiveTo evaluate the prevalence of temporomandibular disorders (TMD) in patients with early rheumatoid arthritis (ERA) and individuals at-risk of RA.Methods150 participants were recruited in three groups (50 per group): (1) patients with ERA (2010 EULAR criteria) (2) at-risk individuals and (3) healthy controls. All participants were tested for seropositivity of rheumatoid factor and anticitrullinated protein antibodies. A possible TMD diagnosis was determined according to the standardised and validated diagnostic criteria for TMD (DC/TMD) in five categories: myalgia, arthralgia, articular disc displacement, degenerative joint disease and headache attributed to TMD. Results were tested for the prevalence of TMD (all categories combined) and TMD pain (myalgia and/or arthralgia). To investigate a possible role for bruxism, a probable sleep and/or awake bruxism diagnosis was determined based on self-report and several clinical features.ResultsThe prevalence of any TMD diagnosis did not differ between the three groups. However, at-risk individuals more often had a TMD-pain diagnosis than healthy controls (p=0.046). No such difference was found between the ERA group and the control group. However, within the ERA group, seronegative patients had a TMD-pain diagnosis more often than seropositive patients (4/12 (33%) vs 3/38 (8%), p=0.048). Participants with a TMD-pain diagnosis were more often diagnosed with probable sleep bruxism than those without a TMD-pain diagnosis.ConclusionThe prevalence of TMD pain is increased in individuals at-risk of RA and seronegative ERA patients, and is associated with bruxism signs and symptoms. These results suggest that health professionals should be alert to TMD pain in these groups.

A meta-analysis of theory of mind and ‘mentalization’ in borderline personality disorder: a true neuro-social-cognitive or meta-social-cognitive impairment?

2021 ◽  
pp. 1-11
Author(s):  
Emre Bora
Keyword(s):  
Cognitive Impairment ◽  
Borderline Personality Disorder ◽  
Personality Disorder ◽  
Theory Of Mind ◽  
Cognitive Style ◽  
Social Cognitive ◽  
Meta Analysis ◽  
Borderline Personality ◽  
Healthy Controls ◽  
Meta Analyses

Abstract Background It is widely accepted that borderline personality disorder (BPD) is associated with significant impairments in mentalization and theory of mind (ToM) which are considered as closely related concepts by many authors particularly in psychoanalytical circles. However, for understanding interpersonal difficulties in personality disorders, it is important to distinguish neuro-social cognitive impairment from the abnormal meta-social-cognitive style of patients. Methods The current systematic review aimed to conduct separate meta-analyses of ‘mentalization’ [reflective functioning (RF] and different aspects of ToM in BPD. A literature search was conducted to locate relevant articles published between January 1990 to July 2021. Random-effect meta-analyses were conducted in 34 studies involving 1448 individuals with BPD and 2006 healthy controls. Results A very large impairment in RF was evident in BPD [d = 1.68, confidence interval (CI) = 1.17–2.19]. In contrast, ToM impairment was modest (d = 0.36, CI = 0.24–0.48). BPD patients underperformed healthy controls in ToM-reasoning (d = 0.44, CI = 0.32–0.56) but not ToM-decoding. Increased HyperToM (d = 0.60, CI = 0.41–0.79) and faux pas recognition (d = 0.62, CI = 0.35–0.90) errors in BPD compared to healthy controls were most robust ToM findings in this meta-analysis. Conclusions BPD is characterized by very severe deficits in RF and modest and selective abnormalities in ToM. Interpersonal problems and difficulties in processing social information in BPD can be best explained by patients' maldaptive meta-social cognitive style and top-down effects of these abnormalities rather than having a primary neuro-social cognitive deficit.

scholarly journals Altered fear processing in adolescents with a history of severe childhood maltreatment: an fMRI study

2018 ◽  
Vol 48 (7) ◽  
pp. 1092-1101 ◽  
Author(s):  
H. Hart ◽  
L. Lim ◽  
M. A. Mehta ◽  
A. Simmons ◽  
K. A. H. Mirza ◽  
...  
Keyword(s):  
Substance Abuse ◽  
Functional Connectivity ◽  
Childhood Maltreatment ◽  
Emotion Processing ◽  
Anterior Cingulate ◽  
Healthy Controls ◽  
Neural Basis ◽  
Fmri Study ◽  
History Of ◽  
Psychiatric Conditions

AbstractBackgroundChildren with a history of maltreatment suffer from altered emotion processing but the neural basis of this phenomenon is unknown. This pioneering functional magnetic resonance imaging (fMRI) study investigated the effects of severe childhood maltreatment on emotion processing while controlling for psychiatric conditions, medication and substance abuse.MethodTwenty medication-naive, substance abuse-free adolescents with a history of childhood abuse, 20 psychiatric control adolescents matched on psychiatric diagnoses but with no maltreatment and 27 healthy controls underwent a fMRI emotion discrimination task comprising fearful, angry, sad happy and neutral dynamic facial expressions.ResultsMaltreated participants responded faster to fearful expressions and demonstrated hyper-activation compared to healthy controls of classical fear-processing regions of ventromedial prefrontal cortex (vmPFC) and anterior cingulate cortex, which survived at a more lenient threshold relative to psychiatric controls. Functional connectivity analysis, furthermore, demonstrated reduced connectivity between left vmPFC and insula for fear in maltreated participants compared to both healthy and psychiatric controls.ConclusionsThe findings show that people who have experienced childhood maltreatment have enhanced fear perception, both at the behavioural and neurofunctional levels, associated with enhanced fear-related ventromedial fronto-cingulate activation and altered functional connectivity with associated limbic regions. Furthermore, the connectivity adaptations were specific to the maltreatment rather than to the developing psychiatric conditions, whilst the functional changes were only evident at trend level when compared to psychiatric controls, suggesting a continuum. The neurofunctional hypersensitivity of fear-processing networks may be due to childhood over-exposure to fear in people who have been abused.

Spinal cord neural activity of patients with fibromyalgia and healthy controls during temporal summation of pain: an fMRI study

2021 ◽  
Vol 126 (3) ◽  
pp. 946-956
Author(s):  
Roland Staud ◽  
Jeff Boissoneault ◽  
Song Lai ◽  
Marlin S. Mejia ◽  
Riddhi Ramanlal ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Chronic Pain ◽  
Neural Activity ◽  
Central Sensitization ◽  
Temporal Summation ◽  
Time Course ◽  
Pain Modulation ◽  
Healthy Controls ◽  
Fmri Study ◽  
Second Pain

“Windup” and its behavioral correlate “temporal-summation-of-second pain” (TSSP) represent spinal cord mechanisms of pain augmentation associated with central sensitization and chronic pain. Fibromyalgia (FM) is a chronic pain disorder, where abnormal TSSP has been demonstrated. We used fMRI to study spinal cord and brainstem activation during TSSP. We characterized the time course of spinal cord and brainstem BOLD activity during TSSP which showed abnormal brainstem activity in patients with FM, possibly due to deficient pain modulation.

scholarly journals Simulation and social behavior: an fMRI study of neural processing during simulation in individuals with and without risk for psychosis

2020 ◽  
Vol 15 (2) ◽  
pp. 165-174
Author(s):  
Sarah Hope Lincoln ◽  
Laura T Germine ◽  
Patrick Mair ◽  
Christine I Hooker
Keyword(s):  
At Risk ◽  
Social Behavior ◽  
Somatosensory Cortex ◽  
Internal Representation ◽  
Mental Simulation ◽  
Individual Variability ◽  
Risk Indicator ◽  
Schizophrenia Spectrum Disorders ◽  
Social Ability ◽  
Fmri Study

Abstract Social dysfunction is a risk indicator for schizophrenia spectrum disorders, with at-risk individuals demonstrating a range of social behavior impairments. Variability in social ability may be explained by individual differences in the psychological processes of social behavior. In particular, mental simulation, the process by which an individual generates an internal representation of the thoughts or feelings of another, may explain variation in social behavior. This study investigates the neural process of simulation in healthy individuals and individuals at risk for psychosis. Using a novel fMRI pain paradigm, individuals watch videos of another person’s hand or foot experiencing pain. After each video, individuals are asked to simulate the observed painful situation on their own hand or foot. Neural activity during simulation in the somatosensory cortex was associated with real-world self-reported social behavior, such that a stronger neural response in the somatosensory cortex was associated with greater rates of positive social experiences and affective empathy across all participants. These findings suggest that the neural mechanisms that underlie simulation are important for social behavior, and may explain individual variability in social functioning in healthy and at-risk populations.

scholarly journals Neuroanatomical correlates of different vulnerability states for psychosis and their clinical outcomes

2009 ◽  
Vol 195 (3) ◽  
pp. 218-226 ◽  
Author(s):  
Nikolaos Koutsouleris ◽  
Gisela J. E. Schmitt ◽  
Christian Gaser ◽  
Ronald Bottlender ◽  
Johanna Scheuerecker ◽  
...  
Keyword(s):  
At Risk ◽  
Clinical Outcome ◽  
Mental State ◽  
Grey Matter ◽  
Mental States ◽  
Grey Matter Volume ◽  
Healthy Controls ◽  
Imaging Data ◽  
Matter Volume ◽  
At Risk Mental State

BackgroundStructural brain abnormalities have been described in individuals with an at-risk mental state for psychosis. However, the neuroanatomical underpinnings of the early and late at-risk mental state relative to clinical outcome remain unclear.AimsTo investigate grey matter volume abnormalities in participants in a putatively early or late at-risk mental state relative to their prospective clinical outcome.MethodVoxel-based morphometry of magnetic resonance imaging data from 20 people with a putatively early at-risk mental state (ARMS–E group) and 26 people with a late at-risk mental state (ARMS–L group) as well as from 15 participants with at-risk mental states with subsequent disease transition (ARMS–T group) and 18 participants without subsequent disease transition (ARMS–NT group) were compared with 75 healthy volunteers.ResultsCompared with healthy controls, ARMS–L participants had grey matter volume losses in frontotemporolimbic structures. Participants in the ARMS–E group showed bilateral temporolimbic alterations and subtle prefrontal abnormalities. Participants in the ARMS–T group had prefrontal alterations relative to those in the ARMS–NT group and in the healthy controls that overlapped with the findings in the ARMS–L group.ConclusionsBrain alterations associated with the early at-risk mental state may relate to an elevated susceptibility to psychosis, whereas alterations underlying the late at-risk mental state may indicate a subsequent transition to psychosis.

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