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Kassim FM, Tod S, Rodger J, Hood SD, Lee JWY, Albrecht MA, Martin-Iverson MT. Nabilone Impairs Spatial and Verbal Working Memory in Healthy Volunteers. Cannabis Cannabinoid Res 2024; 9:199-211. [PMID: 36201240 DOI: 10.1089/can.2022.0099] [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] [Indexed: 11/13/2022] Open
Abstract
Background: Memory impairments and psychosis-like experiences can be adverse effects of cannabis use. However, reports on the cognitive impact of cannabis use are not consistent. There are also limited studies on the psychotomimetic effects of cannabinoid compounds to reveal the association between cannabis and psychosis. Therefore, we investigated the effect of acute cannabinoid intoxication on verbal working memory (VWM) and spatial working memory (SWM) following oral doses of the synthetic cannabinoid agonist, nabilone (1-2 mg, oral). We further investigated the effect of nabilone on psychosis-like experiences (schizotypy scores) and associations of schizotypy with VWM and SWM. Methods: Healthy participants (n=28) completed spatial and digit span tasks across different delay conditions (0, 6, 12, and 18 sec) after receiving nabilone (1-2 mg, PO) or placebo in a randomized, double-blind, counterbalanced, crossover manner. A subset of participants completed a short battery of schizotypy measures (n=25). Results: Nabilone impaired VWM (p=0.03, weak effect size η2=0.02) and SWM (p=0.00016, η2=0.08). Nabilone did not significantly change overall schizotypy scores. Schizotypy scores were negatively correlated with working memory (WM) averaged across all delays and both modalities, under placebo (ρ=-0.41, p=0.04). In addition, there were significant negative correlations between occasions of cannabis use and overall WM averaged scores across drug treatments (ρ=-0.49, p=0.007) and under placebo (ρ=-0.45, p=0.004). The results showed that the drug effect in the less frequent cannabis users was more pronounced on the SWM (p<0.01) and VWM (p<0.01), whereas there appeared to be little drug effect in the frequent cannabis users. Conclusion: Low doses of synthetic cannabinoid impaired SWM and VWM, indicating that exogenous activation of the cannabinoid system influences cognitive performance. Further, the results replicated previous findings that schizotypy is correlated with deficits in WM. Clinical Trial Registry Name: Nabilone and caffeine effects on the perceptions of visually, auditory, tactile and multimodal illusions in healthy volunteers. Clinical Trial Registration Number: CT-2018-CTN-02561 (Therapeutic Goods Administration Clinical Trial Registry) and ACTRN12618001292268 (The Australian New Zealand Clinical Trials Registry).
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Affiliation(s)
- Faiz M Kassim
- Psychopharmacology Research Unit, Discipline of Pharmacology, School of Biomedical Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - Sophie Tod
- Psychopharmacology Research Unit, Discipline of Pharmacology, School of Biomedical Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - Jennifer Rodger
- Experimental and Regenerative Neurosciences, School of Biological Sciences, University of Western Australia, Crawley, Western Australia, Australia
- Brain Plasticity Group, Perron Institute for Neurological and Translational Science, Nedlands, Western Australia, Australia
| | - Sean D Hood
- Division of Psychiatry, Medical School, University of Western Australia, Perth, Western Australia, Australia
| | - Joseph W Y Lee
- Division of Psychiatry, Medical School, University of Western Australia, Perth, Western Australia, Australia
| | - Matthew A Albrecht
- Western Australian Centre for Road Safety Research, School of Psychological Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - Mathew T Martin-Iverson
- Psychopharmacology Research Unit, Discipline of Pharmacology, School of Biomedical Sciences, University of Western Australia, Perth, Western Australia, Australia
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González-Rodríguez A, García-Pérez Á, Godoy-Giménez M, Sayans-Jiménez P, Cañadas F, Estévez AF. The role of the differential outcomes procedure and schizotypy in the recognition of dynamic facial expressions of emotions. Sci Rep 2024; 14:2322. [PMID: 38282111 PMCID: PMC10822869 DOI: 10.1038/s41598-024-52893-9] [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: 04/10/2023] [Accepted: 01/24/2024] [Indexed: 01/30/2024] Open
Abstract
Emotional facial expression recognition is a key ability for adequate social functioning. The current study aims to test if the differential outcomes procedure (DOP) may improve the recognition of dynamic facial expressions of emotions and to further explore whether schizotypal personality traits may have any effect on performance. 183 undergraduate students completed a task where a face morphed from a neutral expression to one of the six basic emotions at full intensity over 10 s. Participants had to press spacebar as soon as they identified the emotion and choose which had appeared. In the first block, participants received no outcomes. In the second block, a group received specific outcomes associated to each emotion (DOP group), while another group received non-differential outcomes after correctly responding (NOP group). Employing generalized linear models (GLMs) and Bayesian inference we estimated different parameters to answer our research goals. Schizotypal personality traits did not seem to affect dynamic emotional facial expression recognition. Participants of the DOP group were less likely to respond incorrectly to faces showing Fear and Surprise at fewer intensity levels. This may suggest that the DOP could lead to better identification of the main features that differentiate each facial expression of emotion.
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Affiliation(s)
- Antonio González-Rodríguez
- Department of Psychology, University of Almería, Ctra Sacramento S/N, La Cañada de San Urbano, CP: 04120, Almería, Spain
- CEINSA Health Research Centre, University of Almería, Almería, Spain
| | - Ángel García-Pérez
- Department of Psychology, University of Almería, Ctra Sacramento S/N, La Cañada de San Urbano, CP: 04120, Almería, Spain
- CIBIS Research Centre, University of Almería, Almería, Spain
| | - Marta Godoy-Giménez
- Department of Psychology, University of Almería, Ctra Sacramento S/N, La Cañada de San Urbano, CP: 04120, Almería, Spain
- CEINSA Health Research Centre, University of Almería, Almería, Spain
| | - Pablo Sayans-Jiménez
- Department of Psychology, University of Almería, Ctra Sacramento S/N, La Cañada de San Urbano, CP: 04120, Almería, Spain
- CEINSA Health Research Centre, University of Almería, Almería, Spain
| | - Fernando Cañadas
- Department of Psychology, University of Almería, Ctra Sacramento S/N, La Cañada de San Urbano, CP: 04120, Almería, Spain
- CIBIS Research Centre, University of Almería, Almería, Spain
| | - Angeles F Estévez
- Department of Psychology, University of Almería, Ctra Sacramento S/N, La Cañada de San Urbano, CP: 04120, Almería, Spain.
- CIBIS Research Centre, University of Almería, Almería, Spain.
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Kassim FM, Lim JHM, Slawik SV, Gaus K, Peters B, Lee JWY, Hepple EK, Rodger J, Albrecht MA, Martin-Iverson MT. The effects of caffeine and d-amphetamine on spatial span task in healthy participants. PLoS One 2023; 18:e0287538. [PMID: 37440493 PMCID: PMC10343048 DOI: 10.1371/journal.pone.0287538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 06/06/2023] [Indexed: 07/15/2023] Open
Abstract
Studies that examined the effect of amphetamine or caffeine on spatial working memory (SWM) and verbal working memory (VWM) have used various tasks. However, there are no studies that have used spatial span tasks (SSTs) to assess the SWM effect of amphetamine and caffeine, although some studies have used digit span tasks (DST) to assess VWM. Previous reports also showed that increasing dopamine increases psychosis-like experiences (PLE, or schizotypy) scores which are in turn negatively associated with WM performance in people with high schizotypy and people with schizophrenia. Therefore, the present study aimed to examine the influence of d-amphetamine (0.45 mg/kg, PO), a dopamine releasing stimulant, on SST, DST, and on PLE in healthy volunteers. In a separate study, we examined the effect of caffeine, a nonspecific adenosine receptor antagonist with stimulant properties, on similar tasks. METHODS Healthy participants (N = 40) took part in two randomized, double-blind, counter-balanced placebo-controlled cross-over pilot studies: The first group (N = 20) with d-amphetamine (0.45 mg/kg, PO) and the second group (N = 20) with caffeine (200 mg, PO). Spatial span and digit span were examined under four delay conditions (0, 2, 4, 8 s). PLE were assessed using several scales measuring various aspects of psychosis and schizotypy. RESULTS We failed to find an effect of d-amphetamine or caffeine on SWM or VWM, relative to placebo. However, d-amphetamine increased a composite score of psychosis-like experiences (p = 0.0005), specifically: Scores on Brief Psychiatric Rating Scale, Perceptual Aberrations Scale, and Magical Ideation Scale were increased following d-amphetamine. The degree of change in PLE following d-amphetamine negatively and significantly correlated with changes in SWM, mainly at the longest delay condition of 8 s (r = -0.58, p = 0.006). CONCLUSION The present results showed that moderate-high dose of d-amphetamine and moderate dose of caffeine do not directly affect performances on DST or SST. However, the results indicate that d-amphetamine indirectly influences SWM, through its effect on psychosis-like experiences. TRIAL REGISTRATION CLINICAL TRIAL REGISTRATION NUMBER CT-2018-CTN-02561 (Therapeutic Goods Administration Clinical Trial Registry) and ACTRN12618001292268 (The Australian New Zealand Clinical Trials Registry) for caffeine study, and ACTRN12608000610336 for d-amphetamine study.
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Affiliation(s)
- Faiz M. Kassim
- Psychopharmacology Research Unit, School of Biomedical Sciences, University of Western Australia, Perth, WA, Australia
- Department of Psychiatry, St. Paul’s Hospital Millennium Medical College, Addis Ababa, Ethiopia
| | - J. H. Mark Lim
- Psychopharmacology Research Unit, School of Biomedical Sciences, University of Western Australia, Perth, WA, Australia
| | - Sophie V. Slawik
- Faculty of Human and Health Sciences, Psychology, University of Bremen, Bremen, Germany
| | - Katharina Gaus
- Faculty of Human and Health Sciences, Psychology, University of Bremen, Bremen, Germany
| | - Benjamin Peters
- Department of Psychiatry, St. Paul’s Hospital Millennium Medical College, Addis Ababa, Ethiopia
| | - Joseph W. Y. Lee
- Psychiatry, Medical School, University of Western Australia, Perth, WA, Australia
| | - Emily K. Hepple
- Mental Health, North Metropolitan Health Services, Perth, WA, Australia
| | - Jennifer Rodger
- Experimental and Regenerative Neurosciences, School of Biological Sciences, University of Western Australia, Crawley, WA, Australia
- Brain Plasticity Group, Perron Institute for Neurological and Translational Science, Nedlands, WA, Australia
| | - Matthew A. Albrecht
- Western Australian Centre for Road Safety Research, School of Psychological Science, University of Western Australa, Crawley, WA, Australia
| | - Mathew T. Martin-Iverson
- Psychopharmacology Research Unit, School of Biomedical Sciences, University of Western Australia, Perth, WA, Australia
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Zouraraki C, Karamaouna P, Giakoumaki SG. Facial emotion recognition and schizotypal traits: A systematic review of behavioural studies. Early Interv Psychiatry 2023; 17:121-140. [PMID: 35840128 DOI: 10.1111/eip.13328] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 03/19/2022] [Accepted: 05/29/2022] [Indexed: 11/27/2022]
Abstract
AIM Previous research has indicated that individuals expressing high schizotypal traits and patients with Schizotypal Personality Disorder (SPD), show deficits in facial emotion recognition, compared to low schizotypal or control groups. On the other hand, non-significant findings also exist and the association of facial emotion recognition deficits with the different schizotypal dimensions is not well defined, thus limiting any conclusive outcomes. Therefore, the aim of this systematic review was to further clarify this relationship. METHODS PsychInfo, Web of Science, Scopus and PubMed were systematically searched, and 23 papers with a cross-sectional design were selected. Nineteen studies examined individuals with high schizotypal traits and four studies evaluated SPD individuals with behavioural facial emotion recognition paradigms and self-report measures or clinical interviews for schizotypal traits. All selected studies were published between 1994 and August 2020. RESULTS According to the evidence of studies, high schizotypal individuals and SPD patients have poorer performance in facial emotion recognition tasks. Negative schizotypy was related to lower accuracy for positive and negative emotions and faster emotion labeling while positive schizotypy was associated with worse accuracy for positive, negative and neutral emotions and more biases. Disorganized schizotypy was associated with poorer accuracy for negative emotions and suspiciousness with higher accuracy for disgust faces but lower total accuracy. CONCLUSIONS These findings are consistent with the vulnerability for schizophrenia spectrum disorders and support the idea that emotion recognition deficits are trait markers for these conditions. Thus, the effectiveness of early-intervention programmes could increase by also targeting this class of deficits.
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Affiliation(s)
- Chrysoula Zouraraki
- Laboratory of Neuropsychology, Department of Psychology, Faculty of Social Sciences, University of Crete, Rethymno, Greece
- University of Crete Research Center for the Humanities, The Social and Educational Sciences (UCRC), University of Crete, Rethymno, Greece
| | - Penny Karamaouna
- Laboratory of Neuropsychology, Department of Psychology, Faculty of Social Sciences, University of Crete, Rethymno, Greece
- University of Crete Research Center for the Humanities, The Social and Educational Sciences (UCRC), University of Crete, Rethymno, Greece
| | - Stella G Giakoumaki
- Laboratory of Neuropsychology, Department of Psychology, Faculty of Social Sciences, University of Crete, Rethymno, Greece
- University of Crete Research Center for the Humanities, The Social and Educational Sciences (UCRC), University of Crete, Rethymno, Greece
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Uono S, Sato W, Sawada R, Kawakami S, Yoshimura S, Toichi M. Schizotypy is associated with difficulties detecting emotional facial expressions. ROYAL SOCIETY OPEN SCIENCE 2021; 8:211322. [PMID: 34849248 PMCID: PMC8611324 DOI: 10.1098/rsos.211322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 10/27/2021] [Indexed: 06/13/2023]
Abstract
People with schizophrenia or subclinical schizotypal traits exhibit impaired recognition of facial expressions. However, it remains unclear whether the detection of emotional facial expressions is impaired in people with schizophrenia or high levels of schizotypy. The present study examined whether the detection of emotional facial expressions would be associated with schizotypy in a non-clinical population after controlling for the effects of IQ, age, and sex. Participants were asked to respond to whether all faces were the same as quickly and as accurately as possible following the presentation of angry or happy faces or their anti-expressions among crowds of neutral faces. Anti-expressions contain a degree of visual change that is equivalent to that of normal emotional facial expressions relative to neutral facial expressions and are recognized as neutral expressions. Normal expressions of anger and happiness were detected more rapidly and accurately than their anti-expressions. Additionally, the degree of overall schizotypy was negatively correlated with the effectiveness of detecting normal expressions versus anti-expressions. An emotion-recognition task revealed that the degree of positive schizotypy was negatively correlated with the accuracy of facial expression recognition. These results suggest that people with high levels of schizotypy experienced difficulties detecting and recognizing emotional facial expressions.
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Affiliation(s)
- Shota Uono
- Department of Neurodevelopmental Psychiatry, Habilitation, and Rehabilitation, Graduate School of Medicine, Kyoto University, 53 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Wataru Sato
- Kokoro Research Center, Kyoto University, 46 Shimoadachi, Sakyo-ku, Kyoto 606-8501, Japan
| | - Reiko Sawada
- Faculty of Human Health Sciences, Graduate School of Medicine, Kyoto University, 53 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
- The Organization for Promoting Neurodevelopmental Disorder Research, 40 Shogoin-Sannocho, Sakyo-ku, Kyoto 606-8392, Japan
| | - Sayaka Kawakami
- Faculty of Human Health Sciences, Graduate School of Medicine, Kyoto University, 53 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Sayaka Yoshimura
- Department of Neurodevelopmental Psychiatry, Habilitation, and Rehabilitation, Graduate School of Medicine, Kyoto University, 53 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Motomi Toichi
- Faculty of Human Health Sciences, Graduate School of Medicine, Kyoto University, 53 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
- The Organization for Promoting Neurodevelopmental Disorder Research, 40 Shogoin-Sannocho, Sakyo-ku, Kyoto 606-8392, Japan
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Dawes C, Danielmeier C, Haselgrove M, Moran PM. High Schizotypy Predicts Emotion Recognition Independently of Negative Affect. Front Psychiatry 2021; 12:738344. [PMID: 34630186 PMCID: PMC8495418 DOI: 10.3389/fpsyt.2021.738344] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 08/20/2021] [Indexed: 11/13/2022] Open
Abstract
Introduction: Deficits in Emotion Recognition (ER) contribute significantly to poorer functional outcomes in people with schizophrenia. However, rather than reflecting a core symptom of schizophrenia, reduced ER has been suggested to reflect increased mood disorder co-morbidity and confounds of patient status such as medication. We investigated whether ER deficits are replicable in psychometrically defined schizotypy, and whether this putative association is mediated by increased negative affect. Methods: Two hundred and nine participants between the ages of 18 and 69 (66% female) were recruited from online platforms: 80% held an undergraduate qualification or higher, 44% were current students, and 46% were in current employment. Participants were assessed on psychometric schizotypy using the O-LIFE which maps onto the same symptoms structure (positive, negative, and disorganised) as schizophrenia. Negative affect was assessed using the Depression Anxiety and Stress Scale (DASS-21). Emotion Recognition of both positive and negative emotions was assessed using the short version of the Geneva Emotion Recognition Task (GERT-S). Results: Negative schizotypy traits predicted poorer ER accuracy to negative emotions (β = -0.192, p = 0.002) as predicted. Unexpectedly, disorganised schizotypy traits predicted improved performance to negative emotions (β = 0.256, p = 0.007) (primarily disgust). Negative affect was found to be unrelated to ER performance of either valence (both p > 0.591). No measure predicted ER accuracy of positive emotions. Positive schizotypy traits were not found to predict either positive or negative ER accuracy. However, positive schizotypy predicted increased confidence in decisions and disorganised schizotypy predicted reduced confidence in decisions. Discussion: The replication of ER deficits in non-clinical negative schizotypy suggests that the association between negative symptoms and ER deficits in clinical samples may be independent of confounds of patient status (i.e., anti-psychotic medication). The finding that this association was independent of negative affect further suggests ER deficits in patients may also be independent of mood disorder co-morbidity. This association was not demonstrated for the positive symptom dimension of the O-LIFE, which may be due to low levels of this trait in the current sample.
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Seo E, Park HY, Park K, Koo SJ, Lee SY, Min JE, Lee E, An SK. Impaired Facial Emotion Recognition in Individuals at Ultra-High Risk for Psychosis and Associations With Schizotypy and Paranoia Level. Front Psychiatry 2020; 11:577. [PMID: 32676040 PMCID: PMC7333645 DOI: 10.3389/fpsyt.2020.00577] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 06/05/2020] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Patients with schizophrenia and individuals at ultra-high risk for psychosis (UHR) have been reported to exhibit impaired recognition of facial emotion expressions. This impairment has involved both inaccuracy and negative bias of facial emotion recognition. The present study aimed to investigate whether UHR individuals display both types of impaired facial emotion recognition and to explore correlations between these impairments and schizotypy, as well as paranoia levels, in these individuals. METHODS A total of 43 UHR individuals and 57 healthy controls (HC) completed a facial emotion recognition task consisting of 60 standardized facial photographs. To explore correlations, we assessed schizotypy using the Revised Physical Anhedonia Scale and Magical Ideation Scale and paranoia level using the Paranoia Scale and persecution/suspicious item of the Positive and Negative Syndrome Scale in UHR individuals. RESULTS Compared with HC, UHR individuals exhibited less accuracy for facial emotion recognition (70.6% vs. 75.6%, p=0.010) and a higher rate of "fear" responses for neutral faces (14.5% vs. 6.0%, p=0.003). In UHR individuals, inaccuracy was significantly correlated with schizotypy scores, but not with paranoia level. Conversely, "disgust" response for neutral faces was the only fear response correlated with paranoia level, and no threat-related emotion response correlated with schizotypy scores. DISCUSSION UHR individuals exhibited inaccuracy and negative bias of facial emotion recognition. Furthermore, schizotypy scores were associated with inaccuracy but not with negative bias of facial emotion recognition. Paranoia level was correlated with "disgust" responses for neutral faces but not with inaccuracy. These findings suggest that inaccuracy and negative bias of facial emotion recognition reflect different underlying processes, and that inaccuracy may be a vulnerability marker for schizophrenia.
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Affiliation(s)
- Eunchong Seo
- Section of Self, Affect and Neuroscience, Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, South Korea.,Department of Psychiatry, Yonsei University College of Medicine, Severance Hospital, Seoul, South Korea
| | - Hye Yoon Park
- Section of Self, Affect and Neuroscience, Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, South Korea.,Department of Psychiatry, Yonsei University College of Medicine, Severance Hospital, Seoul, South Korea
| | - Kyungmee Park
- Department of Psychiatry, Yonsei University College of Medicine, Severance Hospital, Seoul, South Korea.,Department of Hospital Medicine, Yonsei University College of Medicine, Yongin Severance Hospital, Gyeonggi-do, South Korea
| | - Se Jun Koo
- Section of Self, Affect and Neuroscience, Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Su Young Lee
- Department of Psychiatry, Myongji Hospital, Gyeonggi-do, South Korea
| | - Jee Eun Min
- Section of Self, Affect and Neuroscience, Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Eun Lee
- Section of Self, Affect and Neuroscience, Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, South Korea.,Department of Psychiatry, Yonsei University College of Medicine, Severance Hospital, Seoul, South Korea
| | - Suk Kyoon An
- Section of Self, Affect and Neuroscience, Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, South Korea.,Department of Psychiatry, Yonsei University College of Medicine, Severance Hospital, Seoul, South Korea.,Graduate Program in Cognitive Science, Yonsei University, Seoul, South Korea
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Stanfield AC, Philip RCM, Whalley H, Romaniuk L, Hall J, Johnstone EC, Lawrie SM. Dissociation of Brain Activation in Autism and Schizotypal Personality Disorder During Social Judgments. Schizophr Bull 2017; 43:1220-1228. [PMID: 29088456 PMCID: PMC5737648 DOI: 10.1093/schbul/sbx083] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Background There are overlaps between autism and schizophrenia but these are particularly pronounced, especially in social domains, for higher functioning individuals with autism spectrum disorders (ASD) or schizotypal personality disorder (SPD). It is not known whether these overlapping social deficits result from shared or distinct brain mechanisms. We therefore compared social cognition in ASD and SPD using functional magnetic resonance imaging (fMRI). Methods Twenty-one individuals with SPD, 28 with ASD and 33 controls were compared with respect to clinical symptoms using the Positive and Negative Syndrome Scale; social cognition, using a social judgment task and Ekman 60 faces task; and brain activation using an fMRI task of social judgment. Results The ASD and SPD groups showed few differences in symptoms or social cognition. However, fMRI showed that, compared to ASD, the SPD group showed significantly greater activation during social compared to gender judgments in the amygdala and 3 clusters: right posterior cerebellum, extending into fusiform and inferior temporal gyri; left posterior cerebellum; and left intraparietal sulcus extending through medial portions of the temporal gyri into the fusiform gyrus (all P < .05 family-wise error corrected). Control activations lay between the ASD and SPD groups. Conclusions Although social cognitive deficits in ASD and SPD appear superficially similar they are the result of different brain mechanisms. These findings have implications for therapeutic interventions targeted at social dysfunction in these conditions.
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Affiliation(s)
- Andrew C Stanfield
- Patrick Wild Centre, University of Edinburgh, Edinburgh, UK
- Division of Psychiatry, University of Edinburgh, Edinburgh, UK
| | - Ruth C M Philip
- Division of Psychiatry, University of Edinburgh, Edinburgh, UK
- Tailor Ed Foundation, Edinburgh, UK
| | - Heather Whalley
- Division of Psychiatry, University of Edinburgh, Edinburgh, UK
| | - Liana Romaniuk
- Division of Psychiatry, University of Edinburgh, Edinburgh, UK
| | - Jeremy Hall
- Institute of Psychological Medicine and Clinical Neurosciences, University of Cardiff, Cardiff, UK
| | - Eve C Johnstone
- Division of Psychiatry, University of Edinburgh, Edinburgh, UK
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Pries LK, Guloksuz S, Menne-Lothmann C, Decoster J, van Winkel R, Collip D, Delespaul P, De Hert M, Derom C, Thiery E, Jacobs N, Wichers M, Simons CJP, Rutten BPF, van Os J. White noise speech illusion and psychosis expression: An experimental investigation of psychosis liability. PLoS One 2017; 12:e0183695. [PMID: 28832672 PMCID: PMC5567924 DOI: 10.1371/journal.pone.0183695] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Accepted: 08/09/2017] [Indexed: 12/18/2022] Open
Abstract
Background An association between white noise speech illusion and psychotic symptoms has been reported in patients and their relatives. This supports the theory that bottom-up and top-down perceptual processes are involved in the mechanisms underlying perceptual abnormalities. However, findings in nonclinical populations have been conflicting. Objectives The aim of this study was to examine the association between white noise speech illusion and subclinical expression of psychotic symptoms in a nonclinical sample. Findings were compared to previous results to investigate potential methodology dependent differences. Methods In a general population adolescent and young adult twin sample (n = 704), the association between white noise speech illusion and subclinical psychotic experiences, using the Structured Interview for Schizotypy—Revised (SIS-R) and the Community Assessment of Psychic Experiences (CAPE), was analyzed using multilevel logistic regression analyses. Results Perception of any white noise speech illusion was not associated with either positive or negative schizotypy in the general population twin sample, using the method by Galdos et al. (2011) (positive: ORadjusted: 0.82, 95% CI: 0.6–1.12, p = 0.217; negative: ORadjusted: 0.75, 95% CI: 0.56–1.02, p = 0.065) and the method by Catalan et al. (2014) (positive: ORadjusted: 1.11, 95% CI: 0.79–1.57, p = 0.557). No association was found between CAPE scores and speech illusion (ORadjusted: 1.25, 95% CI: 0.88–1.79, p = 0.220). For the Catalan et al. (2014) but not the Galdos et al. (2011) method, a negative association was apparent between positive schizotypy and speech illusion with positive or negative affective valence (ORadjusted: 0.44, 95% CI: 0.24–0.81, p = 0.008). Conclusion Contrary to findings in clinical populations, white noise speech illusion may not be associated with psychosis proneness in nonclinical populations.
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Affiliation(s)
- Lotta-Katrin Pries
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Sinan Guloksuz
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands
- Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut, United States of America
| | - Claudia Menne-Lothmann
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Jeroen Decoster
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands
- University Psychiatric Centre KU Leuven, Leuven, Belgium
| | - Ruud van Winkel
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands
- University Psychiatric Centre KU Leuven, Leuven, Belgium
| | - Dina Collip
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Philippe Delespaul
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Marc De Hert
- University Psychiatric Centre KU Leuven, Leuven, Belgium
| | - Catherine Derom
- Centre of Human Genetics, University Hospitals Leuven, KU Leuven, Leuven, Belgium
- Department of Obstetrics and Gynecology, Ghent University Hospitals, Ghent University, Ghent, Belgium
| | - Evert Thiery
- Department of Neurology, Ghent University Hospital, Ghent University, Ghent, Belgium
| | - Nele Jacobs
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands
- Faculty of Psychology and Educational Sciences, Open University of the Netherlands, Heerlen, The Netherlands
| | - Marieke Wichers
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands
- University of Groningen, University Medical Center Groningen, Department of Psychiatry, Interdisciplinary Center Psychopathology and Emotion regulation (ICPE), Groningen, The Netherlands
| | - Claudia J. P. Simons
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands
- GGzE, Institute for Mental Health Care Eindhoven and De Kempen, Eindhoven, The Netherlands
| | - Bart P. F. Rutten
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Jim van Os
- Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands
- King's College London, King's Health Partners, Department of Psychosis Studies, Institute of Psychiatry, London, United Kingdom
- * E-mail:
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10
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Janik McErlean AB, Susilo T, Rezlescu C, Bray A, Banissy MJ. Social perception in synaesthesia for colour. Cogn Neuropsychol 2016; 33:378-387. [PMID: 27937073 DOI: 10.1080/02643294.2016.1261820] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Synaesthesia is a rare phenomenon in which stimulation in one modality (e.g., audition) evokes a secondary percept not associated with the first (e.g., colour). Prior work has suggested links between synaesthesia and other neurodevelopmental conditions that are linked to altered social perception abilities. With this in mind, here we sought to examine social perception abilities in grapheme-colour synaesthesia (where achromatic graphemes evoke colour experiences) by examining facial identity and facial emotion perception in synaesthetes and controls. Our results indicate that individuals who experience grapheme-colour synaesthesia outperformed controls on tasks involving fine visual discrimination of facial identity and emotion, but not on tasks involving holistic face processing. These findings are discussed in the context of broader perceptual and cognitive traits previously associated with synaesthesia for colour, with the suggestion that performance benefits shown by grapheme-colour synaesthetes may be related to domain-general visual discrimination biases observed in this group.
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Affiliation(s)
- Agnieszka B Janik McErlean
- a Department of Psychology , Goldsmiths University of London , London , UK.,b Department of Psychology , James Cook University , Singapore
| | - Tirta Susilo
- c School of Psychology , Victoria University of Wellington , Wellington , New Zealand
| | - Constantin Rezlescu
- d Department of Psychology , Harvard University , Cambridge , MA , USA.,e Institute of Cognitive Neuroscience , University College London , London , UK
| | - Amy Bray
- f Department of Psychological and Brain Sciences , Dartmouth College , Hanover , NH , USA
| | - Michael J Banissy
- a Department of Psychology , Goldsmiths University of London , London , UK
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11
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Hargreaves A, Mothersill O, Anderson M, Lawless S, Corvin A, Donohoe G. Detecting facial emotion recognition deficits in schizophrenia using dynamic stimuli of varying intensities. Neurosci Lett 2016; 633:47-54. [PMID: 27637386 DOI: 10.1016/j.neulet.2016.09.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 08/24/2016] [Accepted: 09/12/2016] [Indexed: 11/27/2022]
Abstract
BACKGROUND Deficits in facial emotion recognition have been associated with functional impairments in patients with Schizophrenia (SZ). Whilst a strong ecological argument has been made for the use of both dynamic facial expressions and varied emotion intensities in research, SZ emotion recognition studies to date have primarily used static stimuli of a singular, 100%, intensity of emotion. To address this issue, the present study aimed to investigate accuracy of emotion recognition amongst patients with SZ and healthy subjects using dynamic facial emotion stimuli of varying intensities. To this end an emotion recognition task (ERT) designed by Montagne (2007) was adapted and employed. METHODS 47 patients with a DSM-IV diagnosis of SZ and 51 healthy participants were assessed for emotion recognition. Results of the ERT were tested for correlation with performance in areas of cognitive ability typically found to be impaired in psychosis, including IQ, memory, attention and social cognition. RESULTS Patients were found to perform less well than healthy participants at recognising each of the 6 emotions analysed. Surprisingly, however, groups did not differ in terms of impact of emotion intensity on recognition accuracy; for both groups higher intensity levels predicted greater accuracy, but no significant interaction between diagnosis and emotional intensity was found for any of the 6 emotions. Accuracy of emotion recognition was, however, more strongly correlated with cognition in the patient cohort. DISCUSSION Whilst this study demonstrates the feasibility of using ecologically valid dynamic stimuli in the study of emotion recognition accuracy, varying the intensity of the emotion displayed was not demonstrated to impact patients and healthy participants differentially, and thus may not be a necessary variable to include in emotion recognition research.
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Affiliation(s)
- A Hargreaves
- Department of Psychiatry, Trinity College Dublin, Dublin, Ireland; Department of Psychology, National College of Ireland, Dublin, Ireland.
| | - O Mothersill
- School of Psychology, National University of Ireland Galway, Galway, Ireland
| | - M Anderson
- Department of Psychiatry, Trinity College Dublin, Dublin, Ireland
| | - S Lawless
- Department of Psychiatry, Trinity College Dublin, Dublin, Ireland
| | - A Corvin
- Department of Psychiatry, Trinity College Dublin, Dublin, Ireland
| | - G Donohoe
- Department of Psychiatry, Trinity College Dublin, Dublin, Ireland; School of Psychology, National University of Ireland Galway, Galway, Ireland
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12
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Terrien S, Gobin P, Iakimova G, Coutté A, Thuaire F, Baltazart V, Mazzola-Pomietto P, Besche-Richard C. Electrophysiological correlates of emotional meaning in context in relation to facets of schizotypal personality traits: A dimensional study. Psychiatry Clin Neurosci 2016; 70:141-50. [PMID: 26482112 DOI: 10.1111/pcn.12366] [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: 02/28/2015] [Revised: 09/28/2015] [Accepted: 10/15/2015] [Indexed: 11/29/2022]
Abstract
AIMS The aim of this study was to investigate the neurocognitive processes mediating the processing of emotional information during the integration of contextual and social information in a schizotypal population. METHODS One hundred and thirty-one healthy participants were evaluated using the Schizotypal Personality Questionnaire and event-related potentials were recorded during a linguistic task in which participants read sentence pairs describing short social situations to themselves. The first sentence implicitly conveyed the positive or negative emotional state of a character. The second sentence was emotionally congruent or incongruent with the first sentence. RESULTS Across our overall sample, our results revealed a greater N400 effect at right sites than left sites, whereas the late positive component effect was only observed at left sites. Concerning the correlation results, we observed a negative link between positive and global schizotypy and N400 modulation in response to congruent targets for positive context sentences. Results also showed a positive correlation between negative schizotypy and late positive component modulation in response to congruent targets for negative context sentences. CONCLUSIONS These results suggest that the different facets of the schizotypal personality traits influenced the integration of emotional context at the level of both early and later-mobilized neurocognitive processes.
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Affiliation(s)
- Sarah Terrien
- Cognition, Health, Socialisation Laboratory, University of Reims Champagne-Ardenne, Reims
| | - Pamela Gobin
- Cognition, Health, Socialisation Laboratory, University of Reims Champagne-Ardenne, Reims
| | - Galina Iakimova
- Anthropology, Cognitive and Social Psychology Laboratory, LAPCOS, University of Nice-Sophia Antipolis, Nice
| | - Alexandre Coutté
- Anthropology, Cognitive and Social Psychology Laboratory, LAPCOS, University of Nice-Sophia Antipolis, Nice
| | | | - Véronique Baltazart
- Cognition, Health, Socialisation Laboratory, University of Reims Champagne-Ardenne, Reims
| | | | - Chrystel Besche-Richard
- Cognition, Health, Socialisation Laboratory, University of Reims Champagne-Ardenne, Reims.,French Universitary Institute, Paris, France
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13
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Yang C, Zhang T, Li Z, Heeramun-Aubeeluck A, Liu N, Huang N, Zhang J, He L, Li H, Tang Y, Chen F, Liu F, Wang J, Lu Z. The relationship between facial emotion recognition and executive functions in first-episode patients with schizophrenia and their siblings. BMC Psychiatry 2015; 15:241. [PMID: 26449211 PMCID: PMC4599651 DOI: 10.1186/s12888-015-0618-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Accepted: 09/28/2015] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Although many studies have examined executive functions and facial emotion recognition in people with schizophrenia, few of them focused on the correlation between them. Furthermore, their relationship in the siblings of patients also remains unclear. The aim of the present study is to examine the correlation between executive functions and facial emotion recognition in patients with first-episode schizophrenia and their siblings. METHODS Thirty patients with first-episode schizophrenia, their twenty-six siblings, and thirty healthy controls were enrolled. They completed facial emotion recognition tasks using the Ekman Standard Faces Database, and executive functioning was measured by Wisconsin Card Sorting Test (WCST). Hierarchical regression analysis was applied to assess the correlation between executive functions and facial emotion recognition. RESULTS Our study found that in siblings, the accuracy in recognizing low degree 'disgust' emotion was negatively correlated with the total correct rate in WCST (r = -0.614, p = 0.023), but was positively correlated with the total error in WCST (r = 0.623, p = 0.020); the accuracy in recognizing 'neutral' emotion was positively correlated with the total error rate in WCST (r = 0.683, p = 0.014) while negatively correlated with the total correct rate in WCST (r = -0.677, p = 0.017). People with schizophrenia showed an impairment in facial emotion recognition when identifying moderate 'happy' facial emotion, the accuracy of which was significantly correlated with the number of completed categories of WCST (R(2) = 0.432, P < .05). There were no correlations between executive functions and facial emotion recognition in the healthy control group. CONCLUSIONS Our study demonstrated that facial emotion recognition impairment correlated with executive function impairment in people with schizophrenia and their unaffected siblings but not in healthy controls.
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Affiliation(s)
- Chengqing Yang
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wan Ping Nan Road, Shanghai, 200030, China.
| | - Tianhong Zhang
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wan Ping Nan Road, Shanghai, 200030, China.
| | - Zezhi Li
- Department of Neurology, Renji Hospital, Shanghai Jiaotong University School of Medicine, 160 Pujian Road, Shanghai, 200127, China.
| | - Anisha Heeramun-Aubeeluck
- Department of Psychiatry, Tongji Hospital, Tongji University School of Medicine, 389 Xin Cun Road, Shanghai, 200065, China.
| | - Na Liu
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wan Ping Nan Road, Shanghai, 200030, China.
| | - Nan Huang
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wan Ping Nan Road, Shanghai, 200030, China.
| | - Jie Zhang
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wan Ping Nan Road, Shanghai, 200030, China.
| | - Leiying He
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wan Ping Nan Road, Shanghai, 200030, China.
| | - Hui Li
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wan Ping Nan Road, Shanghai, 200030, China.
| | - Yingying Tang
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wan Ping Nan Road, Shanghai, 200030, China.
| | - Fazhan Chen
- Department of Psychiatry, Tongji Hospital, Tongji University School of Medicine, 389 Xin Cun Road, Shanghai, 200065, China.
| | - Fei Liu
- Department of Psychiatry, Tongji Hospital, Tongji University School of Medicine, 389 Xin Cun Road, Shanghai, 200065, China.
| | - Jijun Wang
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wan Ping Nan Road, Shanghai, 200030, China.
| | - Zheng Lu
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wan Ping Nan Road, Shanghai, 200030, China. .,Department of Psychiatry, Tongji Hospital, Tongji University School of Medicine, 389 Xin Cun Road, Shanghai, 200065, China.
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14
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Uono S, Sato W, Toichi M. Exaggerated perception of facial expressions is increased in individuals with schizotypal traits. Sci Rep 2015; 5:11795. [PMID: 26135081 PMCID: PMC4488831 DOI: 10.1038/srep11795] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Accepted: 06/05/2015] [Indexed: 11/24/2022] Open
Abstract
Emotional facial expressions are indispensable communicative tools, and social interactions involving facial expressions are impaired in some psychiatric disorders. Recent studies revealed that the perception of dynamic facial expressions was exaggerated in normal participants, and this exaggerated perception is weakened in autism spectrum disorder (ASD). Based on the notion that ASD and schizophrenia spectrum disorder are at two extremes of the continuum with respect to social impairment, we hypothesized that schizophrenic characteristics would strengthen the exaggerated perception of dynamic facial expressions. To test this hypothesis, we investigated the relationship between the perception of facial expressions and schizotypal traits in a normal population. We presented dynamic and static facial expressions, and asked participants to change an emotional face display to match the perceived final image. The presence of schizotypal traits was positively correlated with the degree of exaggeration for dynamic, as well as static, facial expressions. Among its subscales, the paranoia trait was positively correlated with the exaggerated perception of facial expressions. These results suggest that schizotypal traits, specifically the tendency to over-attribute mental states to others, exaggerate the perception of emotional facial expressions.
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Affiliation(s)
- Shota Uono
- Department of Neurodevelopmental Psychiatry, Habilitation and Rehabilitation, Faculty of Human Health Science, Graduate School of Medicine, Kyoto University, 53 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Wataru Sato
- Department of Neurodevelopmental Psychiatry, Habilitation and Rehabilitation, Faculty of Human Health Science, Graduate School of Medicine, Kyoto University, 53 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Motomi Toichi
- Faculty of Human Health Science, Graduate School of Medicine, Kyoto University, 53 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan.,The Organization for Promoting Developmental Disorder Research, 40 Shogoin Sannou-cho, Sakyo-ku, Kyoto 606-8392, Japan
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15
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Weiss NH, Sullivan TP, Tull MT. Explicating the role of emotion dysregulation in risky behaviors: A review and synthesis of the literature with directions for future research and clinical practice. Curr Opin Psychol 2015; 3:22-29. [PMID: 25705711 DOI: 10.1016/j.copsyc.2015.01.013] [Citation(s) in RCA: 126] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Extant literature provides support for emotion dysregulation as a transdiagnostic construct with relevance to the pathogenesis and treatment of numerous psychiatric difficulties and maladaptive behaviors, including risky, self-destructive, and health-compromising behaviors (e.g., substance use, risky sexual behavior). The aim of the present review is to synthesize theory and empirical research on the relationship between emotion dysregulation and risky behaviors. In addition, we highlight cutting-edge approaches for investigating the emotion dysregulation-risky behavior, including examination of the role of positive emotional experiences and inclusion of context-dependent and physiological assessments. Finally, we note the relevance of the emotion dysregulation-risky behavior relation to intervention efforts aimed at reducing risky behaviors.
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Affiliation(s)
- Nicole H Weiss
- Yale University School of Medicine, Department of Psychiatry 389 Whitney Avenue, New Haven, CT, 06511
| | - Tami P Sullivan
- Yale University School of Medicine, Department of Psychiatry 389 Whitney Avenue, New Haven, CT, 06511
| | - Matthew T Tull
- University of Mississippi Medical Center, Department of Psychiatry 2500 North State Street, Jackson, MS, 39216
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16
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Yu J, Zaroff CM, Bernardo AB. The hypervigilant misperception of Duchenne smiles in schizotypy. PSYCHOSIS-PSYCHOLOGICAL SOCIAL AND INTEGRATIVE APPROACHES 2014. [DOI: 10.1080/17522439.2014.983960] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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Overlap between autistic and schizotypal personality traits is not accounted for by anxiety and depression. Psychiatry Res 2014; 219:380-5. [PMID: 24930576 DOI: 10.1016/j.psychres.2014.05.040] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 03/06/2014] [Accepted: 05/21/2014] [Indexed: 01/02/2023]
Abstract
Autism spectrum and schizophrenia spectrum disorders are classified separately in the DSM-5, yet research indicates that these two disorders share overlapping features. The aim of the present study was to examine the overlap between autistic and schizotypal personality traits and whether anxiety and depression act as confounding variables in this relationship within a non-clinical population. One hundred and forty-four adults completed the Autism Spectrum Quotient and the Schizotypal Personality Questionnaire and the Depression Anxiety Stress Scales-21. A number of associations were seen between autistic and schizotypal personality traits. However, negative traits were the only schizotypal feature to uniquely predict global autistic traits, thus highlighting the importance of interpersonal qualities in the overlap of autistic and schizotypal characteristics. The inclusion of anxiety and depression did not alter relationships between autistic and schizotypal traits, indicating that anxiety and depression are not confounders of this relationship. These findings have important implications for the conceptualisation of both disorders.
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18
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Abstract
The study of schizotypal personality disorder (SPD) is important clinically, as it is understudied, challenging to treat, often under-recognized or misdiagnosed, and associated with significant functional impairment. SPD also represents an intermediate schizophrenia-spectrum phenotype, and therefore, can provide a better understanding of the genetics, pathogenesis, and treatment of related psychotic illnesses. In this review we discuss recent findings of SPD related to epidemiology and functional impairment, heritability and genetics, working memory and cognitive impairments, social-affective disturbances, and neurobiology. Additionally, we examine the challenges associated with treating patients with SPD, as well as clinical recommendations. Finally, we address future directions and areas in need of further exploration.
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Affiliation(s)
- Daniel R. Rosell
- Icahn School of Medicine at Mount Sinai, New York, NY,James J. Peters Veterans Affairs Medical Center, Bronx, NY
| | - Shira E. Futterman
- Icahn School of Medicine at Mount Sinai, New York, NY,James J. Peters Veterans Affairs Medical Center, Bronx, NY
| | - Antonia McMaster
- Icahn School of Medicine at Mount Sinai, New York, NY,James J. Peters Veterans Affairs Medical Center, Bronx, NY
| | - Larry J. Siever
- Icahn School of Medicine at Mount Sinai, New York, NY,James J. Peters Veterans Affairs Medical Center, Bronx, NY
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