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Facial emotion recognition in schizotypy: The role of accuracy and social cognitive bias

Published online by Cambridge University Press:  19 March 2010

LAURA A. BROWN  and
ALEX S. COHEN
LAURA A. BROWN*
Affiliation:
Department of Psychology, Louisiana State University, Baton Rouge, Louisiana
ALEX S. COHEN
Affiliation:
Department of Psychology, Louisiana State University, Baton Rouge, Louisiana
*
*Correspondence and reprint requests to: Laura A. Brown, Department of Psychology, Louisiana State University, 236 Audubon Hall, Baton Rouge, Louisiana, 70803. E-mail: [email protected]
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Abstract

Facial emotion recognition deficits have been widely investigated in individuals with schizophrenia; however, it remains unclear whether these deficits reflect a trait-like vulnerability to schizophrenia pathology present in individuals at risk for the disorder. Although some studies have investigated emotion recognition in this population, findings have been mixed. The current study uses a well-validated emotion recognition task, a relatively large sample, and examines the relationship between emotion recognition, symptoms, and overall life quality. Eighty-nine individuals with psychometrically defined schizotypy and 27 controls completed the Schizotypal Personality Questionnaire, Penn Emotion Recognition Test, and a brief version of Lehman’s Quality of Life Interview. In addition to labeling facial emotions, participants rated the valence of faces using a Likert rating scale. Individuals with schizotypy were significantly less accurate than controls when labeling emotional faces, particularly neutral faces. Within the schizotypy sample, both disorganization symptoms and lower quality of life were associated with a bias toward perceiving facial expressions as more negative. Our results support previous research suggesting that poor emotion recognition is associated with vulnerability to psychosis. Although emotion recognition appears unrelated to symptoms, it probably operates by means of different processes in those with particular types of symptoms. (JINS, 2010, 16, 474–483.)

Keywords

SchizophreniaVulnerabilityPERTSPQQuality of lifeSocial perception
Type
Research Articles
Information
Journal of the International Neuropsychological Society , Volume 16 , Issue 3 , May 2010 , pp. 474 - 483
Copyright
Copyright © The International Neuropsychological Society 2010

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References

REFERENCES

Addington, J., & Addington, D. (1998). Facial affect recognition and information processing in schizophrenia and bipolar disorder. Schizophrenia Research, 32, 171–181.CrossRefGoogle ScholarPubMed
Addington, J., Penn, D., Woods, S., Addington, D., & Perkins, D. (2008). Facial affect recognition in individuals at clinical high risk for psychosis. British Journal of Psychiatry, 192, 67–68.CrossRefGoogle ScholarPubMed
Addington, J., Saeedi, H., & Addington, D. (2006). Facial affect recognition: A mediator between cognitive and social functioning in psychosis? Schizophrenia Research, 85, 142–150.CrossRefGoogle ScholarPubMed
American Psychiatric Association. (2000). Diagnostic and statistical manual of mental disorders (4th ed.). Washington, DC: American Psychiatric Association.Google Scholar
Anderson, A., McNeil, D., & Reddon, J. (2002). Evaluation of Lehman’s brief quality of life interview in assessing outcome in psychiatric rehabilitation in people with severe and persistent mental disorder. Social Work in Mental Health, 25, 43–59.CrossRefGoogle Scholar
Angermeyer, M., Holzinger, A., Matschinger, H., & Stenger-Wenzke, K. (2002). Depression and quality of life: Results of a follow-up study. International Journal of Social Psychiatry, 48, 189–199.CrossRefGoogle ScholarPubMed
Archer, J., Hay, D., & Young, A. (1994). Movement, face processing, and schizophrenia: Evidence of a differential deficit in expression analysis British Journal of Clinical Psychology, 33, 517–528.CrossRefGoogle ScholarPubMed
Barrantes-Vidal, N., Fananas, L., Rosa, A., Caparros, B., Riba, M.D., & Obiols, J.E. (2002). Neurocognitive, behavioral, and neurodevelopmental correlates of schizotypy clusters in adolescents from the general population. Schizophrenia Research, 61, 293–302.CrossRefGoogle Scholar
Bediou, B., Franck, N., Saoud, M., Baudouin, J., Tiberghien, G., Daléry, J., et al. . (2005). Effects of emotion and identity on facial affect processing in schizophrenia. Psychiatry Research, 133, 149–157.CrossRefGoogle ScholarPubMed
Bellack, A., Bennett, M., Gearon, J., Brown, C., & Yang, Y. (2006). A randomized clinical trial of a new behavioral treatment for drug abuse in people with severe and persistent mental illness. Archives of General Psychiatry, 63, 426–432.CrossRefGoogle ScholarPubMed
Bentall, R., Corcoran, R., Howard, R., Blackwood, N., & Kinderman, P. (2001). Persecutory delusions: A review and theoretical integration. Clinical Psychology Review, 21, 1143–1192.CrossRefGoogle ScholarPubMed
Bergida, H., & Lenzenweger, M.F. (2006). Schizotypy and sustained attention: Confirming evidence from an adult community sample. Journal of Abnormal Psychology, 115, 545–551.CrossRefGoogle ScholarPubMed
Brekke, J.S., Nakagami, E., Kee, K.S., & Green, M.F. (2005). Cross-ethnic differences in perception of emotion in schizophrenia. Schizophrenia Research, 77, 289–298.CrossRefGoogle ScholarPubMed
Buchsbaum, M., Nenadic, I., Hazlett, E., Spiegal-Cohen, J., Fleischman, M., Akhavan, A., et al. . (2002). Differential metabolic rates in prefrontal and temporal Brodmann areas in schizophrenia and schizotypal personality disorder. Schizophrenia Research, 54, 141–150.CrossRefGoogle ScholarPubMed
Calkins, M.E., Dobie, D.J., Cadenhead, K.S., Freedman, R., Greenwood, T. A., Gur, R.C., et al. . (2007). The consortium on the genetics of endophenotypes in schizophrenia: Model recruitment, assessment, and endophenotyping methods for a multisite collaboration. Schizophrenia Bulletin, 33, 33–48.CrossRefGoogle Scholar
Chapman, J., Chapman, L., & Kwapil, T. (1995). Scales for the measurement of schizotypy. Schizotypal personality (pp. 79–106). New York, NY: Cambridge University Press.CrossRefGoogle Scholar
Chen, W., Hsiao, C., & Lin, C. (1997). Schizotypy in community samples: The three-factor structure and correlation with sustained attention. Journal of Abnormal Psychology, 106, 649–654.CrossRefGoogle ScholarPubMed
Cohen, A.S., & Davis, T.E. III. (2009). Quality of life across the schizotypy spectrum: Findings from a large healthy adult sample. Comprehensive Psychiatry, 50, 408–414.CrossRefGoogle Scholar
Cohen, A.S., & Hong, S.L. (In Press). Understanding constricted affect in schizotypy through computerized prosodic analysis. Journal of Personality Disorders.Google Scholar
Cohen, A.S., Iglesias, B., & Minor, K.S. (2009). The neurocognitive underpinnings of diminished expressivity in schizotypy: What the voice reveals. Schizophrenia Research, 109, 38–45.CrossRefGoogle ScholarPubMed
Cohen, A.S., Nienow, T.M., Dinzeo, T.J., & Docherty, N.M. (2009). Attribution biases in schizophrenia: Relationship to clinical and functional impairments. Psychopathology, 42, 40–46.CrossRefGoogle ScholarPubMed
Csukly, G., Czobor, P., Szily, E., Takács, B., & Simon, L. (2009). Facial expression recognition in depressed subjects: The impact of intensity level and arousal dimension. Journal of Nervous and Mental Disease, 197, 98–103.CrossRefGoogle ScholarPubMed
da Silva Lima, A., & de Almeida Fleck, M. (2007). Subsyndromal depression: An impact on quality of life? Journal of Affective Disorders, 100, 163–169.CrossRefGoogle ScholarPubMed
Davis, P., & Gibson, M. (2000). Recognition of posed and genuine facial expressions of emotion in paranoid and nonparanoid schizophrenia. Journal of Abnormal Psychology, 109, 445–450.CrossRefGoogle ScholarPubMed
Derntl, B., Habel, U., Windischberger, C., Robinson, S., Kryspin-Exner, I., Gur, R., et al. . (2009). General and specific responsiveness of the amygdala during explicit emotion recognition in females and males. BMC Neuroscience, 10, 1–14.CrossRefGoogle ScholarPubMed
Diforio, D., Walker, E., & Kestler, L. (2000). Executive functions in adolescents with schizotypal personality disorder. Schizophrenia Research, 42, 125–134.CrossRefGoogle ScholarPubMed
Dougherty, F., Bartlett, E., & Izard, C. (1974). Responses of schizophrenics to expressions of the fundamental emotions. Journal of Clinical Psychology, 30, 243–246.3.0.CO;2-0>CrossRefGoogle ScholarPubMed
Fakra, E., Salgado-Pineda, P., Delaveau, P., Hariri, A., & Blin, O. (2008). Neural bases of different cognitive strategies for facial affect processing in schizophrenia. Schizophrenia Research, 100, 191–205.CrossRefGoogle ScholarPubMed
Feinberg, T., Rifkin, A., Schaffer, C., & Walker, E. (1986). Facial discrimination and emotional recognition in schizophrenia and affective disorders. Archives of General Psychiatry, 43, 276–279.CrossRefGoogle ScholarPubMed
Fonseca-Pedrero, E., Lemos-Giráldez, S., Muñiz, J., García-Cueto, E., & Campillo-Álvarez, Á. (2008). Schizotypy in adolescence: The role of gender and age. Journal of Nervous and Mental Disease, 196, 161–165.CrossRefGoogle ScholarPubMed
Goldney, R., Fisher, L., Dal Grande, E., & Taylor, A. (2004). Subsyndromal depression: Prevalence, use of health services and quality of life in an Australian population. Social Psychiatry and Psychiatric Epidemiology, 39, 293–298.CrossRefGoogle Scholar
Goldney, R., Fisher, L., Wilson, D., & Cheok, F. (2000). Major depression and its associated morbidity and quality of life in a random, representative Australian community sample. Australian and New Zealand Journal of Psychiatry, 34, 1022–1029.CrossRefGoogle Scholar
Gooding, D., Kwapil, T., & Tallent, K. (1999). Wisconsin Card Sorting Test deficits in schizotypic individuals. Schizophrenia Research, 40, 201–209.CrossRefGoogle ScholarPubMed
Gooding, D., Luh, K., & Tallent, K. (2001). Evidence of schizophrenia patients’ reduced perceptual biases in response to emotion chimera. Schizophrenia Bulletin, 27, 709–716.CrossRefGoogle ScholarPubMed
Gooding, D., Miller, M., & Kwapil, T. (2000). Smooth pursuit eye tracking and visual fixation in psychosis-prone individuals. Psychiatry Research, 93, 41–54.CrossRefGoogle ScholarPubMed
Gooding, D., & Tallent, K. (2002). Schizophrenia patients’ perceptual biases in response to positively and negatively valenced emotion chimeras. Psychological Medicine, 32, 1101–1107.CrossRefGoogle ScholarPubMed
Gooding, D., Tallent, K., & Matts, C. (2005). Clinical status of at-risk individuals 5 years later: Further validation of the psychometric high-risk strategy. Journal of Abnormal Psychology, 114, 170–175.CrossRefGoogle ScholarPubMed
Green, M., Williams, L., & Davidson, D. (2001). Processing of threat-related affect is delayed in delusion-prone individuals. British Journal of Clinical Psychology, 40, 157–165.CrossRefGoogle ScholarPubMed
Gruzelier, J.H. (1994). Syndromes of schizophrenia and schizotypy, hemispheric imbalance and sex differences: Implications for developmental psychopathology. International Journal of Psychophysiology 18, 167–178.CrossRefGoogle ScholarPubMed
Gur, R.C., Sara, R., Hagendoorn, M., Marom, O., Hughett, P., Macy, L., et al. . (2002). A method for obtaining 3-dimensional facial expressions and its standardization for use in neurocognitive studies. Journal of Neuroscience Methods, 115, 137–143.CrossRefGoogle ScholarPubMed
Gur, R., Kohler, C., Ragland, J., Siegel, S., Bilker, W., Loughead, J., et al. . (2003). Neurocognitive performance and clinical changes in olanzapine-treated patients with schizophrenia. Neuropsychopharmacology, 28, 2029–2036.CrossRefGoogle ScholarPubMed
Heider, D., Angermeyer, M., Winkler, I., Schomerus, G., Bebbington, P., Brugha, T., et al. . (2007). A prospective study of quality of life in schizophrenia in three European countries. Schizophrenia Research, 93, 194–202.CrossRefGoogle ScholarPubMed
Herbener, E., Hill, S., Marvin, R., & Sweeney, J. (2005). Effects of antipsychotic treatment on emotion perception deficits in first-episode schizophrenia. American Journal of Psychiatry, 162, 1746–1748.CrossRefGoogle ScholarPubMed
Hooker, C., & Park, S. (2002). Emotion processing and its relationship to social functioning in schizophrenia patients. Psychiatry Research, 112, 41–50.CrossRefGoogle ScholarPubMed
Horan, W., Brown, S., & Blanchard, J. (2007). Social anhedonia and schizotypy: The contribution of individual differences in affective traits, stress, and coping. Psychiatry Research, 149, 147–156.CrossRefGoogle ScholarPubMed
Huppert, J., Weiss, K., Lim, R., Pratt, S., & Smith, T. (2001). Quality of life in schizophrenia: Contributions of anxiety and depression. Schizophrenia Research, 51, 171–180.CrossRefGoogle ScholarPubMed
Jahshan, C., & Sergi, M. (2007). Theory of mind, neurocognition, and functional status in schizotypy. Schizophrenia Research, 89, 278–286.CrossRefGoogle ScholarPubMed
Johnston, P., Katsikitis, M., & Carr, V. (2001). A generalised deficit can account for problems in facial emotion recognition in schizophrenia. Biological Psychology, 58, 203–227.CrossRefGoogle ScholarPubMed
Kee, K., Horan, W., Mintz, J., & Green, M. (2004). Do the siblings of schizophrenia patients demonstrate affect perception deficits? Schizophrenia Research, 67, 87–94.CrossRefGoogle ScholarPubMed
Kendler, K., Ochs, A., Gorman, A., & Hewitt, J. (1991). The structure of schizotypy: A pilot multitrait twin study. Psychiatry Research, 36, 19–36.CrossRefGoogle ScholarPubMed
Kendler, K., Thacker, L., & Walsh, D. (1996). Self-report measures of schizotypy as indices of familial vulnerability to schizophrenia. Schizophrenia Bulletin, 22, 511–520.CrossRefGoogle ScholarPubMed
Kerr, S., & Neale, J. (1993). Emotion perception in schizophrenia: Specific deficit or further evidence of generalized poor performance? Journal of Abnormal Psychology, 102, 312–318.CrossRefGoogle ScholarPubMed
Kimble, M., Lyons, M., O’Donnell, B., Nestor, P., Niznikiewicz, M., & Toomey, R. (2000). The effect of family status and schizotypy on electrophysiologic measures of attention and semantic processing. Biological Psychiatry, 47, 402–412.CrossRefGoogle ScholarPubMed
Kohler, C., Turner, T., Bilker, W., Brensinger, C., Siegel, S., Kanes, S., et al. . (2003). Facial emotion recognition in schizophrenia: Intensity effects and error pattern. American Journal of Psychiatry, 160, 1768–1774.CrossRefGoogle ScholarPubMed
Korfine, L., & Lenzenweger, M. (1995). The taxonicity of schizotypy: A replication. Journal of Abnormal Psychology, 104, 26–31.CrossRefGoogle ScholarPubMed
Kucharska-Pietura, K., David, A., Masiak, M., & Phillips, M. (2005). Perception of facial and vocal affect by people with schizophrenia in early and late stages of illness. British Journal of Psychiatry, 187, 523–528.CrossRefGoogle ScholarPubMed
Kwapil, T. (1998). Social anhedonia as a predictor of the development of schizophrenia-spectrum disorders. Journal of Abnormal Psychology, 107, 558–565.CrossRefGoogle ScholarPubMed
Kwapil, T., Barrantes-Vidal, N., & Silvia, P. (2008). The dimensional structure of the Wisconsin Schizotypy Scales: Factor identification and construct validity. Schizophrenia Bulletin, 34, 444–457.CrossRefGoogle ScholarPubMed
Lang, P.J., Bradley, M.M., & Cuthbert, B.N. (2005). International affective picture system (IAPS): Affective ratings of pictures and instruction manual. Technical Report A-6. Gainesville, FL: University of Florida.Google Scholar
Langenecker, S., Bieliauskas, L., Rapport, L., Zubieta, J., Wilde, E., & Berent, S. (2005). Face emotion perception and executive functioning deficits in depression. Journal of Clinical and Experimental Neuropsychology, 27, 320–333.CrossRefGoogle ScholarPubMed
Larøi, F., D’Argembeau, A., Brédart, S., & van der Linden, M. (2007). Face recognition failures in schizotypy. Cognitive Neuropsychiatry, 12, 554–571.CrossRefGoogle ScholarPubMed
Lehman, A. (1995). Evaluating quality of life for persons with severe mental illness: Assessment toolkit. Cambridge, MA: The Evaluation Center at Health Services Research Institute.Google Scholar
Lehman, A. (1996). Measures of quality of life among persons with severe and persistent mental disorders. Social Psychiatry and Psychiatric Epidemiology, 31, 78–88.CrossRefGoogle ScholarPubMed
Lenzenweger, M. (1994). Psychometric high-risk paradigm, perceptual aberrations, and schizotypy: An update. Schizophrenia Bulletin, 20, 121–135.CrossRefGoogle ScholarPubMed
Lenzenweger, M., Cornblatt, B., & Putnick, M. (1991). Schizotypy and sustained attention. Journal of Abnormal Psychology, 100, 84–89.CrossRefGoogle ScholarPubMed
Lenzenweger, M., & Korfine, L. (1992). Identifying schizophrenia-related personality disorder features in a nonclinical population using a psychometric approach. Journal of Personality Disorders, 6, 256–266.CrossRefGoogle Scholar
Lenzenweger, M., & Korfine, L. (1994). Perceptual aberrations, schizotypy, and the Wisconsin Card Sorting Test. Schizophrenia Bulletin, 20, 345–357.CrossRefGoogle ScholarPubMed
Leppänen, J., Niehaus, D., Koen, L., Du Toit, E., Schoeman, R., & Emsley, R. (2008). Deficits in facial affect recognition in unaffected siblings of Xhosa schizophrenia patients: Evidence for a neurocognitive endophenotype. Schizophrenia Research, 99, 270–273.CrossRefGoogle ScholarPubMed
Lewandowski, K., Barrantes-Vidal, N., Nelson-Gray, R., Clancy, C., Kepley, H., & Kwapil, T. (2006). Anxiety and depression symptoms in psychometrically identified schizotypy. Schizophrenia Research, 83, 225–235.CrossRefGoogle ScholarPubMed
Miller, L.S., & Burns, S.A. (1995). Gender differences in schizotypic features in a large sample of young adults. Journal of Nervous and Mental Disease, 183, 657–661.CrossRefGoogle Scholar
Meehl, P. (1990). Toward an integrated theory of schizotaxia, schizotypy, and schizophrenia. Journal of Personality Disorders, 4, 1–99.CrossRefGoogle Scholar
Meehl, P.E. (1962). Schizotaxia, Schizotypy, and Schizophrenia. American Psychologist, 17, 827–838.CrossRefGoogle Scholar
Minor, K.S., & Cohen, A.S. (2010). Affective reactivity of speech disturbances in schizotypy. Journal of Psychiatric Research, 44, 99–105.CrossRefGoogle ScholarPubMed
Mohanty, A., Herrington, J.D., Koven, N.S., Fisher, J.E., Wenzel, E.A., Webb, A.G., et al. . (2005). Neural mechanisms of affective interference in schizotypy. Journal of Abnormal Psychology, 114, 16–27.CrossRefGoogle ScholarPubMed
Mueser, K., Doonan, R., Penn, D., Blanchard, J., Bellack, A., Nishith, P., et al. . (1996). Emotion recognition and social competence in chronic schizophrenia. Journal of Abnormal Psychology, 105, 271–275.CrossRefGoogle ScholarPubMed
Muzekari, L., & Bates, M. (1977). Judgment of emotion among chronic schizophrenics. Journal of Clinical Psychology, 33, 662–666.3.0.CO;2-A>CrossRefGoogle ScholarPubMed
Neumann, C., & Walker, E. (2003). Neuromotor functioning in adolescents with schizotypal personality disorder: Associations with symptoms and neurocognition. Schizophrenia Bulletin, 29, 285–298.CrossRefGoogle ScholarPubMed
O’Driscoll, G., Lenzenweger, M., & Holzman, P. (1998). Antisaccades and smooth pursuit eye tracking and schizotypy. Archives of General Psychiatry, 55, 837–843.CrossRefGoogle ScholarPubMed
Park, S., Holzman, P., & Lenzenweger, M. (1995). Individual differences in spatial working memory in relation to schizotypy. Journal of Abnormal Psychology, 104, 355–363.CrossRefGoogle ScholarPubMed
Penn, D., Corrigan, P., Bentall, R., Racenstein, J., & Newman, L. (1997). Social cognition in schizophrenia. Psychological Bulletin, 121, 114–132.CrossRefGoogle ScholarPubMed
Penn, D., Sanna, L., & Roberts, D. (2008). Social cognition in schizophrenia: An overview. Schizophrenia Bulletin, 34, 408–411.CrossRefGoogle ScholarPubMed
Phillips, M., Williams, L., Senior, C., Bullmore, E., Brammer, M., Andrew, C., et al. . (1999). A differential neural response to threatening and non-threatening negative facial expressions in paranoid and non-paranoid schizophrenics. Psychiatry Research: Neuroimaging, 92, 11–31.CrossRefGoogle ScholarPubMed
Pinkham, A., Penn, D., Perkins, D., Graham, K., & Siegel, M. (2007). Emotion perception and social skill over the course of psychosis: A comparison of individuals ‘at-risk’ for psychosis and individuals with early and chronic schizophrenia spectrum illness. Cognitive Neuropsychiatry, 12, 198–212.CrossRefGoogle ScholarPubMed
Pinkham, A., Penn, D., Perkins, D., & Lieberman, J. (2003). Implications for the neural basis of social cognition for the study of schizophrenia. The American Journal of Psychiatry, 160, 815–824.CrossRefGoogle Scholar
Pinkham, A., Sasson, N., Calkins, M., Richard, J., Hughett, P., Gur, R., et al. . (2008). The other-race effect in face processing among African American and Caucasian individuals with schizophrenia. The American Journal of Psychiatry, 165, 639–645.CrossRefGoogle ScholarPubMed
Premkumar, P., Cooke, M., Fannon, D., Peters, E., Michel, T., Aasen, I., et al. . (2008). Misattribution bias of threat-related facial expressions is related to a longer duration of illness and poor executive function in schizophrenia and schizoaffective disorder. European Psychiatry, 23, 14–19.CrossRefGoogle ScholarPubMed
Poreh, A., Whitman, R., Weber, M., & Ross, T. (1994). Facial recognition in hypothetically schizotypic college students: The role of generalized poor performance. Journal of Nervous and Mental Disease, 182, 503–507.CrossRefGoogle ScholarPubMed
Pyne, J., Patterson, T., Kaplan, R., Gillin, J., Koch, W., & Grant, I. (1997). Assessment of the quality of life of patients with major depression. Psychiatric Services, 48, 224–230.Google ScholarPubMed
Quirk, S., Subramanian, L., & Hoerger, M. (2007). Effects of situational demand upon social enjoyment and preference in schizotypy. Journal of Abnormal Psychology, 116, 624–631.CrossRefGoogle ScholarPubMed
Raine, A. (1991). The SPQ: A scale for the assessment of schizotypal personality based on DSM-III-R criteria. Schizophrenia Bulletin, 17, 555–564.CrossRefGoogle ScholarPubMed
Raine, A., Reynolds, C., Lencz, T., & Scerbo, A. (1994). Cognitive-perceptual, interpersonal, and disorganized features of schizotypal personality. Schizophrenia Bulletin, 20, 191–201.CrossRefGoogle ScholarPubMed
Reine, G., Lançon, C., Tucci, S., Sapin, C., & Auquier, P. (2003). Depression and subjective quality of life in chronic phase schizophrenic patients. Acta Psychiatrica Scandinavica, 108, 297–303.CrossRefGoogle ScholarPubMed
Reynolds, C., Raine, A., Mellingen, K., Venables, P., & Mednick, S. (2000). Three-factor model of schizotypal personality: Invariance across culture, gender, religious affiliation, family adversity, and psychopathology. Schizophrenia Bulletin, 269, 603–618.CrossRefGoogle Scholar
Smári, J., Stefánsson, S., & Thorgilsson, H. (1994). Paranoia, self-consciousness, and social cognition in schizophrenics. Cognitive Therapy and Research, 18, 387–399.CrossRefGoogle Scholar
Taylor, S., Liberzon, I., Decker, L., & Koeppe, R. (2002). A functional anatomic study of emotion in schizophrenia. Schizophrenia Research, 58, 159–172.CrossRefGoogle ScholarPubMed
Taylor, S., Phan, K., Britton, J., & Liberzon, I. (2005). Neural response to emotional salience in schizophrenia. Neuropsychopharmacology, 30, 984–995.CrossRefGoogle ScholarPubMed
Toomey, R., & Schuldberg, D. (1995). Recognition and judgment of facial stimuli in schizotypal subjects. Journal of Communication Disorders, 28, 193–203.CrossRefGoogle ScholarPubMed
Toomey, R., Seidman, L., Lyons, M., Faraone, S., & Tsuang, M. (1999). Poor perception of nonverbal social-emotional cues in relatives of schizophrenic patients. Schizophrenia Research, 40, 121–130.CrossRefGoogle ScholarPubMed
Tsoi, D., Lee, K., Khokhar, W., Mir, N., Swalli, J., Gee, K., et al. . (2008). Is facial emotion recognition impairment in schizophrenia identical for different emotions? A signal detection analysis. Schizophrenia Research, 99, 263–269.CrossRefGoogle ScholarPubMed
Tyrka, A., Cannon, T., Haslam, N., Mednick, S., Schulsinger, F., Schulsinger, H., et al. . (1995). The latent structure of schizotypy: I. Premorbid indicators of a taxon of individuals at risk for schizophrenia-spectrum disorders. Journal of Abnormal Psychology, 104, 173–183.CrossRefGoogle ScholarPubMed
Venables, P.H., & Bailes, K. (1994). The structure of schizotypy, its relation to subdiagnoses of schizophrenia and to sex and age. British Journal of Clinical Psychology, 33, 277–294.CrossRefGoogle ScholarPubMed
Wasserman, D., Sorensen, J., Delucchi, K., Masson, C., & Hall, S. (2006). Psychometric evaluation of the quality of life interview, brief version, in injection drug users. Psychology of Addictive Behaviors, 20, 316–321.CrossRefGoogle ScholarPubMed
Weiss, E., Kohler, C., Brensinger, C., Bilker, W., Loughead, J., Delazer, M., et al. . (2007). Gender differences in facial emotion recognition in persons with chronic schizophrenia. European Psychiatry, 22, 116–122.CrossRefGoogle ScholarPubMed
Williams, B., Henry, J., & Green, M. (2007). Facial affect recognition and schizotypy. Early Intervention in Psychiatry, 1, 177–182.CrossRefGoogle Scholar
Wölwer, W., Streit, M., Polzer, U., & Gaebel, W. (1996). Facial affect recognition in the course of schizophrenia. European Archives of Psychiatry and Clinical Neuroscience, 246, 165–170.CrossRefGoogle ScholarPubMed
Wout, M., Aleman, A., Kessels, R., Laroi, F., & Kahn, R. (2004). Emotional processing in a non clinical psychosis-prone sample. Schizophrenia Research, 68, 271–281.Google Scholar
Wuthrich, V., & Bates, T. (2005). Reliability and validity of two Likert versions of the Schizotypal Personality Questionnaire (SPQ). Personality and Individual Differences, 38, 1543–1548.CrossRefGoogle Scholar