Voice identity discrimination in schizophrenia

Chhabra, Saruchi; Badcock, Johanna C.; Maybery, Murray T.; Leung, Doris

doi:10.1016/j.neuropsychologia.2012.08.006

Cited by 30 publications

(54 citation statements)

References 34 publications

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“…For example, hallucinating individuals without need for care and nonhallucinating controls process various acoustic dimensions of voices similarly, whereas hallucinators with need for care rely less on certain acoustic features. 33,34 On the other hand, increased tone detection threshold has also been shown in individuals with AVH without need for care, 35 suggesting similarity with clinical groups in very basic auditory functions. Furthermore, cognitive dysfunction is a frequent symptom of patients with psychotic disorders, especially those with a diagnosis of schizophrenia.…”

Section: What Are the Similarities And Differences In The Avh Reportementioning

confidence: 98%

Auditory Verbal Hallucinations in Persons With and Without a Need for Care

Johns

Kompus

Connell

et al. 2014

Schizophrenia Bulletin

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264

248

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Auditory verbal hallucinations (AVH) are complex experiences that occur in the context of various clinical disorders. AVH also occur in individuals from the general population who have no identifiable psychiatric or neurological diagnoses. This article reviews research on AVH in nonclinical individuals and provides a cross-disciplinary view of the clinical relevance of these experiences in defining the risk of mental illness and need for care. Prevalence rates of AVH vary according to measurement tool and indicate a continuum of experience in the general population. Cross-sectional comparisons of individuals with AVH with and without need for care reveal similarities in phenomenology and some underlying mechanisms but also highlight key differences in emotional valence of AVH, appraisals, and behavioral response. Longitudinal studies suggest that AVH are an antecedent of clinical disorders when combined with negative emotional states, specific cognitive difficulties and poor coping, plus family history of psychosis, and environmental exposures such as childhood adversity. However, their predictive value for specific psychiatric disorders is not entirely clear. The theoretical and clinical implications of the reviewed findings are discussed, together with directions for future research.

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Section: What Are the Similarities And Differences In The Avh Reportementioning

confidence: 98%

Auditory Verbal Hallucinations in Persons With and Without a Need for Care

Johns

Kompus

Connell

et al. 2014

Schizophrenia Bulletin

Self Cite

264

248

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“…23 Indeed, current models of human voice perception are proving fruitful in guiding our understanding of AHs. 24,25 …”

Section: What Is It Like To Hear Voices?mentioning

confidence: 99%

Studying Hallucinations Within the NIMH RDoC Framework

Ford

Morris

Hoffman

et al. 2014

Schizophrenia Bulletin

127

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We explore how hallucinations might be studied within the National Institute of Mental Health (NIMH) Research Domain Criteria (RDoC) framework, which asks investigators to step back from diagnoses based on symptoms and focus on basic dimensions of functioning. We start with a description of the objectives of the RDoC project and its domains and constructs. Because the RDoC initiative asks investigators to study phenomena across the wellness spectrum and different diagnoses, we address whether hallucinations experienced in nonclinical populations are the same as those experienced by people with psychotic diagnoses, and whether hallucinations studied in one clinical group can inform our understanding of the same phenomenon in another. We then discuss the phenomenology of hallucinations and how different RDoC domains might be relevant to their study. We end with a discussion of various challenges and potential next steps to advance the application of the RDoC approach to this area of research.

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“…But the small sample sizes in this study ( N = 13 per group) tempers these conclusions, and leaves open the possibility that alterations in functional connectivity of the auditory ventral pathway occur in TI as well as AVH (Alba-Ferrara et al 2012; Chhabra et al 2012a). Another possibility is that impaired precision of encoding of basic acoustic cues (Chhabra et al 2012b; 2014; see also: Javitt 2009) generates prediction error signals that propagate to increasingly higher levels of the ventral processing stream.…”

Section: An Auditory Processing Stream Frameworkmentioning

confidence: 99%

A Neuropsychological Approach to Auditory Verbal Hallucinations and Thought Insertion - Grounded in Normal Voice Perception

Badcock

2015

Rev.Phil.Psych.

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A neuropsychological perspective on auditory verbal hallucinations (AVH) links key phenomenological features of the experience, such as voice location and identity, to functionally separable pathways in normal human audition. Although this auditory processing stream (APS) framework has proven valuable for integrating research on phenomenology with cognitive and neural accounts of hallucinatory experiences, it has not yet been applied to other symptoms presumed to be closely related to AVH – such as thought insertion (TI). In this paper, I propose that an APS framework offers a useful way of thinking about the experience of TI as well as AVH, providing a common conceptual framework for both. I argue that previous self-monitoring theories struggle to account for both the differences and similarities in the characteristic features of AVH and TI, which can be readily accommodated within an APS framework. Furthermore, the APS framework can be integrated with predictive processing accounts of psychotic symptoms; makes predictions about potential sites of prediction error signals; and may offer a template for understanding a range of other symptoms beyond AVH and TI.Electronic supplementary materialThe online version of this article (doi:10.1007/s13164-015-0270-3) contains supplementary material, which is available to authorized users.

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Voice identity discrimination in schizophrenia

Cited by 30 publications

References 34 publications

Auditory Verbal Hallucinations in Persons With and Without a Need for Care

Auditory Verbal Hallucinations in Persons With and Without a Need for Care

Studying Hallucinations Within the NIMH RDoC Framework

A Neuropsychological Approach to Auditory Verbal Hallucinations and Thought Insertion - Grounded in Normal Voice Perception

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