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Journal of Child Psychology and... Jul 2023Psychotic symptoms, including hallucinations, delusions, and disorganized thinking and behaviors, are the hallmarks of schizophrenia; but may also present in the context... (Review)
Review
Psychotic symptoms, including hallucinations, delusions, and disorganized thinking and behaviors, are the hallmarks of schizophrenia; but may also present in the context of other psychiatric and medical conditions. Many children and adolescents describe psychotic-like experiences, which can be associated with other types of psychopathology and past experiences (e.g., trauma, substance use, and suicidality). However, most youth reporting such experiences do not have, nor will ever develop, schizophrenia or another psychotic disorder. Accurate assessment is critical because these different presentations have different diagnostic and treatment implications. For this review, we focus primarily on the diagnosis and treatment of early onset schizophrenia. In addition, we review the development of community-based first-episode psychosis programming, and the importance of early intervention and coordinated care.
Topics: Adolescent; Child; Humans; Psychotic Disorders; Schizophrenia; Hallucinations; Suicidal Ideation; Psychopathology; Delusions
PubMed: 36878476
DOI: 10.1111/jcpp.13777 -
Neuroscience and Biobehavioral Reviews Jul 2023Despite decades of research, we do not definitively know how people sometimes see things that are not there. Eight models of complex visual hallucinations have been... (Review)
Review
Despite decades of research, we do not definitively know how people sometimes see things that are not there. Eight models of complex visual hallucinations have been published since 2000, including Deafferentation, Reality Monitoring, Perception and Attention Deficit, Activation, Input, and Modulation, Hodological, Attentional Networks, Active Inference, and Thalamocortical Dysrhythmia Default Mode Network Decoupling. Each was derived from different understandings of brain organisation. To reduce this variability, representatives from each research group agreed an integrated Visual Hallucination Framework that is consistent with current theories of veridical and hallucinatory vision. The Framework delineates cognitive systems relevant to hallucinations. It allows a systematic, consistent, investigation of relationships between the phenomenology of visual hallucinations and changes in underpinning cognitive structures. The episodic nature of hallucinations highlights separate factors associated with the onset, persistence, and end of specific hallucinations suggesting a complex relationship between state and trait markers of hallucination risk. In addition to a harmonised interpretation of existing evidence, the Framework highlights new avenues of research, and potentially, new approaches to treating distressing hallucinations.
Topics: Humans; Hallucinations; Brain; Attention Deficit Disorder with Hyperactivity
PubMed: 37141962
DOI: 10.1016/j.neubiorev.2023.105208 -
Neuroscience and Biobehavioral Reviews Sep 2023In recent decades, new virtual reality (VR)-based protocols have been proposed for the rehabilitation of Unilateral Spatial Neglect (USN), a debilitating disorder of... (Review)
Review
INTRODUCTION
In recent decades, new virtual reality (VR)-based protocols have been proposed for the rehabilitation of Unilateral Spatial Neglect (USN), a debilitating disorder of spatial awareness. However, it remains unclear which type of VR protocol and level of VR immersion can maximize the clinical benefits. To answer these questions, we conducted a systematic review of the use of VR for the rehabilitation of USN.
METHOD
Studies between 2000 and 2022 that met the inclusion criteria were classified according to their research design and degree of immersion (non-immersive, NIVR; semi-immersive, SIVR; immersive, IVR).
RESULTS
A total of 375 studies were identified, of which 26 met the inclusion criteria. Improvements were found in 84.6% of the reviewed studies: 85.7% used NIVR, 100% used SIVR and 55.6% used IVR. However, only 42.3% of them included a control group and only 19.2% were randomized control trials (RCT).
CONCLUSION
VR protocols may offer new opportunities for USN rehabilitation, although further RCTs are needed to validate their clinical efficacy.
Topics: Humans; Stroke; Stroke Rehabilitation; Perceptual Disorders; Treatment Outcome; Virtual Reality
PubMed: 37247829
DOI: 10.1016/j.neubiorev.2023.105248 -
Journal of Clinical Medicine Nov 2023Tinnitus is a perceptual disorder in which sound is perceived by the patient in the absence of an external or internal acoustic stimulation [...].
Tinnitus is a perceptual disorder in which sound is perceived by the patient in the absence of an external or internal acoustic stimulation [...].
PubMed: 38002689
DOI: 10.3390/jcm12227076