Related Experiment Video
Updated: Jul 31, 2026

05:52
Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis
Published on: November 21, 2013
Huntington's disease and its association with psychopathology
1Institute of Psychiatry, Second University of Naples, Italy.
Harvard Review of Psychiatry
|February 26, 2000
Summary
Huntington's disease (HD) patients show higher rates of psychosis, depression, and obsessive-compulsive disorder (OCD). Understanding these psychiatric links may help identify subtypes and improve HD management.
Area of Science:
- Neuroscience
- Psychiatry
- Genetics
Background:
- Huntington's disease (HD) is a neurodegenerative disorder.
- Psychiatric and psychopathological manifestations are common in HD patients.
- Obsessive-compulsive disorder (OCD) shares neuroanatomical and symptomatic similarities with HD.
Purpose of the Study:
- To review psychopathological manifestations in Huntington's disease.
- To analyze the prevalence and significance of psychosis, depression, and OCD in HD.
- To explore the potential of psychiatric profiling for distinguishing HD subtypes.
Main Methods:
- Literature review of studies on Huntington's disease and psychiatric comorbidities.
- Analysis of evidence for increased prevalence of psychosis, depression, and OCD in HD.
- Examination of neuroanatomical and symptomatic overlaps between HD and OCD.
Main Results:
- Individuals with HD or at risk exhibit a higher-than-average prevalence of psychosis, depression, and OCD.
- Recent findings indicate an excess of OCD within HD-affected families.
- Neuroanatomical and symptomatic similarities exist between HD and OCD.
Conclusions:
- Psychiatric status characterization in HD patients and families may help differentiate clinical subtypes.
- Identifying distinct subtypes of HD could lead to improved patient management strategies.
- Further research into the psychiatric aspects of HD is warranted.
Related Concept Videos
Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders
Schizophrenia is a neurodevelopmental disorder whose origins are rooted in complex genetic components. Despite our burgeoning understanding, the pathophysiology of this disorder remains incompletely deciphered.
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within the...
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within the...
Parkinson's Disease: Overview
Neurodegenerative disorders are progressive diseases that cause irreversible damage and loss to neurons in specific brain areas. Examples of these disorders include Parkinson's disease, Alzheimer's disease, Multiple Sclerosis (MS), and Amyotrophic Lateral Sclerosis (ALS). These disorders share characteristics such as proteinopathies, selective neuronal vulnerability, and a complex interplay between genetic and environmental factors. The primary therapeutic goal for these conditions is to...
Human Genetics
Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
The complex relationship between genetics and psychology is observable through common biological components such...
Parkinson Disease l: Introduction
Parkinson’s disease is a chronic, progressive neurodegenerative disorder that primarily affects movement. It is characterized by motor symptoms such as resting tremors, muscle rigidity, bradykinesia (slowness of movement), and postural instability. Patients may notice hand tremors at rest, stiffness during movement, or a shuffling gait. In addition to motor features, non-motor symptoms include sleep disturbances, mood and behavioral changes, constipation, and cognitive impairment, all of which...
Parkinson Disease ll: Pathophysiology
Parkinson disease (PD) is a progressive neurodegenerative disorder primarily affecting movement, with additional non-motor features. Its pathophysiology involves complex interactions among genetic susceptibility, environmental exposures, and cellular dysfunction, including dopaminergic neuron loss, protein aggregation, and mitochondrial impairment.Selective NeurodegenerationA key feature is the degeneration of dopaminergic neurons in the substantia nigra pars compacta, leading to reduced...
Huntington Disease l: Introduction
Huntington disease or HD is a progressive, fatal neurodegenerative disorder inherited in an autosomal dominant pattern.PathophysiologyIt is caused by expansion of the CAG trinucleotide repeat in the HTT gene on chromosome 4 (4p16.3), producing an abnormal huntingtin protein with an expanded polyglutamine tract. This misfolded protein disrupts cellular function, leading to neuronal death. Normal alleles have ≤26 repeats, 27–35 are intermediate (risk of expansion), 36–39 show reduced penetrance,...

