当前位置： SCI文献检索 > Frontiers in Neurology期刊下所有文献 > A Touchscreen Motivation Assessment Evaluated in Huntington's Disease Patients and R6/1 Model Mice.

A Touchscreen Motivation Assessment Evaluated in Huntington's Disease Patients and R6/1 Model Mice.

Abstract：

:Apathy is pervasive across many neuropsychiatric disorders but is poorly characterized mechanistically, so targeted therapeutic interventions remain elusive. A key impediment has been the lack of validated assessment tools to facilitate translation of promising findings between preclinical disease models and patients. Apathy is a common symptom in Huntington's disease. Due to its established genetic basis and the availability of defined animal models, this disease offers a robust translational framework for linking motivated behavior with underlying neurobiology and an ideal context in which to evaluate a quantitative, translational apathy assessment method. In this study we therefore aimed to demonstrate the validity of using touchscreen-delivered progressive ratio tasks to mirror apathy assessment in Huntington's disease patients and a representative mouse model. To do this we evaluated Huntington's disease patients (n = 23) and age-matched healthy controls (n = 20), and male R6/1 mice (n = 23) and wildtype controls (n = 29) for apathy-like behavior using touchscreen-delivered progressive ratio tasks. The primary outcome measure of the assessment was breakpoint, defined as the highest number of touchscreen responses emitted before task engagement ceased. Patients and R6/1 mice were both found to exhibit significantly reduced breakpoints relative to their respective control groups, consistent with apathy-like behavior. This performance was also not associated with motoric differences in either species. These data demonstrate the utility of touchscreen-delivered progressive ratio tasks in detecting clinically relevant motivational deficits in Huntington's disease. This approach may offer a platform from which clinically relevant mechanistic insights concerning motivation symptoms can be derived and provide an effective route for translation of promising preclinical findings into viable therapeutic interventions.

journal_name

Front Neurol

journal_title

Frontiers in neurology

authors

Heath CJ,O'Callaghan C,Mason SL,Phillips BU,Saksida LM,Robbins TW,Barker RA,Bussey TJ,Sahakian BJ

doi

10.3389/fneur.2019.00858

subject

Has Abstract

pub_date

2019-08-09 00:00:00

pages

858

issn

1664-2295

journal_volume

pub_type

杂志文章

在线工具

A Touchscreen Motivation Assessment Evaluated in Huntington's Disease Patients and R6/1 Model Mice.