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Methods to Test Visual Attention Online
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Effect of Methylphenidate for Apathy on Visual Attention Scanning Behavior: a Pilot Study
Sarah A Chau1,2, Nathan Herrmann1,3, Jonathan Chung4,5
1Neuropsychopharmacology Research Group, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, ON, Canada.
Canadian Geriatrics Journal : CGJ
|July 7, 2018
Summary
Eye-tracking shows promise for monitoring Alzheimer's disease (AD) apathy symptoms. Improved attention to novel stimuli and less attention to social images correlated with reduced apathy after methylphenidate treatment.
Area of Science:
- Ophthalmology and Neuroscience
- Geriatric Medicine
- Psychiatry
Background:
- Alzheimer's disease (AD) frequently presents with apathy, impacting patient quality of life.
- Current methods for monitoring apathy symptoms and treatment efficacy in AD can be subjective.
- Methylphenidate (MTP) is being investigated for its potential to alleviate apathy in AD patients.
Purpose of the Study:
- To investigate the utility of eye-tracking technology as an objective tool for symptom monitoring in apathetic AD patients.
- To explore the relationship between eye-movement patterns and treatment outcomes in AD patients receiving methylphenidate (MTP).
- To assess the potential of eye-tracking to predict treatment response to MTP in Alzheimer's disease.
Main Methods:
- Pilot study involving nine apathetic Alzheimer's disease patients treated with methylphenidate (MTP).
- Eye-tracking measurements recorded during viewing of novel and social stimuli at baseline and after MTP treatment.
- Standardized Mini-Mental State Exam (sMMSE), Neuropsychiatric Inventory, and Apathy Evaluation Scale (AES) used for cognitive and apathy assessment.
Main Results:
- A significant correlation was found between improvement in apathy scores (AES) and increased visual attention to novel stimuli (ρ = -0.809, p = 0.008).
- Lower baseline attention towards social images was significantly associated with greater improvement in apathy scores (AES) (ρ = 0.905, p = 0.001).
- These findings suggest a link between visual attention patterns and apathy symptom reduction in AD patients treated with MTP.
Conclusions:
- Eye-tracking technology offers a potential objective and nonverbal method for monitoring apathy symptoms in Alzheimer's disease.
- Eye-movement analysis may serve as a valuable tool for predicting treatment outcomes in AD patients.
- Further research can develop eye-tracking into a clinical tool for managing AD symptoms and treatment response.
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