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Updated: Jul 31, 2025

Eye-Tracking Control to Assess Cognitive Functions in Patients with Amyotrophic Lateral Sclerosis

Eye-Tracking Control to Assess Cognitive Functions in Patients with Amyotrophic Lateral Sclerosis

Published on: October 13, 2016

Memory-guided navigation in amyotrophic lateral sclerosis.

Patrizia M Maier^1,2, Deetje Iggena^1,2, Thomas Meyer¹

¹Department of Neurology, Charité - Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany.

Journal of Neurology

|May 8, 2023

Summary

This summary is machine-generated.

This study found no evidence of hippocampal dysfunction in non-demented ALS patients using spatial navigation tasks. These findings suggest ALS cognitive variations may stem from distinct disease subtypes.

Keywords:

Amyotrophic lateral sclerosis Hippocampus Motor neuron disease Navigation Spatial memory

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Area of Science:

Neuroscience
Cognitive Science
Neurology

Background:

Amyotrophic lateral sclerosis (ALS) patient studies show inconsistent results regarding hippocampal involvement.
Hippocampal dysfunction may manifest in memory-dependent behaviors.
Spatial navigation is a hippocampus-dependent behavior.

Purpose of the Study:

To investigate potential hippocampal dysfunction in non-demented ALS patients.
To assess memory-guided spatial navigation abilities in ALS patients.
To explore behavioral correlates of hippocampal function in ALS.

Main Methods:

A prospective study compared 43 non-demented ALS outpatients with 43 healthy controls.
A virtual "starmaze" task assessed memory-guided navigation.
Neuropsychological tests evaluated visuospatial memory, fluency, and orientation.

Main Results:

ALS patients successfully navigated the starmaze, showing no significant differences from controls.
Navigational efficacy measures (latency, path error, uncertainty) did not differ between groups.
No significant differences were found in visuospatial memory, fluency, or orientation tests.

Conclusions:

No behavioral evidence of hippocampal dysfunction was found in non-demented ALS patients.
Cognitive variations in ALS may be linked to distinct disease subtypes.
This study does not support a universal cognitive phenotype in ALS.