Phototest for neurocognitive screening in multiple sclerosis

Area of Science:

• Neurology
• Neuropsychology
• Cognitive Science

Background:

• Multiple Sclerosis (MS) is a common neurological disorder.
• Cognitive dysfunction is a key clinical feature in MS, affecting about half of patients.
• Early detection of cognitive impairment is crucial for timely intervention.

Purpose of the Study:

• To evaluate the Phototest (PT) as a neurocognitive screening tool for MS.
• To assess the diagnostic accuracy of the PT in detecting cognitive impairment in MS patients.

Main Methods:

• The study included 30 MS patients and 19 healthy controls.
• Participants underwent the Phototest (PT), Montreal Cognitive Assessment (MoCA), Barthel Index (BI), EDSS, and FSS.
• Statistical analysis compared PT performance between groups and with MoCA.

Main Results:

• MS patients scored significantly lower on most PT domains compared to controls.
• The PT demonstrated strong concurrent validity with the MoCA.
• The PT exhibited higher sensitivity and specificity than MoCA for MS-related cognitive impairment, with a cut-off of 31 yielding 100% sensitivity and 76.7% specificity.

Conclusions:

• The Phototest is a valid, sensitive, and specific screening tool for MS neurocognitive deficits.
• It is brief, cost-effective, and not influenced by motor function.
• The PT is a valuable option for identifying MS patients requiring further neuropsychological assessment and intervention.