moca_cognitive_assessment: Montreal Cognitive Assessment (MoCA)

In cliot: Clinical Indices and Outcomes Tools

Montreal Cognitive Assessment (MoCA)

Description

Calculates the MoCA score, a rapid screening instrument for mild cognitive dysfunction. It assesses different cognitive domains: attention and concentration, executive functions, memory, language, visuoconstructional skills, conceptual thinking, calculations, and orientation. A score of 26 or above is considered normal. One point is added for subjects with 12 or fewer years of formal education (if total score is < 30).

Usage

moca_cognitive_assessment(visuospatial, naming, attention, language, abstraction,
                          delayed_recall, orientation, education_years)

Arguments

visuospatial	Numeric (0-5). Score for Visuospatial/Executive tasks (e.g., Trail Making B, Cube Copy, Clock Drawing).
naming	Numeric (0-3). Score for Naming task (e.g., Lion, Rhino, Camel).
attention	Numeric (0-6). Score for Attention tasks (Digit span, Letter A tap, Serial 7s).
language	Numeric (0-3). Score for Language tasks (Sentence repetition, Verbal fluency).
abstraction	Numeric (0-2). Score for Abstraction task (Similarity pairs).
delayed_recall	Numeric (0-5). Score for Delayed Recall (5 words).
orientation	Numeric (0-6). Score for Orientation (Date, Month, Year, Day, Place, City).
education_years	Numeric. Total years of formal education. Used to calculate the education adjustment (+1 if <= 12 years).

Value

A list containing:

MoCA_Score	The calculated total score (Max 30).
Interpretation	Clinical interpretation of the score (Normal vs Impairment levels).
Education_Adjustment	Indication if the education point was applied.

References

Nasreddine ZS, Phillips NA, Bédirian V, et al. The Montreal Cognitive Assessment, MoCA: a brief screening tool for mild cognitive impairment. J Am Geriatr Soc. 2005;53(4):695-699. doi:10.1111/j.1532-5415.2005.53221.x

Examples

# Example 1: Normal Cognition
# All sections perfect, >12 years education
moca_cognitive_assessment(5, 3, 6, 3, 2, 5, 6, 16)

# Example 2: Mild Impairment with Education Bonus
# Raw score 22, 10 years education (+1 point)
# Result: 23
moca_cognitive_assessment(3, 3, 5, 2, 1, 3, 5, 10)

cliot documentation built on Dec. 1, 2025, 1:06 a.m.