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Health education · Cognitive healthPrevention and overall health
MoCA test: understanding the assessment of memory and cognitive functions
Worried about your memory? Understanding cognitive changes is a first step.
Forgetting an appointment, searching for words, losing the thread of a conversation or having more difficulty concentrating can raise questions.
These changes do not necessarily mean that a person is developing Alzheimer’s disease. Several factors can influence memory and cognitive abilities.
The MoCA (Montreal Cognitive Assessment) is a screening tool used to examine different brain functions and identify certain signs that may warrant a more in-depth medical assessment.12
At Clinique IPS du Palais, in Saint-Hyacinthe, we believe that a better understanding of one’s health helps people make informed decisions.
The MoCA is a standardized cognitive screening test developed by neurologist Dr. Ziad Nasreddine and his colleagues; its validation was published in 2005.1
Among other uses, it helps identify mild cognitive impairment. Unlike a simple memory exercise, the MoCA explores several abilities that are essential to daily functioning.12
The test does not measure a person’s intelligence. Rather, it provides a snapshot of certain cognitive functions at a given point in time.
It assesses, among other things:
memory: retaining and retrieving certain information;
attention and concentration: staying focused on a task;
language: using words and understanding certain instructions;
executive functions: organizing, planning and carrying out tasks;
visuospatial abilities: understanding and organizing information in space;
orientation: knowing where you are in time and space.
The signs
When can a cognitive assessment be useful?
An assessment may be considered when a person or those around them notice unusual changes. It is particularly relevant when the difficulties persist, progress or interfere with independence.
Important: a sudden change in confusion or mental state requires an urgent medical assessment, not simply an appointment for a memory test. If in doubt, call 911 or go to the emergency department.
For example:
frequent forgetfulness that disrupts daily life;
repeated questions or forgotten conversations;
new difficulties organizing one’s activities;
problems managing medications, appointments or finances;
increased difficulty finding words;
disorientation in a usually familiar environment;
changes in judgment or planning abilities.
What to expect
How does the MoCA test work?
The full version of the MoCA generally takes about ten minutes, but a complete clinical consultation requires more time.3
The health professional presents a series of standardized tasks and questions. They may, for example, ask the person to memorize information, do attention exercises or perform certain visual and language tasks.
Adapted versions also exist, including for people with a visual or hearing impairment or limited schooling.3
To prepare:
the test is not painful and requires neither injections nor any special medical device;
bring your glasses and hearing aids, if needed;
mention your medications and the changes you have noticed;
with your consent, a loved one can accompany you to describe the changes they have noticed.
The results
How to interpret the results?
The full version of the MoCA is scored out of 30 points.3 The result gives an indication of the performance observed at the time of the assessment and must be interpreted in context.
A score below the commonly used screening threshold does not automatically mean that a person has dementia or Alzheimer’s disease. Conversely, a reassuring result does not necessarily rule out early cognitive impairment.
The MoCA test is a screening tool. On its own, it cannot be used to make a diagnosis.
Several factors can influence the result:
age and level of education;
the language used for the assessment;
visual or hearing difficulties;
fatigue or lack of sleep;
anxiety, depression or stress;
certain illnesses and certain medications.
Understanding
Aging, mild impairment or something else?
Normal forgetfulness or cognitive impairment?
With aging, some people notice that they need more time to retrieve information. Occasional forgetfulness, such as searching for a word or misplacing one’s keys, can occur without being associated with a disease.
On the other hand, repeated difficulties that disrupt usual activities deserve particular attention. The difference lies, among other things, in the frequency, progression and consequences of the symptoms in daily life.
However, not every memory change should automatically be attributed to aging.
What is mild cognitive impairment?
Mild cognitive impairment refers to a decline in one or more cognitive functions (memory, language, thinking, judgment) beyond what normal aging explains, without significantly interfering with activities of daily living.4
The course varies depending on the cause: many people remain stable or improve over time, while others see their difficulties progress.4
Mild cognitive impairment therefore does not automatically mean that dementia will develop.
Causes
Are memory problems always caused by Alzheimer’s?
No. Several conditions can cause or worsen cognitive difficulties, and some can be treated or corrected.45
That is why a clinical assessment should not be limited to the result of a cognitive questionnaire.
What happens when a cognitive problem is suspected?
1
A clinical discussion
The professional reviews the symptoms, how they have evolved, the medical history and the consequences in daily life.
2
A cognitive assessment
A tool such as the MoCA may be used when indicated.
3
Looking for contributing factors
Medications, sleep quality, mood and other medical conditions are among the things taken into consideration.
4
Additional tests
Depending on the situation, blood tests, a neurological examination, imaging or a specialized assessment may be indicated.
5
A follow-up plan
The next steps are tailored to the person’s situation, needs and the results of the assessment.
With the patient’s consent, the involvement of a loved one can provide useful information about the changes observed.
Prevention
How to preserve your cognitive health?
Certain habits support brain health and may help reduce the risk of cognitive decline. The Lancet Commission (2024) identified 14 modifiable risk factors, including physical inactivity, social isolation, hearing loss, hypertension, diabetes and high LDL cholesterol.6
Move regularly
Physical activity contributes to cardiovascular health and to maintaining functional abilities.
Maintain social relationships
Interacting with loved ones and taking part in social activities stimulate various cognitive abilities.
Stimulate your brain
Reading, learning, trying new activities and keeping a variety of interests help engage cognitive functions regularly.
Take care of your sleep
Adequate sleep supports attention, concentration and memory, among other things.
Monitor your cardiovascular and metabolic health
Controlling blood pressure, diabetes, cholesterol and other risk factors contributes to overall health, including brain health.
Protect your hearing health
Managing hearing loss is one of the important measures for preserving communication and social participation.
These measures do not guarantee the prevention of a neurodegenerative disease, but they contribute to overall cognitive health.
It is appropriate to seek care when memory or concentration problems persist, worsen or begin to affect daily life. A nurse practitioner can perform a clinical assessment, look for certain possible causes and determine the necessary tests or referrals within the limits of their scope of practice.
A concern about memory deserves to be discussed, even if the symptoms seem mild. The clinic’s service list includes cognitive screening – MoCA test and extended cognitive screening.
Nasreddine ZS, Phillips NA, Bédirian V, Charbonneau S, Whitehead V, et al. The Montreal Cognitive Assessment, MoCA: a brief screening tool for mild cognitive impairment. Journal of the American Geriatrics Society, 2005. doi:10.1111/j.1532-5415.2005.53221.x. doi.org
MoCA Cognition (MoCA Test Inc.). Official MoCA website (domains assessed, early detection of mild cognitive impairment). Accessed October 8, 2026. mocacognition.com
MoCA Cognition (MoCA Test Inc.). Paper (test versions: duration, scoring out of 30, adapted versions). Accessed October 8, 2026. mocacognition.com
Alzheimer Society of Canada. Trouble cognitif léger. September 2018, accessed October 8, 2026. alzheimer.ca
Medical Council of Canada. Troubles neurocognitifs majeurs ou légers (démence) — assessment objectives. March 2025 version, accessed October 8, 2026. mcc.ca
Alzheimer Europe. 2024 Lancet Commission underscores potential dementia risk reduction, identifying 14 modifiable risk factors. July 31, 2024, accessed October 8, 2026. alzheimer-europe.org
This page is intended to inform patients. It does not replace an individualized consultation or medical assessment. It does not reproduce the MoCA test exercises. Published October 8, 2026.
