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A cat’s brain supports basic life functions, movement, decision-making, learning, memory, and responses to people and the environment. Researchers have investigated many of these abilities, but feline cognition is still an incomplete field: confident claims about exactly how smart cats are—or what they understand—often go beyond the evidence.
1. A cat’s brain has three major divisions
The Merck Veterinary Manual describes the brain in three main sections, each with a distinct role:
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- Brainstem: controls basic life functions.
- Cerebrum: serves as the center of conscious decision-making.
- Cerebellum: contributes to movement and motor control.
These are broad functional descriptions, not a claim that cat and human brains work identically.
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2. Brain cells communicate through circuits and chemical messengers
Neurons connect in circuits and transmit electrical signals. At connections between cells, neurotransmitters carry signals onward; they can also pass messages to muscles and glands. That communication helps the nervous system coordinate activity throughout the body.
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3. Cat cognition research spans more than “intelligence” tests
A 2015 review by Kristyn R. Vitale Shreve and Monique A. R. Udell surveys research on cat perception, object permanence, memory, physical causality, quantity and time discrimination, sensitivity to human cues, vocal recognition, communication, attachment, personality, and cognitive health. The authors also emphasize that research on domestic-cat cognition is relatively limited and remains incomplete. Findings about one ability do not establish a single, all-purpose measure of feline intelligence.
Read the 2015 review of cat cognition research.
4. Scientists have investigated whether cats understand that hidden objects still exist
Object permanence—the idea that something continues to exist when it is out of sight—is one of the topics covered in cat cognition research. Its inclusion in the research literature shows that scientists have studied the question; it should not be treated as proof that cats reason about hidden objects in the same way people do.
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5. Cat brains can respond to human cues and voices
The cognition review also covers cats’ sensitivity to human cues, vocal recognition, and communication. These are separate research questions: responding to a cue or recognizing a voice does not, by itself, reveal exactly what a cat understands about a person’s intention or words.
6. MRI research has found age-associated gray-matter changes
In a 2022 MRI study, Hamamoto and colleagues analyzed 65 cats without apparent neurological or behavioral signs. They reported age-associated decreases in gray matter in bilateral parietal regions. The authors noted that this observed atrophy may not produce neurological or behavioral signs. A structural difference on a scan, therefore, is not the same as a diagnosis of cognitive impairment.
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7. Older-cat behavior changes can have several causes
Cornell’s Feline Health Center lists disorientation, altered sleep-wake cycles, less interest in play, unusual vocalizing, and house-soiling among possible signs associated with cognitive dysfunction. Similar changes can also be related to other conditions, including arthritis, kidney disease, hyperthyroidism, hypertension, dental disease, or neurological disorders. A new behavior change warrants veterinary assessment rather than an owner’s assumption that a cat has dementia.
Cornell quotes Alexander de Lahunta, DVM, former emeritus professor of anatomy at Cornell University College of Veterinary Medicine: “when examining a cat, if it is acting as if it’s in a world of its own, doesn’t respond to me, paces in a circle, or gets itself in a corner and just stays there, I’ll consider that to be a prosencephalon problem.” This is a clinician’s observation about possible neurological signs, not a diagnostic rule for owners.
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See Cornell’s guidance on feline cognitive dysfunction.
8. Night-time vocalizing is not specific to dementia
A 2021 clinical review reports owner observations from a selected group of 37 cats with cognitive dysfunction and increased vocalization: 67% vocalized more at night, and 64% vocalized more during the day. These percentages describe that group, not cats generally, and vocalizing alone cannot establish a diagnosis.
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9. Enrichment is discussed as a possible management support
A 2021 review by Lorena Sordo and Danièlle A. Gunn-Moore discusses possible approaches to managing feline cognitive dysfunction, including environmental enrichment. The cited literature does not establish that a particular toy or puzzle feeder improves intelligence, prevents age-related decline, or treats cognitive dysfunction. If offering enrichment, choose an activity the individual cat can use and enjoys, and introduce it without creating frustration; no particular feeder is clinically validated by the cited sources.
Read the 2021 review of cognitive dysfunction and management.
10. Easy access to resources matters for older cats
The same clinical review discusses easy access to key resources as a possible management support. In practice, consider whether a cat can comfortably reach food, water, resting places, and the litter box, especially if mobility is limited. Cornell also discusses ramps and accessible resources for cats with mobility problems. These adjustments support access; they are not a proven way to prevent dementia or restore cognition.
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