Behavioral Communication in Dementia: Getting to the Meaning Behind the Behavior

Behaviors in dementia that are labeled as difficult or challenging are almost always forms of communication. Here is how to approach behavioral interpretation as a clinical and caregiving skill.

One of the most significant shifts in how we understand dementia care over the past two decades has been a move away from labeling behaviors as problems to be managed and toward understanding them as communications to be interpreted. When a person with dementia becomes agitated at a particular time of day, refuses personal care, calls out repeatedly, wanders toward exits, or becomes aggressive during a specific routine, they are expressing something. The behavior is a message. The work of person-centered dementia care is learning how to read it.

The most useful clinical framework for behavioral interpretation is to treat every behavior as a hypothesis about an unmet need. The question to ask is not 'How do we stop this behavior?' but 'What need is this behavior expressing, and how can we meet it?' Possible unmet needs include physical discomfort such as pain, constipation, hunger, or cold, environmental discomfort such as noise, light, or unfamiliar settings, emotional needs such as fear, loneliness, boredom, or a need for connection, and social or cognitive needs such as a desire for purpose, autonomy, or meaningful activity.

Pain is one of the most frequently overlooked drivers of behavioral change in people with dementia, particularly in advanced stages when verbal communication is limited. When a person who does not typically respond verbally to questions about pain becomes agitated during transfers, resistive during personal care, or vocal at times that do not correlate with environmental triggers, an evaluation for pain should be among the first considerations. Non-verbal pain scales such as the PAINAD have been developed specifically to assess pain expression in people who cannot reliably self-report.

Sundowning, the pattern of increased confusion and agitation that typically appears in the late afternoon and early evening, is a common and well-documented behavioral pattern in dementia. Its exact cause is not fully understood, but it is associated with circadian rhythm disruption, fatigue from the cognitive effort of managing the day, and changes in lighting that affect perception. Behavioral approaches that reduce afternoon stimulation, maintain consistent lighting, ensure physical comfort, and introduce familiar and calming activities at that time of day are more effective than pharmacological approaches in most cases.

Resistiveness to personal care is among the most common and challenging behaviors for family and professional caregivers alike. When a person with dementia resists bathing, dressing, or grooming, it is rarely obstinance. It is more often a response to the experience of being approached by someone whose intent they cannot fully understand, being asked to undress in what feels like an unfamiliar or threatening context, being moved in ways that are uncomfortable or disorienting, or simply not having the cognitive capacity to follow the instructions being given. Approaching personal care more slowly, explaining each step in simple terms, using a consistent caregiver if possible, and finding alternative forms of hygiene when direct care is genuinely distressing can all reduce resistance.

The goal is not to eliminate all behavioral expression but to ensure that the communications those behaviors represent are being heard and responded to. A person with dementia who is comfortable, purposefully engaged, and meaningfully connected to caring people will still have difficult moments. But the frequency and intensity of those moments decreases significantly when their underlying communications are consistently interpreted and met.