The question

Why can a child describe a companion that other people cannot see?

The question needs a distinction

“Seeing an imaginary friend” can refer to several experiences: pretending that a character is present, picturing it mentally or describing a vivid perception-like presence. These are not interchangeable. The starting point is to ask what the child means, rather than assuming that every imaginary companion is literally visible in the same way as another person.

A developmental investigation compared twelve four-year-olds with imaginary companions and fifteen without them. Children with companions readily described and pretended to interact with them, but the groups did not differ in their ability to distinguish fantasy from reality. The small sample limits how broadly that finding can be applied.

What childhood studies show

A study of 159 five-year-olds found that children with imaginary companions were more likely to describe their real friends in terms of mental characteristics. Companion status was not associated with theory-of-mind performance or reported behavioural difficulties in that sample. The result does not support treating the mere presence of a companion as a diagnosis.

Research records children’s descriptions and behaviour. It does not provide direct access to what their private mental imagery looks or feels like.

Adults and inner speech

Two studies of imaginary companions and inner speech examined adult participants as well as childhood histories. One used an online community sample of 1,472 adults; another involved an auditory task with 48 adults. Reported companion histories were associated with differences in the experience of inner speech, and the smaller study found differences in detecting speech within noise.

The researchers discuss imaginative social dialogue as a possible developmental connection. Those associations do not establish a single cause, or show that adults lack imaginative experiences. The premise that children possess a perceptual ability that all adults lose is stronger than these studies support.

What about a possible ghost?

These studies examine imagination, development and perception. They do not demonstrate ghosts or establish a supernatural source for an imaginary companion. A vivid account is evidence of what someone reports experiencing; identifying an external cause requires a different kind of evidence.

Distress, unwanted experiences or changes in functioning warrant attention in their own right. A child’s ordinary imaginative play should not be automatically placed in the same category as a distressing hallucination.

Source register

Follow the evidence.

Linked research and official information used for this note. Inclusion identifies a source; it does not imply that the source has reviewed this website.

Developmental investigation of imaginary companions ↗Study of 159 five-year-olds ↗Imaginary companions, inner speech and voice-hearing ↗