What is confabulation and in what conditions is it commonly seen?

• A. Unintentional fabrication of memories; common in Korsakoff syndrome and some amnesic disorders.
• B. Intentional deception to mislead clinicians.
• C. Memory loss solely due to aging.
• D. Confabulation only occurs after head injury.

Answer: (C)

Confabulation is the unintentional fabrication of memories to fill gaps in recall, with the person genuinely believing the invented details are true. It’s not deliberate deception or a conscious lie.

This phenomenon is most classically seen in Korsakoff syndrome and other amnestic disorders, where brain damage in memory-related areas (such as the mammillary bodies and thalamus, and related frontal circuits) leads to gaps in memory that are humorously “filled in” with plausible but false stories. It’s also described in Wernicke–Korsakoff syndrome and can occur with other significant memory impairments.

Normal aging isn’t itself a cause of confabulation; aging may bring benign forgetfulness, but it doesn’t typically produce confident, false memories that the person treats as real. Confabulation can occur after head injury in some cases, but the hallmark associations are with Korsakoff syndrome and other amnestic disorders.