Punding is a term that was coined originally to describe complex prolonged, purposeless, and stereotyped behaviour in phenmetrazine and chronic amphetamine users, by Swedish forensic psychiatrist G. Rylander, in 1968.[1] It was later described in Parkinson's disease.[2] It has also been described in methamphetamine and cocaine users, as well as in some patients with gambling addictions, and hypersexuality.[3]
Punding activity is characterized by compulsive fascination with and performance of repetitive, mechanical tasks, such as assembling and disassembling, collecting, or sorting household objects. For example, punding may consist of activities such as:
- collecting pebbles and lining them up as perfectly as possible,
- disassembling wristwatches and putting them back together again,
- building hundreds of small wooden boxes
- trying but failing to systematically remove the entire contents of all the drawers and shelves in the home and sort through all their contents.
People engaging in punding find immersion in such activities comforting, even when it serves no purpose, and generally find it very frustrating to be diverted from them. They are not generally aware that there is a compulsive element, but will continue even when they have good reason to stop. Rylander describes a burglar who started punding and could not stop, even though he was suffering from an increasing apprehension of being caught.[4]
Interrupting can lead to various responses, including violent rage.
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