Another really good section -
We hypothesized that abnormal collecting behaviour, characterized by
increased, indiscriminate acquisition behaviour and diminished
discarding behaviour, would occur following damage to prefrontal
regions, but not after damage elsewhere in the brain. We tested this
hypothesis in a group of patients with and without involvement of the
frontal lobe, the specific prediction being that damage to mesial
prefrontal regions Abnormal collecting behaviour was defined as the
gathering and storing of objects to such an extent that significant
interference with normal daily activities resulted from the accumulated
clutter or from the act of collecting itself. Five criteria were used
to distinguish abnormal collecting from normal behaviour. (i) Extent:
the extent of the accumulated items must be excessive relative to
normal behaviour and the individual’s circumstances. (ii) Content: the
collected items must include objects that are of little or no value.
(iii) Interference with normal daily functioning: collecting must
interfere with normal daily functioning, either due to the accumulated
mass of items or from the act of collecting itself. (iv) Onset
following brain injury: the collecting behaviour must have begun after
focal damage to the brain. (v) Resistance to change: the collecting
behaviour must be present for at least 1 year after onset and persist
despite attempts by others to curtail the collecting.
Nathalie
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