Catastrophe Theory Applied to Neuropsychological Data: Nonlinear Effects of Depression on Financial Capacity in Amnestic Mild Cognitive Impairment and Dementia

Beneath the Top of the Iceberg: Financial Capacity Deficits in Mixed Dementia with and without Depression

Nowadays, controversy exists regarding the influence of comorbid depression on cognition in old age. Additionally, we still know little about the influence of depression in mixed dementia (MD), that is, in cases where there is the co-existence of Alzheimer's disease and vascular dementia (VaD). Given that the assessment of financial capacity is pivotal for independent living as well as in the prevention of financial exploitation and abuse in old age, in this pilot study, we aimed to examine whether comorbid depression in MD patients can influence financial capacity performance. A total of 115 participants were recruited. They were divided into four groups: MD patients with and without depressive symptoms and healthy elderly without depression as well as older adults suffering from depression. Participants were examined with a number of neuropsychological tests, including the Mini-Mental State Examination (MMSE), Geriatric Depression Scale (GDS-15), and Legal Capacity for Property Law Transactions Assessment Scale (LCPLTAS). The results of this study suggested that financial capacity as measured with LCPLTAS in MD patients was severely impaired when depression co-existed compared to patients suffering only from depression and healthy controls. Deficits in financial capacity in MD and comorbid depression should be a point on which healthcare professionals should focus during neuropsychological assessment in order to prevent financial exploitation.

Stressful life events, general cognitive performance, and financial capacity in healthy older adults and Alzheimer's disease patients

BACKGROUND

The influence of stressful life events on general cognition and for the first time on financial capacity performance of patients with a diagnosis of Alzheimer's disease (AD) and in healthy controls (HC) is assessed.

METHODS

A total of 268 participants (122 patients and 146 HCs with similar demographics) were examined with a number of neuropsychological tests, including Mini Mental State Examination (MMSE), Geriatric Depression Scale (GDS-15), and Legal Capacity for Property Law Transactions Assessment Scale (LCPLTAS) for measuring financial capacity. The life change unit (LCU) method was also used.

RESULTS

HCs reported more stressful events than AD patients before the onset of the disease as the LCU load was higher for them (51.80 vs. 27.50), but in both groups the level of LCU load was far below 100, which is the threshold suggested for the induction of a psychosomatic disorder. The most frequently reported life event for AD patients was increased family arguments (n = 45/122), followed by increase in responsibilities (n = 32/122) and financial difficulties (n = 29/122), while the HC group reported problems within the family (n = 56/146), change in health status (n = 32/146), and a death of a beloved family member (n = 27/146). Regressions indicate no causal role for recent life events in the etiopathogenesis of AD, but an influence only of MMSE and diagnosis on financial capacity.

CONCLUSIONS

Stressful life events do not seem to be important in financial capacity and relevant vulnerability to financial exploitation for either HCs or AD patients; therefore clinicians should not consider them per se as a possible aggravating factor for financial deficits.

Complexity Science in Human Change: Research, Models, Clinical Applications

Complexity and entropy prevail in human behavior and social interaction because the systems underlying behavior and interaction are, without a doubt, highly complex [...].