Living independently
Instrumental activities of daily living (IADL)
Also searched as Instrumental activities of daily living (IADL).
In depth
Instrumental activities of daily living — shopping, cooking, managing medications and finances, using transport. The outcome where cognitive deficits actually cash out.
What drives it
Executive function increases it.
A multiple stepwise regression analysis indicated that executive function tests accounted for 54% of the variance in functional status ... These executive function measures contributed significantly to the…. PMID 12221656
Working memory increases it.
Working memory was a robust predictor of IADL functioning in older adults, especially medication management skills. PMID 31711593
Impulse control increases it.
Major neurocognitive disorder is diagnosed when cognitive decline interferes with independence in everyday activities; the DSM-5 functional criterion was revised so the threshold emphasizes loss of independence in daily living. Sachdev 2014, Nat Rev Neurol 10:634-642 — Classifying neurocognitive disorders: the DSM-5 approach. doi 10.1038/nrneurol.2014.181 That criterion is stated of the cognitive deficits COLLECTIVELY, as the mild-versus-major threshold - it does not attribute loss of independence to this one subdomain, so the arrow is carried by its own study: 'Inhibition and updating in working memory predicted a decline in b-ADL'. doi 10.1038/nrneurol.2014.181
Mental flexibility increases it.
Major neurocognitive disorder is diagnosed when cognitive decline interferes with independence in everyday activities; the DSM-5 functional criterion was revised so the threshold emphasizes loss of independence in daily living. Sachdev 2014, Nat Rev Neurol 10:634-642 — Classifying neurocognitive disorders: the DSM-5 approach. doi 10.1038/nrneurol.2014.181 That criterion is stated of the cognitive deficits COLLECTIVELY, as the mild-versus-major threshold - it does not attribute loss of independence to this one subdomain, so the arrow is carried by its own study: 'spontaneous and reactive flexibilities predicted a decline in i-ADL'. doi 10.1038/nrneurol.2014.181
Unprompted recall increases it.
In the longitudinal analyses, baseline walking speed (men: OR 0.98; women: OR 0.97, p<0.05) and word list memory task scores (men: OR 0.84; women: OR 0.83, p<0.05) in both sexes ... were independent…. PMC4377948
Word & fact memory increases it.
10.3389/fnagi.2015.00139 — Major neurocognitive disorder is diagnosed when cognitive decline interferes with independence in everyday activities; the DSM-5 functional criterion was revised so the threshold emphasizes loss of independence in daily living. Sachdev 2014, Nat Rev Neurol 10:634-642 — Classifying neurocognitive disorders: the DSM-5 approach. doi 10.1038/nrneurol.2014.181 That criterion is stated of the cognitive deficits COLLECTIVELY, as the mild-versus-major threshold - it does not attribute loss of independence to this one subdomain, so the arrow is carried by its own study: 'Language/semantic memory was related only to the correct use of the telephone (p = 0.014)'. doi 10.3389/fnagi.2015.00139
Learned movement increases it.
10.3389/fpsyg.2014.00353 — Major neurocognitive disorder is diagnosed when cognitive decline interferes with independence in everyday activities; the DSM-5 functional criterion was revised so the threshold emphasizes loss of independence in daily living. Sachdev 2014, Nat Rev Neurol 10:634-642 — Classifying neurocognitive disorders: the DSM-5 approach. doi 10.1038/nrneurol.2014.181 That criterion is stated of the cognitive deficits COLLECTIVELY, as the mild-versus-major threshold - it does not attribute loss of independence to this one subdomain, so the arrow is carried by its own study: 'These findings suggest that limb apraxia may adversely influence activities of daily living'. doi 10.3389/fpsyg.2014.00353
Spatial construction increases it.
Major neurocognitive disorder is diagnosed when cognitive decline interferes with independence in everyday activities; the DSM-5 functional criterion was revised so the threshold emphasizes loss of independence in daily living. Sachdev 2014, Nat Rev Neurol 10:634-642 — Classifying neurocognitive disorders: the DSM-5 approach. doi 10.1038/nrneurol.2014.181 That criterion is stated of the cognitive deficits COLLECTIVELY, as the mild-versus-major threshold - it does not attribute loss of independence to this one subdomain, so the arrow is carried by its own study: 'In summary, a significant correlation was noted between visual constructive abilities and dressing and eating activities'. doi 10.1038/nrneurol.2014.181
Memory & focus increases it.
41439004 — Major neurocognitive disorder is diagnosed when cognitive decline interferes with independence in everyday activities; the DSM-5 functional criterion was revised so the threshold emphasizes loss of independence in daily living. Sachdev 2014, Nat Rev Neurol 10:634-642 — Classifying neurocognitive disorders: the DSM-5 approach. doi 10.1038/nrneurol.2014.181
Vision increases it.
Vision loss is associated with increased risk of falls and restricted physical activity. PMC8285732
Hearing increases it.
Verbatim: 'Better hearing improved individuals' quality of life, ability to communicate verbally and their ability to function independently.' (10.1186/s12877-023-04642-2). What was measured: Lawton Instrumental Activities of Daily Living Scale, measured pre-implant and at 18 months post-implant, improved on average by 1.25 (95% CI 0.85-1.65). doi 10.1186/s12877-023-04642-2
Remembering to remember increases it.
10.66285/JAMS.2026.082 — Major neurocognitive disorder is diagnosed when cognitive decline interferes with independence in everyday activities; the DSM-5 functional criterion was revised so the threshold emphasizes loss of independence in daily living. Sachdev 2014, Nat Rev Neurol 10:634-642 — Classifying neurocognitive disorders: the DSM-5 approach. doi 10.1038/nrneurol.2014.181 That criterion is stated of the cognitive deficits COLLECTIVELY, as the mild-versus-major threshold - it does not attribute loss of independence to this one subdomain, so the arrow is carried by its own study: 'PM is an important cognitive ability for successful and independent everyday life beyond vocabulary'. doi 10.66285/JAMS.2026.082
Mood increases it.
10.1186/s41043-026-01311-z — Diurnal cortisol slopes negatively predicted memory retrieval (beta = -0.20, p less than 0.05), which in turn positively predicted IADL (beta = 0.22, p less than 0.01). doi 10.1186/s41043-026-01311-z · PMC4880118
What it drives
It increases Social engagement.
Verbatim: 'Post-stroke patients exhibited reduced social participation (LIFE-H 3.1), with moderate positive correlations observed between the personal, mobility, and responsibility domains and the total scores of FIM, FIM motor, FMA-motor, and FMA-UL.' (10.21527/2176-7114.2024.49.14685). Scope (human observational study): human (post-stroke) · observational, no route/dose · n=34 stroke patients aged 18+ · cross-sectional convenience sample, Northeast Brazil. doi 10.21527/2176-7114.2024.49.14685
Blends that modulate it
Each blend page names this pathway and carries the study behind its claim.
See it on the map
Open the causal map to follow this pathway upstream and downstream, arrow by arrow, each with its study.