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The brain is dependent on the cerebrovascular system, particularly microvasculature, for a consistent blood supply; however, age-related changes in this system affect neuronal and therefore cognitive function. Structural vascular markers and vascular disease appear to preferentially affect fluid cognitive abilities, sparing crystallized abilities. We sought to investigate the relationships between cerebrovascular function and cognitive domains. Fifty individuals between 60 and 75 years of age (31 women, 19 men) underwent cognitive testing: Wechsler Vocabulary and Matrix Reasoning subtests (crystallized and fluid ability measures, respectively Wechsler, 2011), and the Addenbrooke's Cognitive Examination-Revised (ACE-R; general cognitive ability; Mioshi, Dawson, Mitchell, Arnold, & Hodges, 2006). Transcranial Doppler (TCD) measures were also collected at rest and during a cognitive word-generation task, from which a lateralization index was calculated. Lower pulsatility index at rest, and greater left lateralization during the TCD cognitive task were associated with better performance on the Matrix Reasoning but not the Vocabulary test; these effects were independent from each other and from any vascular comorbidity burden. These functional findings confirm previous structural studies, which revealed that fluid abilities are more vulnerable to cerebrovascular dysfunction than crystallized abilities, and identify two (likely related) mechanisms: degraded cerebrovascular integrity (indexed by pulsatility index) and a delateralization of function. Cerebrovascular dysfunction is a key contributor to cognitive aging that deserves further attention, particularly in relation to early diagnostic markers of impairment and monitoring of vascular (e.g., physical activity) interventions. [ABSTRACT FROM AUTHOR]

Emotional empathy is a congruent emotional response stemming from another's emotional state and has mixed evidence for its association with age. We sought to synthesize existing data to investigate cross-sectional changes in emotional empathy across adulthood using random-effects meta-analyses. Embase, APA PsycInfo, Medline, and Scopus databases were systematically searched until October 2022. Thirty-three studies assessed age categorically by comparing older ( M = 68.42, SD = 4.95) with younger ( M = 27.55, SD = 6.82) adults and demonstrated higher emotional empathy in older adults ( g = 0.10, p = .039). Seven studies examined age continuously (18-100 years), resulting in a positive correlation with age ( z r = .08, p = .033). Subgroup analyses identified age effects differed based on the emotional empathy measure but not on measure type (state vs. trait) or gender ratio (73% women and 27% men). Cross-sectional results indicate emotional empathy may increase across adulthood. These results clarify the previously mixed reports of typical emotional empathy functioning in later life. Age effects varying due to the emotional empathy measure examined indicate that these measures' convergent validity should be reexamined. Further research should employ older, population-based, non-western, educated, industrialized, rich, and democratic samples and longitudinal designs. (PsycInfo Database Record (c) 2024 APA, all rights reserved).