Cognitive and neuroscientific perspectives of healthy ageing.

With dementia incidence projected to escalate significantly within the next 25 years, the United Nations declared 2021-2030 the Decade of Healthy Ageing, emphasising cognition as a crucial element. As a leading discipline in cognition and ageing research, psychology is well-equipped to offer insights for translational research, clinical practice, and policy-making. In this comprehensive review, we discuss the current state of knowledge on age-related changes in cognition and psychological health. We discuss cognitive changes during ageing, including (a) heterogeneity in the rate, trajectory, and characteristics of decline experienced by older adults, (b) the role of cognitive reserve in age-related cognitive decline, and (c) the potential for cognitive training to slow this decline. We also examine ageing and cognition through multiple theoretical perspectives. We highlight critical unresolved issues, such as the disparate implications of subjective versus objective measures of cognitive decline and the insufficient evaluation of cognitive training programs. We suggest future research directions, and emphasise interdisciplinary collaboration to create a more comprehensive understanding of the factors that modulate cognitive ageing.

Cold hearts and bleeding hearts: disciplinary differences in university students' sociopolitical orientations.

Many people believe that a university education leads to the liberalization of students' worldviews. The author aimed to investigate whether such differences occur across disciplines and whether they are due to self-selection or socialization within disciplines. The author conducted 3 correlational studies of university students (N = 223, N = 531) and alumni (N = 143). The results clearly supported the self-selection hypothesis and suggested that students from all disciplines generally endorse liberal or left-wing attitudes. These findings have theoretical implications for the study of belief system development (primarily the impressionable years hypothesis), and they contribute to a greater understanding of how a university education affects the sociopolitical orientations of students.