chapter  11
19 Pages

Dopamine, cognition, and human aging: New evidence and ideas

ByLARS BÄCKMAN, LARS NYBERG

In this chapter, we discuss research that reveals that the dopamine (DA) system is implicated in cognitive functioning in general (e.g., speed, executive functions, episodic memory) as well as in age-related cognitive deficits. The discussion of DA markers is confined to molecular imaging studies – that is, positron emission tomography (PET) and single positron emission computerized tomography (SPECT). Comparatively large space is devoted to recent studies on DA, cognition, and aging, as well as to prospects for future research.