Normal Ageing

Question 1

Longitudinal study: hippocampus atrophy correlates with memory loss

Answer 1

Persson et al. 2006

Question 2

Not all areas shrink at the same rate: hippocampus may lose volume, but not function

Answer 2

Hedden and Gabrieli 2004

Question 3

Lose up to 8% of dopinamergic structure per year

Answer 3

van Dyck et al. 2002

Question 4

White matter loss - integrity and connection - interaction with the PFC and other structures

Answer 4

Guttman et al. 1998

Question 5

Autobiographical memory preserved - shift from episodic detail to emotion

Answer 5

Piefke 2005

Question 6

Theory of mind maintained, maybe improved

Answer 6

Happe et al. 1998

Question 7

Wisdom gained - social decision making

Answer 7

Tentori et al. 2001

Question 8

Regular decline for intensive processing tasks, but verbal IQ increases across the lifespan

Answer 8

Park et al. 2002

Question 9

Brinley plots, decline in processing speeds: fail to detect when there’s more than one underlying function, and parameter values may differ from underlying functions

Answer 9

Perfect 1994

Question 10

Working from death backwards, causes of death distort group level performance

Answer 10

Wilson et al. 2003

Question 11

Cross-sectional designs show processing speed to explain 70-100% of variance, longitudinal 6-29%

Answer 11

Sliwinski and Buschke 1999

Question 12

Amount of light hitting a 60 year old retina is 1/3 of what hits a 10 year old retina

Answer 12

Weale 1988