Theories Of Ageing

Question 1

Frontal ageing hypothesis - declines in frontal efficiency account for cognitive deficits

Answer 1

Dempster 1992

Question 2

Frontal lobe isn’t unique, network, not localisation approach

Answer 2

Greenwood 2000

Question 3

HAROLD - activity in frontal lobe becomes bilateralised

Answer 3

Cabeza 2002

Question 4

Posterior-Anterior shift - activity shifts towards front of the brain

Answer 4

Davis et al. 2008

Question 5

CRUNCH neural resources needed at lower levels, nothing left for higher loads

Answer 5

Reuter-Lorenz and Cappell 2008

Question 6

Functional compensation - right PFC and occipital areas in face perception

Answer 6

Lee et al. 2011

Question 7

Scaffolding theory - declining structures shored up with additional circuitry

Answer 7

Park and Reuter-Lorenz 2009

Question 8

Dedifferentiation - decline in neural specificity, difficultly engaging in specialised mechanisms

Answer 8

Li and Lindenberger 1999

Question 9

Dopamine hypothesis

Answer 9

Bäckman et al. 2006

Question 10

Speed of processing

Answer 10

Salthouse 1992