Generally positive correlations between different ability tests provide the evidence for a
factor of “general intelligence” or Spearman's g. Though a possible neural substrate for g is …

Many tests of specific 'executive functions' show deficits after frontal lobe lesions. These
deficits appear on a background of reduced fluid intelligence, best measured with tests of …

Recent studies have indicated that performance on tests of frontal lobe function are highly
associated with general intellectual ability (g). Some authors have even claimed that the …

BackgroundWe recently demonstrated that decline in fluid intelligence is a substantial
contributor to frontal deficits. For some classical 'executive'tasks, such as the Wisconsin Card …

Tests of fluid intelligence predict success in a wide range of cognitive activities. Much
uncertainty has surrounded brain lesions producing deficits in these tests, with standard …

Executive Functions and Fluid Reasoning are both considered to be core aspects of
intelligence and mediated by frontal lobe functioning. However, both constructs considerably …

Critics of'general intelligence'will sometimes point out that no single measurement can do
justice to the complexity of people's mental abilities. However, the fact remains that standard …

This study reports the relations among normal aging, intelligence, and frontal lobe
functioning. Intelligence tasks and frontal lobe functioning tasks were administered to 107 …

ObjectiveFluid intelligence (Gf) has been related to executive functioning (EF) in previous
studies, and it is also known to be correlated with crystallized intelligence (Gc). The present …

The concept of fluid and crystallized intelligence was introduced to the psychological
community approximately 75 years ago by Raymond B. Cattell, and it continues to be an …