Fluid intelligence and its relation to the human brain have remained a topic of much scrutiny. In a recent study, however, researchers at UCL have studied fluid intelligence, establishing parts of the brain they believe are responsible for it.
The research, released in the journal Brain, included 227 patients with a history of stroke or tumor in specific parts of the brain. Tests were administered to measure fluid intelligence.
According to the study’s authors: “We assessed 165 healthy controls and 227 frontal or non-frontal patients with unilateral brain lesions on the best-established test of fluid intelligence, Raven’s Advanced Progressive Matrices, employing an array of lesion-deficit inferential models responsive to the potentially distributed nature of fluid intelligence.”
“Our findings indicate that a set of predominantly right frontal regions, rather than a more widely distributed network, is critical to the high-level functions involved in fluid intelligence.”
“Further they suggest that Raven’s Advanced Progressive Matrices is a useful clinical index of fluid intelligence and a sensitive marker of right frontal lobe dysfunction.”