Neural correlates

Neural correlates are measures of structure or function of the brain that occur in conjunction with experience, in this case sz.

People with sz have abnormally large ventricles in the brain. These are cavities that are. Filled with fluid. Torrey found that sz patioent have 15% larger ventricles than non sufferers. Thi reduces the overall brain tisue.

MRIs of MZ twins have shown that the on with sz has noticeably larger ventricles than the one with not sz. his was clearly visible in 12 out of 15 sets of twins.

Activity in the ventral striatum is associated with a volition since the ventral striatum is responsible for anticipation of a reward for certain actions. Therefore if there is an abnormality in his area then there is likely to be lack of motivation.

Evaluation

Causality issues-what caused what

age ventricles are associated with negative symptoms which isnt an explanation for positive symptoms meaning this isnt. Full explanation.

When assessing the role that brain normalities and neural correlates play other factors must be considered ie drug addiction. his could act as confounding variable for study lowering nternl validity and offering weaker support for this explanation.

Arguable reductionist ignoring situational factors. A diathesis stress relationship may instead be a better option .