Anterior cingulate cortex
It appears to play a role in a wide variety of autonomic functions, such as regulating blood pressure and heart rate.
Trisynaptic circuit
The association cortex includes most of the cerebral surface of the brain and is responsible for processing that goes between the arrival of input in the primary sensory cortex and the generation of behaviour. Receives and integrates information from various parts of the brain and influences many cortical and subcortical targets. Inputs to the association cortices include the primary and secondary sensory and motor cortices, the thalamus, and the brain stem. The association cortex projects to places including the hippocampus, basal ganglia, and cerebellum, and other association cortices. Examination of patients with damages to one or more of these regions, as well as noninvasive brain imaging, it has been found that the association cortex is especially important for attending to complex stimuli in the external and internal environments. The temporal association cortex identifies the nature of stimuli, while the frontal association cortex plans behavioural responses to the stimuli.