Posterior thalamic radiation

The posterior thalamic radiation is a group of projection fibres that connects the posterior (caudal) part of the thalamus with the parietal and occipital lobes of the cerebral cortex. These fibres pass through the posterior thalamic peduncle and the posterior and retrolentiform limbs of the internal capsule before spreading to their cortical destinations.

In simple terms, it provides an important communication pathway between the posterior thalamus and the posterior regions of the cerebral cortex.

Please note that the posterior thalamic radiation includes important visual thalamocortical fibres, with the optic radiation connecting the lateral geniculate body to the primary visual cortex.