What is the thalamic radiation?

Thalamocortical radiations are the nerve fibers between the thalamus and the cerebral cortex. Functionally, thalamocortical radiations, also called thalamocortical fibers, relay sensory or motor information from the thalamus to distinct areas of the cerebral cortex through relay neurons.

What is posterior to the thalamus?

The anterior pole narrows to form the posterior boundary of the interventricular foramen. Posteriorly the thalamus expands to form the pulvinar. On the posteroventral surface of the thalamus lie two rounded protrusions called the medial and lateral geniculate nuclei.

What does the anterior thalamic radiations do?

The ATR is a WM fiber bundle that connects the dorsomedial thalamic nucleus to the prefrontal cortex (mainly the dorsolateral prefrontal cortex) through the anterior limb of the internal capsule, and is involved in executive functions and planning complex behaviors.

Where is the PTR located in the thalamus?

The posterior thalamic radiation (PTR) is a projection fiber from the posterior part of the thalamus to the occipital cortex, which also includes the optic radiation (Wakana et al., 2004).

Where is the superior thalamic radiation ( STR ) located?

The superior thalamic radiation (STR) consists of fibers traveling from the ventral posterior nuclei of the thalamus to the somatosensory area in the post central gyrus of the parietal cortex.

What are the four pathways of thalamocortical radiation?

Thalamocortical radiations can be separated into four distinct pathways, including the anterior thalamic radiations, posterior thalamic radiations, superior thalamic radiations, and inferior thalamic radiations.

Which is the posterior most aspect of the thalamus?

Posterior. The posterior most aspect of the thalamus is known as the pulvinar. Each pulvinar is lateral to the pineal gland, the Habenular and posterior commissures, posterolateral to the corpora quadrigemini (superior and inferior colliculi), and superior to the medial and lateral geniculate bodies.