What is superior thalamic radiation?

What is superior thalamic radiation?

The term superior thalamic radiations refers to fiber pathways that connect the ventral nuclear group of thalamus with the precentral gyrus and the postcentral gyrus through the superior thalamic peduncle, the posterior limb of the internal capsule and other parts of the cerebral white matter ( Carpenter-1983 ).

What does the thalamus detect?

Your thalamus is an egg-shaped structure in the middle of your brain. It’s known as a relay station of all incoming motor (movement) and sensory information — hearing, taste, sight and touch (but not smell) — from your body to your brain.

What senses are controlled by the thalamus?

While the thalamus is classically known for its roles as a sensory relay in visual, auditory, somatosensory, and gustatory systems, it also has significant roles in motor activity, emotion, memory, arousal, and other sensorimotor association functions.

What is the role of the thalamus in memory?

Charles Gerfen of NIMH, similarly showed that the thalamus plays a crucial role in sustaining short-term memory. To gather a reward, mice needed to remember where to move after a delay of seconds. In this case, the thalamus was in conversation with a part of the motor cortex during the planning of those movements.

What is anterior thalamic radiation?

The anterior thalamic radiation (ATR) is a white matter (WM) fiber bundle connecting the prefrontal cortex (mainly in the dorsolateral prefrontal cortex) and the thalamus through the anterior limb of the internal capsule.

Why is the thalamus called the relay station?

The thalamus is often described as a relay station. This is because almost all sensory information (with the exception of smell) that proceeds to the cortex first stops in the thalamus before being sent on to its destination.

Which sense does not pass through the thalamus?

The thalamus (from the Greek thalamos or inner chamber) transmits 98 percent of sensory information to the cortex, including vision, taste, touch and balance; the only sense that doesn’t pass through this brain region is smell.

Can you live without thalamus?

“The ultimate reality is that without thalamus, the cortex is useless, it’s not receiving any information in the first place,” said Theyel, a postdoctoral researcher. “And if this other information-bearing pathway is really critical, it’s involved in higher-order cortical functioning as well.”

What does the anterior thalamus do?

The anterior thalamus provides a subcortical circuit supporting memory and spatial navigation. The anterior thalamic nuclei (ATN), a central component of Papez’ circuit, are generally assumed to be key constituents of the neural circuits responsible for certain categories of learning and memory.