The supplementary motor area (SMA) is a part of the primate cerebral cortex that contributes to the control of movement. It is located on the midline surface of the hemisphere just in front of (anterior to) the primary motor cortex leg representation. In monkeys the SMA contains a rough map of the body.
Q. What is the supplementary motor area?
The supplementary motor area (SMA) occupies the posterior one third of the superior frontal gyrus and is responsible for planning of complex movements of contralateral extremities but ipsilateral planning to a small effect.
Table of Contents
- Q. What is the supplementary motor area?
- Q. Is the supplementary motor cortex part of the premotor cortex?
- Q. What does the lateral premotor cortex do?
- Q. What happens if you damage your premotor cortex?
- Q. Can you live without frontal lobe?
- Q. What emotions does the frontal lobe control?
- Q. What does the right frontal lobe of the brain control?
- Q. Is the motor cortex in both hemispheres?
- Q. What are the premotor cortex disorders?
- Q. Is the somatosensory cortex in the frontal lobe?
- Q. Is the primary motor cortex in the frontal lobe?
- Q. Is the prefrontal cortex in the frontal lobe?
- Q. How does the prefrontal cortex affect memory?
Q. Is the supplementary motor cortex part of the premotor cortex?
The premotor cortex occupies the part of Brodmann area 6 that lies on the lateral surface of the cerebral hemisphere. The medial extension of area 6, onto the midline surface of the hemisphere, is the site of the supplementary motor area, or SMA. These divisions are summarized below in Divisions of the premotor cortex.
Q. What does the lateral premotor cortex do?
In summary, both the lateral and medial areas of the premotor cortex are intimately involved in selecting a specific movement or sequence of movements from the repertoire of possible movements.
Q. What happens if you damage your premotor cortex?
Damage to premotor cortex may result in (1) apraxia, an acuired inability to carry out skilled actions that could previously be performed (but without paralysis); (2) deficits in contralateral fine motor control, such as the performance of complex serial movements; and (3) difficulty in using sensory feedback for the …
Q. Can you live without frontal lobe?
Technically, you can live without a frontal lobe. However, you would experience a total paralysis of your cognitive abilities and motor control. So, it would be best to keep your frontal lobe intact.
Q. What emotions does the frontal lobe control?
The frontal lobe is the largest lobe of the brain. The frontal lobe plays a role in regulating emotions in interpersonal relationships and social situations. These include positive (happiness, gratitude, satisfaction) as well as negative (anger, jealousy, pain, sadness) emotions.
Q. What does the right frontal lobe of the brain control?
As a whole, the frontal lobe is responsible for higher cognitive functions such as memory, emotions, impulse control, problem solving, social interaction, and motor function. Damage to the neurons or tissue of the frontal lobe can lead to personality changes, difficulty concentrating or planning, and impulsivity.
Q. Is the motor cortex in both hemispheres?
The motor cortex is found in the frontal lobe, spreading across an area of cortex situated just anterior to a large sulcus known as the central sulcus, which runs down the side of the cerebral hemispheres.
Q. What are the premotor cortex disorders?
Q. Is the somatosensory cortex in the frontal lobe?
Where is the primary somatosensory cortex? The primary somatosensory cortex is located in a ridge of cortex called the postcentral gyrus, which is found in the parietal lobe. It is situated just posterior to the central sulcus, a prominent fissure that runs down the side of the cerebral cortex.
Q. Is the primary motor cortex in the frontal lobe?
The primary motor cortex lies in the posterior part of the frontal lobe. The body is represented somatotopically and inverted with areas such as the face taking up more area than the lower limb.
Q. Is the prefrontal cortex in the frontal lobe?
The prefrontal cortex is the section of the frontal cortex that lies at the very front of the brain, in front of the premotor cortex. The prefrontal cortex can be divided into several subregions.
Q. How does the prefrontal cortex affect memory?
A prominent account of prefrontal cortex (PFC) function is that single neurons within the PFC maintain representations of task-relevant stimuli in working memory. This persistent activity has been interpreted as evidence for the encoding of the stimulus itself in working memory.
