Area 6 is fall under premotor area or supplemental area
Area 6 is part of the premotor area of the brain.
To determine whether Area 6 falls under the premotor area or the supplemental area, we need to understand the organization of the brain and the specific areas involved in motor functions.
The organization of motor areas in the brain is based on a functional hierarchy. The primary motor cortex (M1), located in the frontal lobe, is responsible for executing voluntary movements. This means that it directly sends signals to skeletal muscles to control their movement.
The premotor area and the supplemental area, both located in the frontal lobe, are considered higher-order motor areas that precede M1 in the motor hierarchy. They are involved in planning and coordinating movements rather than directly executing them.
Now, to specifically answer your question about Area 6, it's important to note that the term "Area 6" is broad and can refer to different subregions within the frontal lobe. These subregions are typically labeled as BA6 (Brodmann area 6). BA6 consists of two main subdivisions: the premotor cortex (PM) and the supplementary motor area (SMA).
The premotor cortex (PM), also known as the lateral premotor cortex, is involved in the preparation, planning, and control of voluntary movements. It receives input from other brain regions, such as sensory areas, and integrates this information to guide motor actions.
The supplementary motor area (SMA) is responsible for coordinating complex movements involving both sides of the body, especially movements that are internally generated rather than in response to external stimuli. It plays a role in motor planning and sequencing.
Given this information, we can conclude that Area 6 consists of both the premotor cortex (PM) and the supplementary motor area (SMA). Therefore, Area 6 falls under both the premotor area and the supplemental area.