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Comprehension: Attaching meaning to the world

So, what is new here? What are you learning about comprehension and the process of attaching meaning to words? Briefly reflect on the current course readings and post any questions or requests for clarification you may have regarding any of the concepts covered in the assigned readings for this week. Use references or link to outside sources as you learn more about this topic.

KARMYS post

Discussing and reading the four lobes of the neocortex is interesting to me because I like to know and understanding what goes on in the brain and how emotions, feelings, and thoughts are provoked. The brain is a very complex mechanism and is always changing with times and research, that is being founded. The cerebral cortex is divided into four lobes. According to Hannaford (2005), each of these lobes is found in both the right and left hemispheres of the brain. The cortex encompasses about two-thirds of the brain mass and lies over and around most of the structures of the brain.

According to Hannaford (2005), the four lobes are Parietal Lobes, frontal lobes, occipital lobes, and temporal lobes, which I have never heard of the occipital lobe. The parietal lobe is positioned posteriorly to the frontal lobes and above the occipital lobes. They are involved in receiving and processing of sensory information. According to Jawabri & Sharma (2019), it also contains the motor cortex, which is involved in planning and coordinating movement; the prefrontal cortex, which is responsible for higher-level cognitive functioning; and Brocas area, which is essential for language production. People who suffer damage to Brocas area have great difficulty producing language of any form.

The next lobe is frontal lobe this lobe is positioned at the front-most region of the cerebral cortex. They are involved with movement, decision-making, problem-solving, and planning. The third lobe is occipital lobe, this lobe is below the parietal lobes, the occipital lobes are the main center for visual processing. According to Jawabri & Sharma (2019), the visual information is sent to the parietal lobes and temporal lobes for further processing. Finally, the temporal lobe, this lobe is located directly below the frontal and parietal lobes. They are involved with memory, emotion, hearing, and language.

The cerebral cortex is divided into four lobes that are responsible for processing and interpreting input from various sources and maintaining cognitive function. Sensory functions interpreted by the cerebral cortex include hearing, touch, and vision. According to Jawabri & Sharma (2019), cognitive functions include thinking, perceiving, and understanding language. The central sulcus, or fissure of Rolando, separates the frontal and parietal lobes, and the deeper lateral sulcus, or fissure of Sylvius, forms the boundary between the temporal lobe and the frontal and parietal lobes.

The frontal lobe, the largest of the cerebral lobes, lies rostral to the central sulcus. According to Jawabri & Sharma (2019), one important structure in the frontal lobe is the precentral gyrus, which constitutes the primary motor region of the brain. When parts of the gyrus are electrically stimulated in conscious patients (under local anesthesia), they produce localized movements on the opposite side of the body that are interpreted by the patients as voluntary.

References

Hannaford, C. (2005). Smart moves: why learning is not all in your head (2nd ed.). Salt Lake City, Utah: Great River Books.

Jawabri, K. H., & Sharma, S. (2019). Physiology, cerebral cortex functions. National Center for Biotechnology Information, 1.