Cerebral cortex is divided into four important lobes which is the frontal lobe, temporal lobe, occipital lobe and parietal lobe. These are the first areas of the cerebral cortex to receive signals from each of the senses. The first lobe is frontal lobe which is located at the front of the brain. This lobe works in reasoning, motor skills, higher level cognition and expressive language. The motor cortex is located at the back side of the frontal lobe. The motor cortex is important in receiving and utilizing the informations from other lobes to carry out body movements. Any damages can caused a person to changes in sexual habits, socialization, attention and increase in risk-taking. The second lobe in our brain is the temporal …show more content…
Corpus callosum is the larger white matter structure in humans brain because it is made up of more than 200 million fibres (Paul M. Thompson, 2007) which connecting the two hemisphere by giving or transmit signals. According to Regina Bailey, a biology expert said that the corpus callosum is a thick band of nerve fibres that divides the cerebrum into left and right hemispheres. It connects the left and right sides of the brain allowing for communication between both hemispheres. The corpus callosum transfers motor, sensory, and cognitive information between the brain hemispheres (Regina Bailey,2013). Based on the case, a study was done led by Weiwei Men of East China Normal University, a revolutionary technique is created to explore the ‘internal connectivity’ of Einstein’s brain via the corpus callosum. It is also said that a thicker corpus callosum suggest that there are a greater number of neurons and different regions of the corpus callosum are implicated in a variety of special …show more content…
According Caminiti, the posterior (back) portion of the corpus callosum is called the splenium; the anterior (front) is called the genu (or "knee"); between the two is the truncus, or "body", of the corpus callosum. The part between the body and the splenium is often markedly narrowed and thus referred to as the "isthmus". The rostrum is the part of the corpus callosum that projects posteriorly and inferiorly from the anteriormost genu, as can be seen on the sagittal image of the brain displayed on the right. The rostrum is so named for its resemblance to a bird's
It sends information for sleep, hearing, taste, and even eye movement. Corpus Callosum: The corpus callosum connects both hemispheres of the brain and allows them to relay messages between one another. People who have a severed corpus callosum can essentially function as 2 different people at the same time, with the left half of their body performing one task, and the right half another. Frontal Lobe: As the largest lobe in our brain, this lobe play a significant role in personality and impulse control.
Forebrain #3 The section I chose is the forebrain which controls the higher functions of the brain, such as thinking, decision making, and dreaming. I chose forebrain #3 which consists of the occipital lobes, parietal lobes, and the somatosensory cortex. The occipital lobes is the visual processing center of the brain containing most of the region of the visual cortex. The occipital lobes are involved in many functions including visual perception, color recognition, reading, comprehension, depth perception, and recognition of object movement.
It also connects the upper and lower parts of the brain.
Firstly, the human brain is a complex organ that commands a variety of different functions within the human body. One specific function of the human
Using functional neuroimaging techniques, studies have shown cognitive
In the Crash Course video, I learned about the different structures of the brain. Franz Joseph Gall, the first phrenologist, introduced a new theory in the early 1800’s. Gall believed that a person’s personality was linked to the ridges and bumps on the skull. However, scientists today understand that the brain contains different parts that are responsible for specific functions. One system of the brain is commonly referred to as the “old brain”.
The brain is the most complex and magnificent organ of the human body. It controls the muscle movements, the secretions of glands,breathing and internal temperature. Every creative thought, feeling, and plan is developed by the brain. The brain acts as the body’s control center. The human brain can be divided into the forebrain, mid-brain and hind-brain.
Parts of the brain and their functions: the frontal brain with controls the higher mental processes. The midbrain, which controls emotions, motivations and the limbic system. The hindbrain which controls movement, and lower mental functions. 3. Split brain: when the corpus callosum is split it destroys the connection between the left and right side of the brain.
The article “Psychiatric Disorders and Functional Disability in Outpatients with Traumatic Brain Injuries” published by the American Journal of Psychiatry studies people who have gone through brain trauma surgery. The main objective of the study is to see what disorders and disabilities come along through the recovery process. After evaluating fifty outpatient brain trauma surgery survivors the results came back and were shocking. “Thirteen (26%) of the patients had current major depression, and an additional 14 (28%) reported a first-onset major depressive episode after the injury that had resolved.
And the region most targeted in the cerebral cortex is the right cortex which is the largest component of the brain which is believed to make these individuals more susceptible to
Some of the effects of the Agenesis of the Corpus Callosum are
The fibres first pass in a dorsomedial direction and then loop over the abducent nerve and produce a small round swelling in the floor of the 4th ventricle. The superior salivary and lacrimatory nuclei of the facial nerve are also present in the lower half of the of pons. These nuclei are small collections of cholinergic nerve cells in dorso-lateral reticular formation. The neuron of these two nuclei seems to be intermingled with each other.
It bidirectionally connects caudal temporal cortex and inferior parietal cortex to locations in the frontal lobe (carlson, 2012; catani, 2008)
This suggestion works in accordance to the evidence that suggests that the brain is predisposed to have certain areas specifically designed for language processing and development. For example, Gazzaniga (1986) stated that language processing occurs in the left hemisphere of the
The hippocampus is differentiated from other cortical areas in the brain due to its archicortical architecture and highly laminar organization. The Cornu Ammonis is subdivided into CA1, CA2 and CA3 region with CA3 proximal to the dentate gyrus. Sometimes the polymorphic layer of the dentate gyrus is regarded as the CA4 region.