Posted at 04.10.2018
The occipital lobe is the guts for visual control in the human brain. It's the smallest of the four lobes in the cerebral cortex and is also positioned in the posterior region of the cerebral cortex. The occipital lobe is accountable for visuospatial handling and interpreting conscious aesthetic percepts (Canevin et al). The goal of this paper is to research any pathological diseases or damage that may affect the brain area, along with identifying the major neurotransmitters, and the various contacts the occipital lobe has with other brain parts. Additionally, this paper will discuss the efficient areas of the occipital lobe.
The occipital lobe is not specifically vulnerable to injury due to its location behind the mind. Although, when destruction does occur it presents a number of symptoms ranging from hallucinations, illusions, the increased loss of vision, and the inability to identify faces and items.
Visual illusions often take the proper execution of objects showing much larger or smaller than they really are. This is usually the first indication that there is an abnormality in the occipital region. Often patients experience more serious symptoms such as, visible hallucinations. Complex visible hallucinations are associated with right occipital accidental injuries, tumors, seizures, and other abnormalities ( Benizky, 2001). Aesthetic hallucinations may go with many neurological and psychiatric disorders. Deciding whether hallucinations are the result of damage to the occipital lobe or due to a psychiatric disorder requires an intensive examination of the individuals past record. Further analysis provides insight into the subjective aspect of visible hallucinations, and provides new ideas of conception and recall.
Patients who've suffered damage to their occipital lobe scheduled to a heart stroke may not experience any problems apart from difficulties with their vision. A number of the medical indications include problems recognizing things, loss of side eyesight coordination, and visible lowering. Some patients may discover the audio of something however, not the sight. For instances, a patient can acknowledge a bell calling by hearing it only, rather than by visually witnessing it.
To function properly the occipital lobe utilizes various neurotransmitters from a variety of brain locations. Many neurotransmitters are had a need to accurately identify a potential hazard and implement a reaction. The primary neurotransmitter mixed up in occipital lobe is serotonin. The functions of serotonin are numerous and appearance to involve the control of desire for foods, sleep, memory space, and learning. (Canevin et al). Numerous brain parts become turned on when the occipital lobe sends visual information. Most important is the activation of the frontal lobe, that allows an individual to logically process the information. The neurotransmitter most from the frontal lobe is dopamine. Dopamine is accountable for motivation, cognition, punishment and reward. It is simple to start to see the relationship dopamine is wearing visual source (Anderson and Rizzo, 1994). The neurotransmitter dopamine takes on a crucial role in positive reinforcement. Organisms are rewarded for habits and aesthetic stimuli they understand as positive. Positive reinforcement is the basis for everyone learning.
Because the occipital lobe is the aesthetic processing middle of the mind, it offers mental representations of fact, which is then prepared and delivered to other brain regions. For example, when a person perceives a train arriving at them, the occipital lobe interprets these details and transmits it to the frontal lobe. The frontal lobe functions the information and motivates the individual to behave. Once this is achieved, the information is sent to the cerebellum which produces the reaction to escape the way.
The functions of the occipital lobe are numerous and extensive. Above all, the occipital lobe is the visible processing centre of the brain, It generates a mental representation of visual stimuli. Furthermore, it regulates our sleeping and synchronizes all the cerebral lobes. The occipital lobe produces delta brain waves and the neurotransmitter serotonin. Additionally, the occipital lobe is associated with the brain's capacity to recognize objects. The occipital lobe isn't just responsible for aesthetic recognition of items but it also helps us differentiate between styles. Identifying and interpreting different patterns such would be much harder if the occipital lobe did not function as it can.
Furthermore, the occipital lobe provides the primary visual cortex which is highly specialised in finalizing visouspatial information. The occipital lobe is split into four extrastriate aesthetic cortical areas which are identified as V1, V2, V3, and V4. Neurons in this field respond perfectly to visual stimuli of their field. Studies show that this area is accountable for conscious belief (Canevin et al). Each aesthetic cortical area transmits information in two ways; the dorsal course and the ventral way. The dorsal pathway is associated with action and object location. The ventral course is most associated with the storage of long term memory.
In conclusion, the occipital lobe is one of the most crucial structures of the cerebral cortex. It is highly customized in recognizing shapes, faces, objects, and colors. The extremely complex interaction between your occipital lobe and other brain locations emphasizes the elaborate relationship that's needed is for visual processing. Without such a system it would be impossible to understand reality in any significant way.