What is the high left parietal lobe in charge of in the brain?

Answer 1

Parietal and Occipital Lobes
Parietal Lobe
The parietal lobe is located posterior to the central sulcus and superior to the lateral fissure (see figure. The major function of the parietal lobe is to mediate attention, but it is also involved in long-term memory and somatic sensory perception. The association cortex of the parietal lobe, together with a section of the temporal lobe, is responsible for long-term storage of vocabulary words. The somatic sensory area, located adjacent to the central sulcus, receives input from nerves that travel from sensory receptors in all parts of the body, through the spinal cord and brainstem, and into the cortex. The somatic sensory area, like the primary motor area, is organized as a map of the body; nerves projecting from adjacent locations in the body tend to terminate near to each other in the cortex. Damage to the somatic sensory area results in loss of perception of bodily sensations, namely the sense of touch.
Attention and Neglect
The parietal lobe is best known for its importance in attention. PET scans show high activity in the parietal lobe during tasks that require concentrated attention to one or more aspects of a stimulus. For example, if subjects are required to specifically attend to the color, velocity, or shape of an object in their view, blood flow to the parietal lobe increases, indicating that they are using that area of the brain to carry out the task. Damage to the parietal lobe results in a syndrome called neglect, in which patients treat parts of their body or objects in part of their visual field as though they did not exist. This effect is contralateral: if the right parietal lobe is damaged, people will neglect their left side; if the left parietal lobe is damaged, they will neglect their right side. For example, a woman with damage to the right parietal lobe might put makeup on only the right side of her face and eat the food on only the right side of her plate. The visual system remains intact; they can see the neglected side just fine. But because the parietal lobe is damaged, they cannot direct their attention to it, so they fail to notice that it is there. Neglect syndrome is more likely to occur as a result of damage to the right side of the parietal lobe than the left. This is because the right parietal lobe mediates attention to both the left and right fields, while the left controls attention to the right only. Thus, when the left parietal lobe is damaged, the right can compensate, but the converse is not true.

Answer 2

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What is the high left parietal lobe in charge of in the brain?

Answer 3

The parietal lobes have an important role in integrating our senses. In most people the left side parietal lobe is thought of as dominant because of the way it structures information to allow us to read & write, make calculations, perceive objects normally and produce language. Damage to the dominant parietal lobe can lead to Gerstmann's syndrome (e.g. can't tell left from right, can't point to named fingers), apraxia and sensory impairment (e.g. touch, pain. Thus, damage to this lobe is responsible in Alzheimer's. Portions of the parietal lobe are involved in visuospatial processing. This is involved in visual perception.

The parietal lobes can be divided into two functional regions. One involves sensation and perception and the other is concerned with integrating sensory input, primarily with the visual system. The first function integrates sensory information to form a single perception (cognition). The second function constructs a spatial coordinate system to represent the world around us. Individuals with damage to the parietal lobes often show striking deficits, such as abnormalities in body image and spatial relations (Kandel, Schwartz & Jessel, 1991).

Damage to the left parietal lobe can result in what is called "Gerstmann's Syndrome." It includes right-left confusion, difficulty with writing (agraphia) and difficulty with mathematics (acalculia). It can also produce disorders of language (aphasia) and the inability to perceive objects normally (agnosia).

Damage to the right parietal lobe can result in neglecting part of the body or space (contralateral neglect), which can impair many self-care skills such as dressing and washing. Right side damage can also cause difficulty in making things (constructional apraxia), denial of deficits (anosagnosia) and drawing ability.

Answer 4

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The left frontal lobe is a big area with a variety of functions. Generally, the left side of the brain (at least in right-handed people) is concerned with sequential functions like language and arithmetic and the frontal lobe is concerned with behavioral output. For instance, one part of the LFL is Broca's Area, also known as the expressive language area. People with damage here often have difficulty putting together sentences. Another part of the LFL controls voluntary movement of the right side of the body. You would have noticed either of these bright away, though. Other areas are involved in executive functions, such as planning your actions and following through on those plans. Damage to these areas cause a syndrome something like ADD. Related to this is a possible loss of the ability to control emotional behavior (like the case of Phineas Gage). It sounds like what happened to you may have been a loss in the ability to concentrate or carry through multi-step problems. If that's the case, you may want to look in to how you can build up your "working memory."

Answer 5

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