What is the function of the temporal lobe of the brain? Specifically on the left hemisphere?
Answer:
The temporal lobe is one of the four major divisions of the cerebal cortex. It controls emotions, memory,hearing, language and learning. The left side of our brain deals more with language and analyizing information. Sometimes people are more prone to have epilepsy if they have problems with their left temporal lobe.
http://en.wikipedia.org/wiki/temporal_lo...
http://en.wikipedia.org/wiki/broca%27s_a...
Both these links will give you BAGS of information! Good luck with your assignment!
Temporal Lobe- associated with perception and recognition of auditory stimuli, memory, and speech
Broca's aphasia:
affects the third frontal convolution (both the gyrus and the sulcus) of the left frontal lobe. ( Broca's area, Brodmann's area #44)
Characteristics are telegraphic speech, affected syntax, as well as labored and slow speech, Melodic Contour is flat and Articulatory Agility is impaired. Potential problems include: simplification of consonant clusters (e.g. t/st, p/spl) and distortion of phonemes, substitutions are infrequent. A few paraphasias may occur. They will usually be literal. Repetition is typically impaired, as is Word finding. Auditory Comprehension is superior to expressive language. The patient's ability to understand grammatical morphemes will be affected. So, while it can be said that auditory comprehension is good in comparison to that of Wernicke's aphasics, it is not normal.
The Token Test (DeRenzi & Vignolo, 1966), which assesses subtle receptive language dysfunction, can be used to evaluate the auditory comprehension of Broca's aphasics and to help distinguish between Broca's aphasia and verbal apraxia. Also, limb apraxia may not allow the patient to carry out the instructions, even though he/she understands them.
Hemiplegia/Hemiparesis of the right side is common in left hemisphere lesions causing Broca's aphasia (remember, the language center is in the left hemisphere for more than 90% of the population) The face and arm are most likely to be affected due to the organization of the motor strip.Apraxia frequently accompanies this type of aphasia as it is also caused by lesions to area 44. Broca's aphasics typically have low frustration tolerance. They are aware of their errors and may respond to them with a catastrophic reaction which might include crying, screaming and yelling, etc.
Broca's area:
the area of the brain involved in the programming of motor movements for the production of speech sounds; it is also involved in syntax; Broca's area is located on the inferior third frontal gyrus in the hemisphere dominant for language; injuries here may result in apraxia or Broca's aphasia
Definately a question to be asked of your doctor. They are the ones with access to all of your medical history and any test results.
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