Brain Imaging Technology

Brain Imaging Technology

The historical description of aphasia illustrate  that people have long been fascinated by the brain language connection. To identify the language regions of brain, there are brain recording technologies,such as:

1. Computer Termography

2. Magnetic Resonance imaging (MRI)

3. Positions Emossions Temoraphy (PET)

4. Functional MRI (FMRI)

5. Single Photon Emossion CT (SPECT)

The MRI Scans of the brains show the broca's Aphasia and wenicke's Aphasia patient. The black areas show the sister of the lessons. A variety of scanning techniques permius to measure metabolic activity in particular areas of the brain.

Dramatic evidence for differential and structured brain is also provided by studies of both normal individuals and patients with lessons in regions of the brain other than Broca's and wernicke's areas. Some patients have difficulty speaking a person's name name, other have problem naming animals and still others cannot name tools.

Experiments found thats there was differential activation in the normala brain in just those sites that were damaged in the apasics who were unable to name persons,animals or tools. Further evidence for the separation of cognitive system is provided by  the neurological and behavioral findings that  follow brain damage. Some patients lose the ability to recognize sounds or colors or familiars faces while retraining all other functions. A patients may not be able to recognize his wife when she walks into the room until she stars to talk. This suggest th differential of many aspects of visual and auditory processing.