Fortunately, as in mechanics, Neurology today were made great strides and thanks to modern neuro-imaging techniques such as Positron Emission Tomography (PET) and functional magnetic resonance imaging (fMRI), the multichannel Electroencephalogram (EEG), SPECT, magnetoencephalography (MEG) and infrared spectroscopy (NIRSI), we are able to observe, from the outside, our motor running.
Modern investigation techniques
Neuroimaging techniques measure the changes in local blood flow, increasing cellular activity and then. MEG and EEG recording neuronal activity conducted in the form of electromagnetic radiation, the PET, SPECT images and fMRI images indirect return of neuronal activity. |
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These techniques are used only in special conditions in laboratories and specialists able to comprehend complex machinery to verify the presence of a pathology, thus providing a vision of the brain in action, not in normal life, but in a laboratory test.
To stay on the subject is the measurement of engine compression ratio or do power tests the engines test bench and not on the road.
Returning to our brain, we don't have images and we don't know how to behave in our real life, such as what happens when we work, we talk to a friend, watch TV, eat. These are very important data to assess the health of our "engine".
In recent times, however, there have been important technological innovations. Very soon we may be able to carry out alone and with our regularity "test-drive" by sending real-time results to the physician, to detect any early signs of destructive diseases like Alzheimer's.
The first interesting development is the new methods for the EEG. Have become so small and cheap enough to be sold as wearable devices, wearable devices. Measure the brain activity through waves is not trivial as it might seem. In fact, offers a lot of information about the brain health of a person.
The latest news
New research carried out at the Queen's University Belfast, in collaboration with the laboratory of dr. Gabriele Miceli of the University of Trento in Italy, showed that the cognitive decline can be detected in older people, with a test of measuring brainwaves of just 30 minutes, in the laboratory.The tests involved 40 healthy adults aged 25 and 80 years and 10 people with various early forms of dementia (age-related cognitive decline) within a range of 60 and 70 years, and has been measured "brain age" to a healthy person based on how quickly responded to a Visual stimulus on a screen.
As for the rest of our body, the brain naturally slows with aging, but in case of presence of cognitive deficits, the brain shows to be older than the chronological age would suggest. These tests could be used in the future as the basis for a diagnosis.
Another team of researchers, in this case of Carnegie Mellon University, looked at the brain's reaction to the reading of a chapter of a book, specifically adapted from the best-selling "Harry Potter and the sorcerer's stone" chose to make reading fun and catchy. Reading is a very demanding task: when we read we must recognize individual words, get their meaning from our "mental dictionary", sew those words into sentences and, again, keep track of different characters as the story unfolds. Finally, if the plot is engrossing, emotions come into play and we must strive to manage them.
In this work – led by dr. Tom Mitchell and Leila Wehbe – the researchers were able to observe processes and brain activity during a real task. Thanks to fMRI were isolated parts of the brain involved in the process, a complex and challenging reading. In this way, the researchers were able to track, in real time, of cerebral activity during an action of everyday life.
Both experiments could be used to detect early cognitive deficits and to measure the effect of drugs or other therapies. The memory and vocabulary are some of the earliest mental capacities which decrease with aging. The patterns obtained with the EEG "custom" and with the task of reading could help to devise the best way of addressing future research.
But the developments do not stop here. According to scientists, similar methods could be used to resolve language problems and specific learning as dyslexia, as well as to measure attention and emotional involvement in disorders such as ADHD and autism. Seen the development of wearable devices and "app", it is very likely that in a short time, these tools will become part of our daily lives.
You can read another articles like Alzheimers Shimptoms, Cognitive Reserve and Alzheimers, How To Prevent Alzheimers, Stages Of Alzheimers.
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