Thursday, November 22, 2018

SHARP MEMORY: A TRUE TEST OF CRYSTALLIZED INTELLIGENCE AND BRAIN HEALTH

Brain function has been better understood owing to the recent advancements in technology resulting in the development of some cutting-edge techniques such as Proton Emission Tomography (PET) scanning, functional Magnetic Resonance Imagery (fMRI) and so on, used in studying and understanding more deeply, the activity of a completely actibe human brain. These techniques have been used in studying both simple and complex responses of the brain including learning, emotions, thoughts, memory and so on.

Memory
Memory is the retention and storage of in formation acquired through learning.

Memory could be better explained and understood in real terms physiologically than psychologically. Memory is, therefore, of two forms:

- Explicit memory

- Implicit memory

Explicit (declarative or recognition) memory is the form of memory associated with conciousness or awareness. It is dependent on the hippocampus and other parts of the medial temporal lobes of the brain for its retention. This form of memory is further subsumed under to two categories:

- Memory for events known as episodic memory.

- Memory for, words , rules, language, and so on knowns as semantic memory.

Implicit (non declarative or reflexive) memory is a form of memory which it's retention does not involve processing in the hippocampus. In most instances, this includes skills, habits and conditioned reflex. Explicit memory initially acquired from activities such as learning to type become implicit once the task is thoroughly learnt. Implicit memory is subsumed under:

- Long-term memory

- Short-term memory

Long-term memory stores memories for years, and, sometimes, for life. This form of memory is resistant to any kind of physical or chemical disruptions.

Short-term memory is a form of implicit memory that last seconds to hours during which processing in the hippocampus and elsewhere lays down long-term changes in the strength of connection of the neurons. During this period or process, the traces of this memory may be disrupted by trauma or various drugs or other chemical substances. This form of memory has another special subcategory known as working memory

Working memory is a special form of short-term memory needed by the brain to hold an information or available data for a very short time while waiting for an action on it this form of memory is used mainly in active duty such as driving. It is an important yardstick for measuring intelligence quotient of an individual.

Sharp memory is really a true test of brain health and crystallized intelligence. It could be seriously inhibited be poor diet, poor use of the brain, which could cause disease conditions such as Alzheimer's disease, amnesia, psychosis and so on.

How sharp is your memory?

Festus C. Anaba, B Med. Sci. Physiology




No comments:

Post a Comment

GOOD BED: GOOD BRAIN

Waking up not fully mentally revived or energized is a harbinger for poor sleep quality. Sleep quality is a function of several factors - ra...