Memory2018-11-15T11:44:42+00:00

Memory

Memory

What is memory ?

Memory is the key cerebral process daily solicited to record, store and restitute information coming from new events and experiences in an appropriated context.

Short-term memory stores a first level of information. The working memory is assimilated to the short-term memory, because it keeps in mind the information we need in real time to perform an action (remember a phone number, read, calculate). If we do not pay close attention to this information, they dissipate quickly, for a few seconds to 1 minute.

Long-term memory stores information for a long period. Episodic memory is part of long-term memory and is responsible for personal memories storage of autobiographical events in a defined space-time space, whether or not associated with the emotional state of the past moment (« What were my last holidays ? », « When was my last family meeting? »).

Short-term memory stores a first level of information. The working memory is assimilated to the short-term memory, because it keeps in mind the information we need in real time to perform an action (remember a phone number, read, calculate). If we do not pay close attention to this information, they dissipate quickly, for a few seconds to 1 minute.

Long-term memory stores information for a long period. Episodic memory is part of long-term memory and is responsible for personal memories storage of autobiographical events in a defined space-time space, whether or not associated with the emotional state of the past moment (« What were my last holidays ? », « When was my last family meeting? »).

Short-term memory stores a first level of information. The working memory is assimilated to the short-term memory, because it keeps in mind the information we need in real time to perform an action (remember a phone number, read, calculate). If we do not pay close attention to this information, they dissipate quickly, for a few seconds to 1 minute.

Long-term memory stores information for a long period. Episodic memory is part of long-term memory and is responsible for personal memories storage of autobiographical events in a defined space-time space, whether or not associated with the emotional state of the past moment (« What were my last holidays ? », « When was my last family meeting? »).

The hippocampus, located in the brain’s medial temporal lobe, is the key brain area involved in both memory formation and consolidation. It controls two key processes involved in memory acquisition:

The hippocampus, located in the brain’s medial temporal lobe, is the key brain area involved in both memory formation and consolidation. It controls two key processes involved in memory acquisition:

What are the leading causes of cognitive decline ?

Episodic long-term memory and short-term memory are the most affected by decline with advancing age. Research show that working memory can decline by 5-10% every decade, as early as our 20s. Episodic memory also starts declining as age 20, with a more precipitous decline observed from age 70.
A study shows that by age 70, the amount of information recalled 30 minutes after hearing a story once is about 25% less than the amount remembered by an 18-year old (Buckner et al., 2004).

What are the leading causes of cognitive decline ?

Episodic long-term memory and short-term memory are the most affected by decline with advancing age. Research show that working memory can decline by 5-10% every decade, as early as our 20s. Episodic memory also starts declining as age 20, with a more precipitous decline observed from age 70.
A study shows that by age 70, the amount of information recalled 30 minutes after hearing a story once is about 25% less than the amount remembered by an 18-year old (Buckner et al., 2004).

Some factors, characteristic of new life patterns, have been recognized as alarming in accelerating aging process on cognitive function.

In daily life, unbalanced diet including excessive quantities of food rich in saturated fatty acids is a major risk of accelerated cognitive decline. According to literature, the following graph shows that a daily higher consumption of food rich in fatty acids significantly reduces cognitive scores (p<0.05). Eskelinen et al., 2008

On the contrary, a diet particularly rich in essential polyphenols such as MIND diet (Mediterranean-DASH Diet Intervention for Neurodegenerative Delay) is well adapted to prevent age-related cognitive decline. Morris et al., 2015  study shows that the more we consume food from MIND diet, the less the cognitive decline is pronounced over the 10 years of the study. To conclude, a “high MIND score” delays theoretical cognitive age by 7.5 years when compared to a “low MIND score”.

In daily life, unbalanced diet including excessive quantities of food rich in saturated fatty acids is a major risk of accelerated cognitive decline. According to literature, the following graph shows that a daily higher consumption of food rich in fatty acids significantly reduces cognitive scores (p<0.05). Eskelinen et al., 2008

On the contrary, a diet particularly rich in essential polyphenols such as MIND diet (Mediterranean-DASH Diet Intervention for Neurodegenerative Delay) is well adapted to prevent age-related cognitive decline. Morris et al., 2015  study shows that the more we consume food from MIND diet, the less the cognitive decline is pronounced over the 10 years of the study. To conclude, a “high MIND score” delays theoretical cognitive age by 7.5 years when compared to a “low MIND score”.

These results are confirmed by several epidemiological studies, which highlight the key role of essential polyphenols, mainly flavonoids, from fruits and vegetables on preventing age-related cognitive decline.

These results are confirmed by several epidemiological studies, which highlight the key role of essential polyphenols, mainly flavonoids, from fruits and vegetables on preventing age-related cognitive decline.

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Information contained in this page relate to ingredients that are not intended to be supplied as such to the final consumer. These information are intended only for health professionals and operators of the food supplement sector.

 

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