Declarative memory refers to the type of memory that involves consciously recalling facts, events, or experiences. It is like a mental record of information that we can consciously retrieve and talk about.
Full definition
«We know that sleep spindles are involved
in declarative memory — explicit information we recall about the world, such as places, people and events,» she explained.
Claire Discenza - «Interactions between the hippocampus and orbitofrontal cortex in rat long -
term declarative memory» (Advisor: S. Ramus)
And while de Waal agrees with the researchers that the dogs must be
using declarative memory to do this type of imitation, Hare and others are less certain.
The findings support a theory of language acquisition that suggests that some parts of language are learned through procedural memory, while others are learned
through declarative memory.
«Both during encoding and retrieval of
declarative memories there is an interaction between these areas mediated through gamma and theta oscillations.
Given declarative memory's powerful role in learning, one might expect it to help individuals acquire all kinds of compensatory strategies — as long as it remains functional.
Because declarative memory is the only brain system that supports such explicit learning, these strategies must depend on this system.
First, therapists can make greater use of techniques that rely
on declarative memory, such as approaches that employ explicit knowledge.
A number of studies have found that people with autism, OCD or SLI (but not the control subjects) show activation in the hippocampus or
other declarative memory brain regions when performing tasks involving social skills, planning or grammar.
Whereas other memory systems are more specialized — helping us learn movements or recall emotional events, for instance —
declarative memory absorbs and retains a much broader range of knowledge.
In addition, by giving the children a grammar test, we discovered that, among those with SLI (but not among the unimpaired children),
better declarative memory was indeed linked to better grammatical abilities.
We presented evidence suggesting that
declarative memory enables people with OCD or Tourette's syndrome to learn to control compulsions and tics; allows individuals with autism to memorize strategies that improve social interactions; and helps people with dyslexia or SLI overcome reading and language difficulties.
This explains the mystery of the remembered pinprick: Claparède's patient lacked the ability to
form declarative memories, but she had a functioning amygdala that kept the memory alive, albeit unconsciously.
In hundreds of tests over 40 years, they parsed H.M.'s memories into several broad categories —
including declarative memories, or «knowing that,» and procedural memories, or «knowing how.»
Replay appears to be the brain's primary method of
consolidating declarative memory, she notes: «This replay stimulates a transfer of the memories back to the neocortex where they are stored for the long term.»
Evidence suggests that when procedural memory is impaired, children may have math disability, dyslexia, or developmental language disorder,
though declarative memory often compensates to some extent,» Ullman says.
Ullman and Evans say that learning math likely depends on the brain's two primary learning and memory systems — not just procedural memory, but
also declarative memory, where conscious knowledge is learned.
Here, we asked whether application of microstimulation targeted to the entorhinal afferents into hippocampus could
enhance declarative memory function in humans.
Procedural memories are those that involve motor and perceptual skills,
while declarative memories are those that involve the memorization of facts.
«This would be so -
called declarative memory, which refers to memories which can be consciously recalled, such as facts or knowledge,» the authors conclude.
Episodic memory, together with semantic memory — the ability to understand meanings and concepts — allows beings to recall facts and knowledge, an ability known
as declarative memory.
There are different types of memories: Long -
term declarative memories, which H.M. could no longer form; short - term memories which H.M. still possessed to a degree; and motor memories, such as recalling how to ride a bike, which H.M. never lost.
Although the MTL has indeed proved critical
for declarative memory — the recollection of facts and events — the region remains something of a black box.
Prior research by the same researchers on the effects of glucose and caffeine consumption showed improvements
in declarative memory and attention span with no significant alteration of the subjective state of the individuals.
When scientists compared the two groups of cocaine users, they observed pronounced differences, mainly in specific neuropsychological functions such as sustained attention (required for performing long tasks, such as completing a questionnaire), working memory (used in specific actions, for example, a waiter remembering the order of each table until the time comes to deliver the orders) and
declarative memory (storing and retrieving data after a period of time).
Declarative memory is your memory for facts, like the Spanish word for dog.
Additionally,
declarative memory's role in neurodevelopmental disorders has implications for diagnosis.
Declarative memory, rooted in the hippocampus, could help the brain pick up the slack for diverse impairments across many developmental disorders such as autism and obsessive - compulsive disorder
In fact, when you use
the declarative memory system, it doesn't help you, it harms you,» Finn says.
Given the power and flexibility of
declarative memory, it could enable compensation in many other contexts.
Under this theory,
declarative memory, which stores knowledge and facts, would be more useful for learning vocabulary and certain rules of grammar.
It now appears that a single brain system —
declarative memory — can pick up slack for many kinds of problems across multiple neurodevelopmental disorders.
Helping Patients Recognizing the compensatory role of
declarative memory could improve treatment in several ways.
Overall, we believe that a better understanding of
declarative memory could yield new ways to both identify and treat people with neurodevelopmental disorders.
Finally, if
declarative memory underlies compensation, then those individuals with stronger declarative memory should compensate more effectively.
We gave the children several tests, including an assessment of
declarative memory, which incorporated tasks such as recalling pairs of words after a delay.
In brain anatomy terms,
the declarative memory of Indiana Jones in the snake pit is laid down by the hippocampus, a long, curved ridge located next to the amygdala.
There are systems devoted to explicit or
declarative memories, like your childhood recollection of that pet python, and systems devoted to procedural memories that usually involve physical movement, like learning how to ride a bicycle.