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What should I do if I don't believe I've shared something here before?
Déjà vu, the uncanny feeling of having experienced a situation before, is estimated to occur in up to 70% of the population.
The scientific explanation is still debated, but it may involve a temporary glitch in the brain's memory processing.
Jamais vu is the opposite of déjà vu - it's when a familiar situation suddenly feels unfamiliar or strange.
This can be caused by fatigue, stress, or neurological conditions.
The human brain has an amazing capacity to store information, with estimates ranging from 1 to 2.5 petabytes of data storage potential.
Yet, we often forget minor details or have trouble recalling specific memories.
Memory is highly malleable - every time we recall a memory, the brain reconstructs it, potentially altering or adding new details.
This is why eyewitness testimonies can be unreliable.
The "tip of the tongue" phenomenon, where you know a word but can't quite retrieve it, is caused by a disconnect between recognition and recall in the brain's language networks.
Prospective memory, the ability to remember to do something in the future, relies on different brain regions than retrospective memory.
This is why some people are forgetful about future tasks but have good recall of past events.
The encoding specificity principle states that memories are best retrieved when the context (physical, emotional, or mental state) at the time of recall matches the context at the time of encoding.
The spacing effect demonstrates that information is better retained when study sessions are spaced out over time, rather than crammed into a single session.
This is due to the brain's need for consolidation between learning periods.
Mnemonics, like the "memory palace" technique, can dramatically improve one's ability to recall information by linking it to vivid mental images or familiar locations.
Sleep plays a crucial role in memory consolidation.
Studies show that memories formed during the day are strengthened and reorganized during sleep, especially during REM (rapid eye movement) sleep.
Emotions can have a significant impact on memory.
Highly emotional events, both positive and negative, tend to be better remembered due to the brain's increased activity during emotional experiences.
The "Google effect" refers to the tendency to remember where to find information online rather than the information itself.
This is a result of the brain adapting to the availability of information at our fingertips.
Neuroplasticity, the brain's ability to reorganize and form new connections, allows us to continue learning and forming new memories throughout our lives.
The brain's default mode network, active when we're not focused on a specific task, is thought to be involved in spontaneous mind-wandering and the emergence of creative ideas.
Cognitive biases, such as the "recency effect" (the tendency to remember the most recent information) and the "availability heuristic" (the tendency to judge the likelihood of an event based on how easily it comes to mind), can influence our memories and decision-making.
The "testing effect" demonstrates that actively retrieving information, rather than just re-studying it, leads to better long-term retention.
This is the basis for the effectiveness of practice quizzes and flashcards.
The "misinformation effect" shows that exposure to incorrect information after an event can distort our memories of that event, highlighting the fallibility of eyewitness testimony.
The "Ebbinghaus forgetting curve" illustrates how quickly we forget newly learned information if we don't actively review and reinforce it, emphasizing the importance of spaced repetition in learning.
The "serial position effect" explains why we tend to remember the first and last items in a list better than the middle ones, which is crucial for understanding how we process and retrieve information.
The "reminiscence bump" refers to the phenomenon where people often have better recall of events and memories from their late adolescence and early adulthood, reflecting the importance of this period in shaping our identity and life story.
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