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[[File:EtruscanM-01.svg|EtruscanM-01|thumb]] [[File:Phoenician_mem.svg|Phoenician mem|thumb|left]] [[File:Hebrew_letter_Mem_handwriting.svg|Hebrew letter Mem handwriting|thumb|left]] [[File:Mem-nonfinal_(Rashi-script_-_Hebrew_letter).svg|Mem-nonfinal (Rashi-script - Hebrew letter)|thumb]] [[File:Hebrew_letter_Mem-final_handwriting.svg|Hebrew letter Mem-final handwriting|thumb]] '''Memory''' is a crucial function of the [[human brain]] that involves the encoding, storing, and retrieving of information. It is a complex process that enables individuals to retain knowledge and skills over time, playing a vital role in learning, decision-making, and experience-based adaptation. Memory can be categorized into different types based on duration and nature, such as [[short-term memory]], [[long-term memory]], [[sensory memory]], [[working memory]], and [[episodic memory]], among others.

==Types of Memory==
Memory is often categorized into three main types: sensory memory, short-term memory (or working memory), and long-term memory, each serving a distinct purpose in the processing and storage of information.

===Sensory Memory===
Sensory memory is the shortest-term element of memory. It is the ability to retain impressions of sensory information after the original stimuli have ended. An example of sensory memory is the ability to remember a visual image or a sound for a few seconds after its exposure.

===Short-term Memory===
Short-term memory, also known as working memory, holds information temporarily for analysis and retrieves information from long-term memory. It is believed to have a limited capacity, typically storing information for approximately 20 to 30 seconds.

===Long-term Memory===
Long-term memory refers to the storage of information over an extended period, potentially as long as a lifetime. It is divided into explicit (or declarative) memory, which requires conscious thought—such as recalling facts or events—and implicit (or procedural) memory, which involves skills and routines performed automatically, such as riding a bike or typing on a keyboard.

==Memory Processes==
The processes involved in memory include encoding, storage, and retrieval.

===Encoding===
Encoding is the first step in creating a memory. It involves converting information into a form that can be stored in the brain. Encoding can be influenced by attention, emotions, and the relevance of the information.

===Storage===
Storage refers to the retention of encoded information over time. The strength and duration of memory storage depend on the type of memory and the rehearsal or repetition of information.

===Retrieval===
Retrieval is the process of accessing and bringing into consciousness information stored in memory. It can be affected by various factors, including the context, cues, and the state of mind.

==Factors Affecting Memory==
Several factors can influence memory, including age, stress, sleep, and nutrition. Memory performance can decline with age, but cognitive exercises and a healthy lifestyle can mitigate some of these effects. Stress and sleep deprivation can negatively affect memory, while balanced nutrition and regular physical exercise can improve memory function.

==Memory Disorders==
Memory disorders can result from brain injury, neurological diseases, or psychological conditions. Common disorders include [[amnesia]], where memory loss is the primary symptom, and [[dementia]], which involves severe impairment in memory, communication, and thinking.

==Improving Memory==
Techniques to improve memory include mnemonic devices, rehearsal, chunking, and a healthy lifestyle that includes adequate sleep, nutrition, and physical exercise. Engaging in activities that stimulate the brain, such as puzzles and learning new skills, can also enhance memory capacity.

[[Category:Neuroscience]]
[[Category:Cognitive psychology]]
[[Category:Memory]]

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Prab: CSV import