What types of memory does the brain have?

The brain has several types of memory, which can be classified into different categories:

1. Sensory Memory: This is the initial stage of memory where information from the senses (hearing, touch, smell, taste, and vision) is briefly held for a very short duration, typically just a few seconds. Sensory memory is highly detailed but is out of conscious control^[1].

2. Short-term Memory (Working Memory): This type of memory allows individuals to hold and manipulate information for a short period, generally from a few seconds to a minute. It has a limited capacity, often considered to be around 7±2 items, and is closely related to working memory, which emphasizes the active manipulation of information^[1][2][6].

3. Long-term Memory: This storage space is designed to hold information for a longer duration, potentially for years. Long-term memory can be subdivided into two main categories:
   - Explicit Memory (Declarative Memory): This includes memories that require conscious thought, such as recalling facts and events. It can further be broken down into:

   • Episodic Memory: Related to personal experiences and specific events in time and context.
   • Semantic Memory: Encompasses general knowledge about the world and facts^[1][6].
   • Implicit Memory (Non-declarative Memory): This type does not require conscious thought and includes procedural memories, such as skills and tasks learned through repetition (e.g., riding a bike)^[2][6].

Overall, memory involves complex processes that encompass different types and functions, each associated with various brain regions responsible for encoding, storage, and retrieval of information.