When gathering information from the environment, the brain must 3. organize information according to schema.
Schemas are cognitive frameworks that help organize and interpret information based on existing knowledge. This allows the brain to efficiently process and store new information by relating it to what it already knows. While mnemonic devices (1) can aid in memory, giving all information equal priority (2) is generally impractical because some information is more relevant or salient than others, and remembering every detail (4) is often impossible due to cognitive limitations.