Which memory technique aims at enhancing recall through structured systems?

The technique that enhances recall through structured systems is mnemonics. Mnemonics are tools that aid memory by organizing information in a way that makes it easier to remember. They often involve associations, acronyms, visual imagery, or structured formats that create a meaningful connection to the information being learned. This systematic approach not only enhances memory retention but also helps in organizing complex information into more manageable concepts.

For instance, someone might use a mnemonic device like "PEMDAS" to remember the order of operations in mathematics, which stands for Parentheses, Exponents, Multiplication and Division, Addition and Subtraction. By turning abstract information into a structured framework, mnemonics leverage existing memory pathways and cognitive strategies, making recall more efficient and effective.

This stands in contrast to the other options like hypnosis, which involves altering consciousness; cognitive interviewing, which is a method to gather information from memory but does not specifically restructure memory; and flashbulb memory, which refers to highly detailed and vivid memories of significant events rather than a structured technique for enhancing memory recall.