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2.4 Encoding Memories

Syllabus
2025
Topic
2.4
Level
—

Learning objectives

2.4A—Explain how different encoding processes work to get information into memoryExplain how different encoding processes work to get information into memory.• Encoding involves processes and strategies to get information into memory. How information is encoded can determine how effectively information is stored and retrieved.• Mnemonic devices, such as method of loci, are processes that aid in encoding information into working and long-term memory.• Encoding can be improved by the process of grouping information together into meaningful chunks (“chunking”), categories, or hierarchies.• The spacing effect is a process that can cause significant differences in encoding and memory consolidation depending on whether the information is encoded all at once (massed practice) or distributed over time (distributed practice).• Encoding processes can be affected by the order of how the information is presented, called the serial position effect. The serial position effect predicts that information presented at the beginning of a list (primacy effect) or the end of a list (recency effect) will be more memorable than information presented in the middle of a list.

Encoding Determines What Memory Can Use

Encoding uses processes and strategies to get information into memory. Because later storage and retrieval can operate only on what was encoded, the organization, associations, timing, and order used during learning can change later remembering.

Encoding strategy How it organizes information
Mnemonic device Adds a memorable association; method of loci links information with imagined locations
Chunking Groups separate items into meaningful units
Categories Groups information by shared meaning or features
Hierarchies Nests broad groups and narrower subgroups
Practice pattern Timing Encoding relationship
Massed practice Information encoded all at once Contrasts with spacing over time
Distributed practice Encoding spread across time The spacing effect predicts meaningful differences in encoding and consolidation

The serial-position effect concerns where information appears, not how practice is scheduled. Items at the beginning of a list are more memorable through the primacy effect; items at the end are more memorable through the recency effect; middle items are less favored by either position.

Spacing and serial position are different mechanisms: spacing compares learning all at once with learning over time, while serial position compares beginning, middle, and end locations in a sequence.