Memory Manipulation: How and Why People Change Their Memories

Summary: People shape their recollection of past events at three processing levels, and these influences usually operate unconsciously and automatically.

Source: RUB

People remember past experiences through the episodic memory system, which does not produce photographic reproductions but reconstructs scenes. In a theoretical paper, Dr. Roy Dings and Professor Albert Newen from the Institute of Philosophy II at Ruhr-Universität Bochum describe how episodic memories are constructed and how the narrative self modulates that construction at three distinct levels.

Their study appears online in Review of Philosophy and Psychology and explains why our memories often reflect a self-consistent story rather than an exact record of what happened. “We frequently shape memories of important events to fit our self-image,” says Albert Newen.

Memories as constructive reconstructions, not photographs

Adults tend to retain episodes that carried strong emotional weight—highly positive or highly negative occasions such as a memorable holiday, a driving test, or a wedding. Rather than storing a precise snapshot, the brain preserves a sparse memory trace that, when reactivated, is enriched with background knowledge and interpretive frameworks. As Roy Dings puts it, “we make the past world the way we like it.”

According to the Bochum research team, episodic recall is a generative process: a stimulus reactivates a memory trace, and that trace is subsequently augmented by semantic background knowledge, expectations, and the person’s narrative perspective. The interplay of these elements produces the vivid memory images people report and the way they then describe those experiences.

The narrative self and automatic shaping of memory

The researchers emphasize that the narrative self—the aspects of identity people consider central and worth telling—plays a central role in how memories are reconstructed. This shaping happens mostly outside conscious awareness: we selectively encounter cues, draw on particular background knowledge, and choose descriptive frames that support our self-narrative.

The Bochum constructive model of episodic recall

In the Bochum model, a memory is triggered when a cue activates a stored trace: for example, a wedding invitation pinned to a board may activate a trace tied to the wedding table. That trace is typically sparse on its own. Semantic memory and general background knowledge supply the additional details that convert the trace into a rich mental scene—perhaps the bride’s greeting, the music, or the atmosphere—and this scene is what the person recounts.

Three levels at which the narrative self modulates memory

The construction process can be divided into three stages—input, process, and output—and the narrative self can influence each stage.

1) Input selection: People tend to seek out cues that support positive memories and avoid cues that trigger painful or discrepant memories. Consciously or not, someone might display a wedding photo on their desk while steering clear of people or places associated with negative events.

2) Process modulation: The available background knowledge and interpretive frames drawn upon to fill out a sparse trace are themselves shaped by the narrative self. Which facts, expectations, and scripts are brought to mind determines the content and emotional coloring of the reconstructed memory.

This shows some photographs, an alarm clock and white roses
Adults mainly remember significant experiences that were linked to very positive or very negative feelings, such as a unique experience on holidays, a driving test or a wedding. Image is in the public domain

3) Output framing: The way a reconstructed scene is described can range from highly concrete to broadly abstract. A person might recall the exact opening lines of a bride’s speech or instead describe the moment as “the start of two families coming together.” Abstract descriptions tend to promote an observer perspective—recalling oneself as an object in the scene—which reduces the intensity of felt emotions. The chosen level of description therefore affects not only the reported content but also how the event is experienced and stored afterward.

Taken together, these three levels show how the narrative self can bias memory toward protecting a positive self-image and softening or reinterpreting negative experiences that clash with one’s identity. “Essentially, this means we shape our memories so that they support our positive self and mitigate challenges posed by discordant memories,” Albert Newen concludes.

About this memory research news

Author: Julia Weiler
Source: RUB
Contact: Julia Weiler – RUB
Image: The image is in the public domain

Original Research: Open access. “Constructing the Past: The Relevance of the Narrative Self in Modulating Episodic Memory” by Albert Newen et al., Review of Philosophy and Psychology


Abstract

Constructing the Past: the Relevance of the Narrative Self in Modulating Episodic Memory

Episodic memories are not mere reactivations of stored experiences but the result of an active construction process that begins with a memory trace. Episodic recall relies on scenario construction: the trace is enriched by relevant semantic knowledge and interpretive frameworks to produce a coherent mental scene. Within this generative framework, the role of the narrative self has been less well understood. Some philosophical positions treat the narrative self as a mere attributed entity without causal power. In contrast, this work characterizes the narrative self in detail and demonstrates how it causally influences episodic memory by shaping scenario construction at three stages: the input (which cues are attended or avoided), the process (which background knowledge and interpretive frames are recruited), and the output (the level of abstraction used to describe the event).