The Subjectivity of Human Memory
Our experiences are recorded by the brain through sensory input, but memories are not stored as exact replicas of events. Instead, human memory functions as a subjective reconstruction. When we recall a memory, the brain reconstructs it using fragments of images, emotions, and our personal interpretation of facts, all of which are influenced by the passage of time, creating a new version of the event.
Understanding Memory Reconstruction
Jesús Molero, director of Balance Psicología, explains, “Human memory is not an accurate record of what we saw or what occurred. It does not function like a hard drive. Instead, it is a re-creation based on associations where, every time we remember something, the neurons revisit that scene.” This suggests that memory is not static; it undergoes regeneration upon each recall.
According to Beatriz Martínez, clinical psychologist and director of Alumbra Psicología Burgos, emotions play a critical role in how we remember events. “The same event can be recalled very differently based on individual feelings and sensations at the time of remembrance.” Furthermore, the brain tends to fill in gaps with imagination when recalling an event, making initial memories more vivid but progressively losing detail over time.
The Role of the Hippocampus
The hippocampus is crucial for recording sensory details, but as time passes, this information diminishes, while emotional aspects remain more pronounced. Martínez notes, “Memory is reconstructed and influenced by our personal values, identity, emotions, and tastes.” For example, she references the song Memória by Rosalía to illustrate how memories are reimagined through various versions of ourselves over time.
Adaptation and False Memories
Molero emphasizes the adaptive nature of memory: “The brain reconstructs memories based on what might be needed for personal control, protection, and comfort, which helps to avoid uncertainty.” Memory operates through a process called reconsolidation, which means that every time we recall something, slight alterations may occur based on current circumstances.
In studies published in Frontiers in Psychology and Scientific Reports, findings indicate that emotions can influence which parts of an event are remembered or forgotten. Those with stronger semantic memory, linked to prior knowledge, are more prone to generating false memories, while individuals with robust episodic memory, which focuses on personal experiences, are less likely to make these errors.
Filling in Memory Gaps
When the brain encounters memory gaps, it seeks to fill them, which can lead to false memories. Martínez describes this phenomenon: “Imagination helps us fill in missing information. For instance, by repeatedly envisioning a childhood holiday, one can create false memories that blend real experiences with imagined ones.”
The Impact of Repeated Exposure
Interference also contributes to false memories. If an individual is frequently exposed to a particular narrative or discussion about an event, confusion between actual events and imagined details can arise. This overlap leads to blending of different experiences over time.
Memories and Personal Identity
The way we perceive our memories significantly impacts our sense of identity and personal security. Martínez asserts that memories affect us, but they do not define us: “Our identity is a narrative influenced by others' perceptions. How we relate to our memories is more crucial than the type of memory itself.”
Molero adds, “One primary function of false memories is to maintain a person's identity, which often leads to modifications based on current experiences.” He further describes the principle of congruence, emphasizing that individuals naturally seek a consistent and stable identity, illustrating how adaptive modifications of memories support personal coherence.
