Dramatic changes to well-known places go unnoticed.

Area of Science:

• Cognitive Psychology
• Neuroscience
• Urban Studies

Background:

• Familiarity with urban environments does not guarantee detailed recall of landmarks.
• Previous research suggests memory representations can be gist-based.

Purpose of the Study:

• To investigate the level of detail in memory for familiar real-world urban scenes.
• To examine how declarative memory and eye-tracking correlate with detecting landmark modifications.

Main Methods:

• Utilized declarative memory tests and eye-tracking.
• Assessed participants' ability to identify alterations in familiar Toronto landmarks and scenes.
• Monitored visual exploration patterns during scene viewing.

Main Results:

• Participants were largely unable to detect modifications to landmarks (size, features, context).
• Eye-tracking showed changes in overall visual exploration, but not specific areas, related to perceived modification.
• Familiar landmarks appear to be represented at a global or gist level, not a fine-grained level.

Conclusions:

• Memory for highly familiar urban landmarks is predominantly gist-based.
• Findings support a unified view of gist memory across verbal and spatial domains.
• Implications for understanding hippocampal-neocortical interactions in memory formation and retrieval.