One spatial map or many? Spatial coding of connected environments.

Area of Science:

• Cognitive Psychology
• Neuroscience
• Spatial Cognition

Background:

• Understanding how humans create mental maps of large environments is crucial.
• Previous research suggested joint exploration leads to integrated spatial representations.

Purpose of the Study:

• To investigate human spatial representation formation in connected environments.
• To test the hypothesis that separate learning leads to distinct representations and accuracy costs.

Main Methods:

• Utilized a virtual taxi game to simulate exploration of connected neighborhoods.
• Manipulated learning conditions: joint exploration vs. separate learning followed by connection observation.
• Assessed accuracy in inferring directions between neighborhoods.

Main Results:

• Contrary to hypotheses, participants predominantly formed local spatial representations.
• This tendency persisted regardless of whether neighborhoods were learned jointly or separately.
• An integrated representation was only observed when visible neighborhood distinctions were eliminated.

Conclusions:

• Human spatial encoding shows a strong bias towards local representations.
• Environmental cues significantly influence the formation of integrated vs. local spatial maps.
• Findings align with rodent hippocampal place cell data and hierarchical spatial coding models.