The effects of spatial representation on memory for verbal navigation instructions

Area of Science:

• Cognitive Psychology
• Human-Computer Interaction
• Spatial Cognition

Background:

• Memory for navigation instructions is crucial for effective wayfinding.
• The role of mental spatial representation in memory recall is not fully understood.
• Visual display properties (2D vs. 3D) may influence cognitive load and memory.

Purpose of the Study:

• To investigate how mental spatial representation affects immediate verbatim memory for verbal navigation instructions.
• To determine if promoting a three-dimensional (3D) mental representation impacts memory recall compared to a two-dimensional (2D) representation.
• To examine the influence of display type (diagrams, physical models) and depth cues on this relationship.

Main Methods:

• Three experiments were conducted using verbal navigation instructions presented via different visual formats (2D diagrams, 3D models, with/without depth cues).
• Participants heard, repeated, and manually followed navigation instructions on a grid.
• Experimental conditions manipulated the requirement for participants to form either a 2D or 3D mental representation of the space.

Main Results:

• Memory for navigation instructions was significantly reduced when participants were required to form a 3D mental representation compared to a 2D representation.
• This effect occurred regardless of the display format or the presence of depth cues, even when the verbal instructions were identical.
• Performance declined when navigation involved movements across multiple matrices (3D) versus within a single matrix (2D).

Conclusions:

• The mental representation of space is a critical factor influencing immediate verbatim memory for navigation instructions.
• Cognitive load associated with constructing and maintaining a 3D mental model can impair memory recall.
• Future research should explore the implications for designing effective navigation systems and training programs.