Space and Motion Stimulus-Response Correspondence (SRC) Effects in a Single Task

Area of Science:

• Cognitive Psychology
• Human-Computer Interaction
• Neuroscience

Background:

• Stimulus-response correspondence (SRC) effects influence human performance.
• Spatial SRC (congruency between stimulus location and response position) and motion SRC (congruency between stimulus motion and response movement) are known SRC phenomena.
• The independence of these two SRC effects remains underexplored.

Purpose of the Study:

• To investigate whether spatial and motion SRC effects are independent.
• To examine the interaction between spatial and motion SRC within a single experimental task.

Main Methods:

• Participants responded to stimulus color by moving joysticks left or right.
• Stimuli varied in both motion (leftward/rightward) and location (left/right screen side).
• Reaction times (RTs) and accuracy were analyzed, including RT distribution and accuracy delta plots.

Main Results:

• Both spatial and motion SRC effects were observed.
• An interaction between spatial and motion SRC was found, specifically in reaction times.
• RT distribution and accuracy delta plots suggested distinct underlying processes for each SRC effect.

Conclusions:

• Spatial and motion SRC are distinct phenomena.
• These two SRC effects, while interacting, rely on separate cognitive mechanisms.
• Findings contribute to understanding the multifaceted nature of stimulus-response compatibility.