Grab it or not? Measuring avoidance of spiders with touchscreen-based hand movements

Area of Science:

• Psychology
• Human-Computer Interaction
• Behavioral Science

Background:

• Previous research indicates automatic spider avoidance in humans, especially those with phobias.
• Existing studies often use symbolic movements, not naturalistic ones, to assess avoidance behaviors.

Purpose of the Study:

• To investigate approach-avoidance tendencies towards spiders using naturalistic movements on a touchscreen.
• To examine if fear levels influence these approach-avoidance behaviors.

Main Methods:

• An approach-avoidance task was designed using a touchscreen for 86 female participants.
• Participants performed hand and arm movements to interact with images of spiders and neutral objects (leaves).
• Movement times (pre-movement, grabbing, dragging) were recorded to assess approach and avoidance behaviors.

Main Results:

• Avoidance of spiders was confirmed through longer pre-movement and grabbing times, particularly in highly fearful individuals.
• A counterintuitive spider-approach tendency emerged during dragging, with faster movements to pull spiders closer than to push them away.
• This mixed pattern suggests complex responses to spider stimuli.

Conclusions:

• Touchscreen-based tasks are effective for assessing nuanced approach-avoidance tendencies.
• Spider fear elicits both avoidance and approach behaviors, warranting further investigation.
• Future research should explore the underlying mechanisms of these mixed responses.