Infants' Response to Pictures of Impossible Objects

Area of Science:

• Developmental Psychology
• Cognitive Science
• Visual Perception

Background:

• Previous research indicates 4-month-olds can differentiate possible and impossible 2D objects.
• The current study investigates if manual exploration reveals similar discrimination in older infants.

Purpose of the Study:

• To determine if 9-month-old infants' manual exploration and social referencing behaviors differ between possible and impossible 2D object images.
• To explore the interrelation between perceptual and manual action systems in infant development.

Main Methods:

• Nine-month-old infants were presented with realistic photographs of possible and impossible cubes.
• Infants' manual exploration, social referencing, and vocalizations were recorded and analyzed.
• Perceptual control stimuli were used for comparison.

Main Results:

• Infants showed significantly more manual exploration of impossible object images compared to possible objects and controls.
• Impossible cube displays elicited increased social referencing and vocalizations.
• These findings suggest a link between visual perception and manual action.

Conclusions:

• Infant visual systems extract structural information from 2D images to analyze 3D configurations.
• This extracted information influences both oculomotor and manual action systems.
• Perceptual and manual action mechanisms are interconnected in early development.