Sensus Communis: Some Perspectives on the Origins of Non-synchronous Cross-Sensory Associations

Area of Science:

• Developmental Psychology
• Cognitive Neuroscience
• Sensory Integration

Background:

• Adults easily form cross-modal associations (e.g., shapes and sounds).
• Research on infant cross-modal correspondences is limited, especially for infants under one year old.
• Existing studies suggest newborns can match stimuli across senses, but underlying mechanisms remain unclear.

Purpose of the Study:

• Investigate if infants can make cross-sensory correspondences from birth.
• Determine if real-world experience is necessary for certain cross-modal associations.
• Explore hypotheses on the emergence and development of cross-sensory associations and their relation to language acquisition.

Main Methods:

• Review of existing literature on infant cross-modal perception.
• Exploration of hypotheses regarding the origins and mechanisms of cross-sensory development.
• Discussion of Aristotle's concept of a "sixth sense" and the role of movement.

Main Results:

• Evidence suggests newborns possess some cross-modal matching abilities.
• The precise origins and developmental pathways of these abilities require further investigation.
• Movement is proposed as a potential mechanism underlying cross-sensory perception in infants.

Conclusions:

• Infants may possess innate capacities for cross-sensory correspondences.
• These early abilities could be foundational for later cognitive and language development.
• Further research is needed to elucidate the mechanisms and developmental trajectory of infant cross-modal perception.