Pace setting as an adaptive precursor of rhythmic musicality

Area of Science:

• Evolutionary biology
• Neuroscience
• Anthropology

Background:

• Human musicality's evolutionary origins remain debated.
• Existing theories struggle to explain music's adaptive advantage.
• Rhythm is a key component of musicality, suggesting a need to explore its precursors.

Purpose of the Study:

• To propose endurance locomotion (EL) as an adaptive precursor to rhythmic musicality.
• To investigate the role of pace-setting in EL as a foundation for musical rhythm.
• To explore how EL adaptations may have contributed to the evolution of music.

Main Methods:

• Theoretical modeling based on evolutionary principles.
• Analysis of hominin adaptations for efficient locomotion.
• Examination of the sensory and reward mechanisms associated with sustained physical activity.

Main Results:

• Hominin evolution favored adaptations for efficient endurance locomotion (EL).
• Pace-setting in EL required and rewarded the perception and maintenance of rhythmic patterns.
• These rhythmic patterns and associated rewards could have been co-opted for proto-musical functions.

Conclusions:

• Endurance locomotion (EL) provides a plausible evolutionary pathway for rhythmic musicality.
• The ability to set and maintain a pace during EL served as a crucial adaptive precursor.
• Rhythmic perception and reward mechanisms evolved in the context of locomotion may underpin human musicality.