The Roots of Thinking
The Roots of Thinking is Sheets-Johnstone's 1990 book developing the evolutionary and paleo-anthropological dimensions of her framework. Published nearly a decade before The Primacy of Movement, it established the argument that hominid cognitive capacities evolved from and remained grounded in bodily activity. Drawing on hominid paleoanthropology, primate studies, and linguistics, she traced how specifically human cognitive achievements — tool-making, counting, language, representational thinking — grew from kinesthetic roots that were present in human ancestors long before symbolic thought emerged. The book argued that the distinction between 'lower' bodily intelligence and 'higher' abstract thought is a philosophical inheritance without empirical foundation.
In the AI Story
The book developed through close engagement with the paleoanthropological record, particularly the evidence of tool-making by early hominids. Sheets-Johnstone argued that tool-making is a kinesthetic achievement — that the capacity to modify a stone into a cutting edge requires not just conceptual planning but the bodily intelligence to coordinate hand, eye, force, and material response. This kinesthetic intelligence is visible in the archaeological record and represents the substrate from which later symbolic capacities grew.
The evolutionary argument has been strengthened by subsequent research on embodied cognition, mirror neurons, and the motor origins of language. Michael Arbib's work on the mirror system hypothesis of language evolution, for instance, converges with Sheets-Johnstone's argument that linguistic capacity emerged from motor capacities for gesture and vocal coordination. Neuroscientific studies of tool use have shown that skilled tool-makers activate brain regions that overlap with those used in language processing, supporting the claim that symbolic and kinesthetic intelligence share evolutionary origins.
For the AI discussion, The Roots of Thinking is essential because it grounds the argument that cognition is evolutionarily kinesthetic — that the capacities large language models simulate through statistical pattern-matching on linguistic data were built through millions of years of bodily engagement with the world. The book provides the long-time-scale view that makes Sheets-Johnstone's framework something more than phenomenological assertion: the empirical record of human cognitive development shows that thinking has always been something bodies do.
Origin
Sheets-Johnstone wrote the book during the 1980s, drawing on decades of interdisciplinary research and her own work as a dancer and dance phenomenologist. It was published by Temple University Press in 1990 and established the evolutionary dimensions of her framework that she would later integrate with phenomenological and developmental arguments in The Primacy of Movement.
Key Ideas
Tool-making as kinesthetic achievement. The fabrication of stone tools requires bodily intelligence that the archaeological record makes visible in hominid history.
Counting originates in bodily enumeration. Early numerical capacity emerged from the kinesthetic act of pointing, tallying, marking — practices that persist in the use of fingers for counting.
Language grew from gesture. Linguistic capacity emerged from motor capacities for gestural and vocal coordination, retaining its kinesthetic substrate even as it became symbolic.
Thinking is a phylogenetic inheritance. The cognitive capacities available to modern humans were built across evolutionary time through bodily engagement with the world.
No sharp discontinuity. Rather than a clean break between animal and human cognition, the record shows gradual elaboration of capacities that were kinesthetic from the beginning.
Appears in the Orange Pill Cycle
Further reading
- Sheets-Johnstone, Maxine. The Roots of Thinking (Temple University Press, 1990).
- Arbib, Michael. How the Brain Got Language (Oxford, 2012).
- Donald, Merlin. Origins of the Modern Mind (Harvard, 1991).