When we think of language and learning, we usually imagine a speaking child and the brain as the center of development. But this view falls short. In fact, the origin of human intelligence is not isolated in the head, but begins with the development of the hand: since the beginning of mankind, the targeted use of the hands has shaped the brain - every movement, every grip and every touch lays the foundation for language, thinking and creativity.
The origin of human intelligence does not lie in the brain, but in the use of the hand
Our hands are not just tools - they are an engine of human development. Long before there were words, unplanned actions and purposeful actions shaped thought, created connections in the brain and opened up new ways of relating to the world. In evolution, the human brain did not grow in isolation, but in interaction with the hand.
The resulting increase in tool use required cooperation and communication to share knowledge, significantly expanding brain structures for planning, language and complex thinking. In the course of human evolution, this gave rise to two sophisticated strategies for solving complex problems and actively shaping the environment that are unique to humans.
1. tool use: many different tools for countless purposes and functions. Humans can design, manufacture and use many different tools - from hammers and levers to complex cutting tools or modern technical devices and machines. Thanks to the variety of tools and their flexible use, people can master countless tasks and solve problems creatively.
2. language: many different ways of communicating, not just verbally. Language is so much more than just spoken words. It encompasses a variety of forms of communication based on emotional and formal systems of abstract codes and symbols, including a universal non-verbal body language of facial expressions, gestures and gestures. Human language requires cooperative relationships, the exchange of information and the sharing of cultural contexts through a common „encoding and decoding scheme“, i.e. the ability to understand and convey meaning.
Today, however, the origin of human intelligence and language in the skilled use of hands has been largely forgotten. Modern childhood education and school systems give hands far less space than would be necessary for healthy cognitive, social and emotional development for learning, relationship building and language, especially to effectively support children with developmental delays or learning disabilities.
Manual intelligence: from doing to thinking and acting
These two strategies are also reflected in children's development: because linguistic understanding is always preceded by a primary, non-verbal understanding. This develops before and independently of language, as Geoffrey Waldon observed, fed by diverse physical experiences, sensorimotor explorations and direct contact with the environment. Only when a child has mastered these mental „tools“ of non-verbal understanding by exploring their world can they understand and use the tools of verbal language in a meaningful way.
The targeted use of the hands, i.e. grasping, exploring, manipulating and shaping things, is not an incidental motor milestone, but a central force that makes thinking possible and made it possible in the first place. The „clever hands“, or manual intelligence, are directly linked to cognitive and linguistic development. Language is therefore not a purely linguistic phenomenon, but a result of the interplay between movement and active experiences in conjunction with the perception of patterns, relationships and understanding of symbols.
This early, non-verbal understanding is inextricably linked to the physical and sensory foundations of development. Before children can use language or complex tools, they must learn to control their bodies in a targeted manner, coordinate movements and process sensory impressions.
When development needs more support: It is precisely here that many children with special needs, autism or autistic-like behaviors often show initial differences in sensory regulation, body awareness and motor planning - primary challenges that can severely impair the foundation on which all later cognitive, language and social skills are built.
The hand: the brain's first teacher
Humans consist of a body, a head and 4 limbs. Our legs enable us to move and carry us through the world like a reliable means of transportation - they are almost like our horse that can take us anywhere. Our human part rides on top, so to speak: our body with heart and head with many of our senses, and our hands, which are at the end of a complex biological kind of crane consisting of shoulder, upper arm, elbow, forearm and wrist. This makes the hand the last link of a biological erector that can precisely place our hand in space, stabilize it and move it to where we want it to be, so that it does what we expect it to do, such as take, hold, lift, turn, pull and make the finest adjustments, often unconsciously and in a highly coordinated manner.
Our hands can and do so much for us: touch, grasp, feel, hold, manipulate, stroke, but also push, pull, caress, scoop and carry. They can wave, point and make gestures or signs. We use our hands to touch, feel and sense whether something is rough or smooth, hot or cold, sharp or dull. We hold a child's hand when we cross the street. We caress a loved one. Our hands play an important role in who we are and how we see ourselves.
In terms of evolutionary history, walking upright on two legs was a huge turning point: it freed the hands from their locomotion function and opened the way to tool use, gestures and complex interaction with the environment and communication with other people. In our cerebrum, a disproportionately large area is reserved for the control and perception of the hands. Together with the mouth, the hands, and especially the fingertips, have the highest density of receptors - no other part of the body provides so much precise sensory information.
When development needs more support: Some children are constantly on their feet and on the move, running around tirelessly and hardly ever get to do anything with their hands. It is crucial for their development to direct their attention to their hands. Grasping and active activity open up new ways of learning. These children therefore need targeted support to shift their kinetic energy from their legs to their heads and into doing things with their hands in order to pave the way for concentration, language and thinking.
Range and spatial awareness
We can also extend our hand beyond its normal reach by stretching our shoulder and arm forward, or reach forward to grasp something that is beyond our reach close to our body, or we can lean back to reach far behind us. There are occasions when we need to bring our hand behind our head, for example when we brush our hair, or bend down and bring our hands to our foot to put on or take off our shoes.
The hand as a universal tool
In fact, the human hand itself is the most amazing tool, precisely because it is so unspecialized and that is why we can use it in so many ways for an infinite variety of complex tasks. With its opposable thumb, a hand can pick up large and small objects and handle heavy or complicated tools. Our hands can perform gross power work, such as chopping wood, carrying heavy loads, digging with a shovel, swinging an axe, drilling through concrete with a jackhammer or smashing a railroad post with a sledgehammer, or performing microscopically precise movements, such as threading a thread into the eye of a needle, playing the violin or performing root canal treatment. This universality is possible because the hand is not specialized in one function, but can constantly acquire new skills through experience. The central principle is: There is almost nothing that a hand cannot learn - provided it is given the opportunity to practise it extensively.
Talking with your hands
The development of the hand is so closely interwoven with the development of the brain that early in human history the targeted use of the hands led to conscious perception and differentiated thinking. Making or using tools required not only skill, but also cooperation and communication, initially by means of non-verbal gestural communication, which gradually developed into verbal symbolic language.
Our hands are constantly switching between executive (to produce or change something), explorative (explore, feel) and expressive (gestural, artistic, communicative) activities. They not only shape our cognitive development, but also influence our feelings and relationships, language and creativity. When a child builds, sorts, shapes, strokes or paints signs, it not only trains motor skills and perception, but also the neural networks that are later crucial for language and symbolic thinking.
Learning to speak begins with non-verbal gestures
A child's language development does not begin with spoken words either, but with Gestures and hand signals. Pointing, waving, giving and taking are a child's first „sentences“ - non-verbal acts that lay the foundation for verbal communication. The hands are therefore the concrete precursor and at the same time the link between action and language. Just as we also use our hands to greet each other depending on our culture, e.g. by shaking hands, joining hands, touching fists, high-fives, etc. When we converse, our hands are an important part of who we are and what we say, and most people use their hands when speaking.
The hand speaks to the brain as the brain speaks to the hand
From an early age, it becomes clear how closely the development of language and motor skills are linked. When a child learns to grasp things purposefully, turn them, drop them or put them into each other, they also begin to grasp meanings: „What happens when I do this?“ The child makes its first hypotheses about cause and effect and develops an understanding of categories, functions and differences, i.e. the basis for any later understanding of language.
In this way, there is a mutual reinforcement between the sensorimotor experience, the targeted use of the hand and the development of language and thinking. This connection is confirmed by recent neuroscientific findings on the hand-brain connection: The use of the hands activates the same brain regions that are responsible for symbolic thinking, representation and language processing (Gallese & Lakoff, 2005; Pulvermüller, 2005; Rizzolatti & Sinigaglia, 2010). In addition, studies in developmental psychology show that motor experiences and early ability to act are closely linked to language acquisition (Iverson, 2010). It is therefore high time to overcome the idea that intelligence and learning begin with explanations or teaching words: Intelligence and learning, as well as verbal language, begin with relationship, movement, - and with the hands.
Neuroscientifically, this connection is clearly evident in the fact that the hands and face together occupy large areas in the sensory-motor cortex, as both are key instruments for communication. Hands and face together take up almost half of the available „brain map“ in the somatosensory and motor cortex.
What that means:
- Hands are not just tools, but highly sensitive antennas.
- Every movement and every touch trains huge neuronal networks.
- Activities with the hands act like „brain jogging“, especially in early childhood.
The importance of grasping for cognitive development
Grasping is one of the first and most important skills a child learns. It forms the basis for more complex cognitive and motor skills and is crucial for the development of perception, fine motor skills and later learning, including learning to understand and speak. Through active grasping, the child not only learns to explore and understand its environment through sensory-motor experiences, but also begins to understand cause and effect, size and shape as well as space and time. These experiences form the basis for the development of more complex thought and action processes.
The human hand has an impressive biomechanical repertoire of movement and control, from the finest individual movements to powerful grasping. In addition, our hands are very sensitive to touch: they can perceive the smallest differences in surfaces and shapes, allowing us to explore the world in a differentiated way. Another human characteristic is the mobility of the shoulder and upper arm, which allows each hand to reach almost any point within an imaginary circle, the center of which is the movable shoulder. This mobility leads to a complex spatial representation of the arms and hands in the brain and thus promotes spatial thinking and coordination.
When development needs more support: Some children are very sensitive to touch, and autistic children often use their hands primarily to touch and feel surface textures, which means they sometimes get stuck on their sensory interest: feeling and predictably, often rhythmically, feeling sensory aspects of their environment, such as a kind of stroking with skin, eyes or ears, and need our help to make new sensory-motor experiences with their hands, recognize patterns and learn to connect different elements with each other.
This is a small excerpt from my new book ‚Learning to Learn with Autistic Children: From Grasping to Grasping‘, which will be published in fall 2026.
