EN 
DE 
When we look at a rough, heavily impasted surface — think Van Gogh's swirling strokes or the cracked plaster of ancient frescoes — the brain does not simply register colour and form. Mirror neuron circuits linked to the somatosensory cortex activate, simulating the sensation of actually running a finger across the surface.
"This is why a Rembrandt glazed in transparent oils can feel silky at a distance, while a Lucian Freud feels almost uncomfortably raw."
Smooth Textures
Slow the heart rate and invite contemplation. These surfaces provide a sense of safety and fluid continuity.
Abrasive Textures
Heighten alertness and can provoke mild defensiveness. They demand active engagement and sensory processing.
Clinically, art therapists exploit this response: coarse, tactile media like clay or rough-textured canvases help patients with trauma reconnect with bodily sensation in a controlled, safe setting.
Advice
"Choose artwork for healing spaces with intentional surface quality — not only colour."