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The Sensory Soundness Lexicon 

A foundational listening library, read by Kerry M. Thomas 

“Language is the mathematics of the mind, where the complexity of communication is solved through the simplicity of understanding. Every word is like a number, each sentence an equation. Language shapes perception. Perception shapes expectation. Expectation shapes outcome. And one misused word can alter the entire equation.” kmt

The Sensory Soundness Lexicon is a curated collection of terms developed to describe how horses perceive, process, and respond to their environment, herd, and human interaction.

These terms were not created to label behavior, but to give language to the underlying sensory, emotional, and neurological processes that drive it.

Each entry is read in Kerry M. Thomas’s voice to preserve the nuance, intention, and meaning behind the language — offering listeners a direct connection to the framework as it was developed.

This Lexicon is intended as a living reference for equine professionals, educators, welfare advocates, and serious students of the horse.

HOW TO USE THIS LEXICON

  • This is not a course and not meant to be consumed in order. 

  • Return to it as questions arise. 

  • Listen when something doesn’t quite make sense yet.

  •  Let the language shape how you observe the horse.

A View From The Hoof
00:00 / 00:12
A.R.M Anticipatory Response Mechanism
00:00 / 00:43
Adjunct Horse
00:00 / 00:33
Associative Aspect
00:00 / 00:12
Bachelor Herd
00:00 / 00:17
Block
00:00 / 00:13
Bridge
00:00 / 00:13
Carrying the World Alone
00:00 / 00:16
Cushion
00:00 / 00:16
Emotional Architecture
00:00 / 00:12
Emotional Camouflage
00:00 / 00:29
Emotional Fluency
00:00 / 00:11
Exposure
00:00 / 00:25
Exposure Response
00:00 / 00:21
GHD Group Herd Dynamic
00:00 / 00:28
Harmony and Contentment
00:00 / 00:13
Herd Dynamic Profiling
00:00 / 00:20
IHD Independent Herd Dynamic
00:00 / 00:28
Independent Nature
00:00 / 00:22
Interpretive Ratio
00:00 / 00:17
Mutual Dependency
00:00 / 00:12
Outsourcing
00:00 / 00:09
Outsourcing
00:00 / 00:10
PPI
00:00 / 00:15
Perception Compression
00:00 / 00:24
Performance vs. Survival
00:00 / 00:13
Psychological Interruption
00:00 / 00:16
Self Awareness
00:00 / 00:16
Sensory Egg
00:00 / 00:09
Sensory Lead Change
00:00 / 00:19
Sensory Processing
00:00 / 00:28
Sensory Soundness
00:00 / 00:28
Sensory Zones
00:00 / 00:14
Sensory Zones 1
00:00 / 00:08
Sensory Zones 2 & 6
00:00 / 00:11
Sensory Zones 3 - 5
00:00 / 00:09
Sensory Zones 4
00:00 / 00:09
Shared Awareness
00:00 / 00:13
Shared Leadership
00:00 / 00:11
Six Step Sequence
00:00 / 00:19
Spatial Awareness
00:00 / 00:20
“The Learning Library is supported by individuals and organizations who believe understanding is the foundation of welfare. Partnership inquiries are welcomed.”
Learning Library Stewards 
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Helping humans understand horses as nature created them, so they can thrive in the world we've created for them.

For nearly three decades, Kerry has walked this road alone, building, teaching, and sharing the emotional and behavioral science that connects horses and humans at their deepest levels. What began as a personal calling has become a global movement, now recognized by the Royal Dutch Equestrian Federation, universities, and equestrian professionals around the world.

Join the movement to bridge the gap between the natural herd dynamic and the domesticated world. Stay in the know and join as a site member today. 

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©2026 by Sensory Soundness. 

Thomas Herding Technique. Formerly DBA: THT Bloodstock

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