The Change Thermostat: Amygdalas & Respecting Diverse Tolerance Levels Posted 3 years ago Tagged Aidan McCullen Aidan McCullen Blog Aidan McCullen Undisruptable Business Transformation Change Change Management Fear of Change Transformation Transforming Legacy Organizations Fear is a construct of the mind, fed by our experiences, upbringing, genes and more. Because fear is subjective, each of us experiences fear in different ways.