Highly Sensitive Persons (Elaine Aron)

The concept of the Highly Sensitive Person (HSP) was formulated by American psychologist Elaine Aron and published in her book The Highly Sensitive Person (1996). Aron posits that approximately 15-20% of the human population—and many other species—have a nervous system particularly sensitive to sensory, emotional, and relational stimuli.

Characteristics of HSPs: depth of processing (they analyze each experience extensively), over-arousal with intense stimuli (noises, crowds, multiple simultaneous demands), greater emotional reactivity (they feel positive and negative emotions more intensely), high sensitivity to subtleties (they perceive details others don't notice: gestures, tones, relational atmospheres).

It's a trait, not a disorder: Aron is emphatic: HSP is not a pathology or disorder. It is a verifiable neurobiological trait, partly hereditary, present in both sexes (though culturally more recognized in women). It is as adaptive as any other trait—it has advantages (creativity, depth, empathy) and challenges (overload, exhaustion when facing intense demands).

Scientific validation: subsequent neuroimaging research has documented real brain differences between HSPs and non-HSPs—greater activation of areas related to deep processing, empathy, and sustained attention. A validated scale (HSPS) exists to identify the trait.

Distinction from trauma: although some symptoms may appear similar, HSP is not trauma. HSPs have a sensitive nervous system from birth; trauma additionally sensitizes the nervous system. An HSP may not be traumatized; a trauma survivor may not be an HSP. Both can coexist and potentiate each other.

Clinical importance: many HSPs come to therapy believing that 'something is wrong' with them. Recognizing the trait normalizes experiences and allows sensitivity to be managed as a resource, not as a pathology.