Within the depth-psychology corpus, 'Esp' operates across two distinct registers that rarely intersect. In the Jungian parapsychological tradition—most notably in Jung's own writings on synchronicity and Rhine's experiments, and in von Franz's extensions of that work—ESP designates extrasensory perception as an empirical anomaly that challenges causal-energetic explanations of psychic phenomena. For Jung, positive ESP results indexed the psychic relativity of space and time, lending experimental support to the synchronicity hypothesis; the term appears in the index of The Structure and Dynamics of the Psyche alongside acausality, psychokinesis, and the Rhine experiments. The second, far more voluminous register is typological: in the tradition flowing from Myers-Briggs through Lenore Thomson, Naomi Quenk, and Isabel Briggs Myers, 'ESP' denotes the cluster of Extraverted Sensing Perceiving personality types (ESTP, ESFP). These writers characterize ESP types by their mastery of real-time situational reading, their social adaptability, their inferior Introverted Intuition, and the distinctive grip states that emerge under stress. The tension between these two usages is genuine: the parapsychological ESP concerns anomalous knowledge that bypasses ordinary sensation, while the typological ESP concerns types whose entire orientation is anchored in immediate sensory reality. Both usages, however, share a preoccupation with the boundaries of ordinary perception and the psychology of those who inhabit those boundaries most intensely.
ESPs often speak of that peculiar thrill of knowing their game, knowing when luck or timing or the cards or an audience is 'with them.' An ESP goes with this feeling, tries to stay with it—like a surfer coming in on a perfect wave.
Thomson identifies the defining phenomenological signature of ESP types as a real-time, kinesthetic attunement to situational probability that functions as their primary mode of world-engagement.
, Personality Type: An Owner's Manual, 1998thesis
Their ability to read people and to establish a rapport with them is parallel to none. ESPs take pleasure in this aspect of their personality and they use it to their benefit.
Thomson argues that the ESP's dominant social skill—interpersonal reading and rapport—is both their greatest asset and a source of inauthenticity when unchecked by Introverted Judgment.
, Personality Type: An Owner's Manual, 1998thesis
ESP, 434. 441, 445, 446 505,509'510'5, 450, 479, 1 ether, 29, 137 7,523fJ,530
The index entry confirms that Jung treats ESP as a central technical term within his synchronicity framework, clustering it with Rhine's experiments, acausal events, and parapsychological methodology across multiple pages.
, The Structure and Dynamics of the Psyche, 1960thesis
like individual ESPs, a Sensate society can be undermined by the functions it has relegated to the cultural unconscious. Without a strong Introverted Judging perspective, Introverted Intuition gets out of society's control.
Thomson extends the ESP typological analysis to the cultural level, arguing that a collectively Sensate orientation reproduces the same shadow dynamics—uncontrolled Introverted Intuition and magical thinking—as the individual ESP under stress.
, Personality Type: An Owner's Manual, 1998thesis
events of this kind cannot be considered from the point of view of causality, for causality presupposes the existence of space and time in so far as all observations are ultimately based upon bodies in motion.
Jung grounds ESP phenomenology in a critique of causal-energetic explanation, arguing that positive ESP results necessitate abandoning standard spatiotemporal assumptions in favor of a synchronistic framework.
, The Structure and Dynamics of the Psyche, 1960thesis
the ESTP is galvanized by Introverted Thinking toward situations involving risk, strategy, and serious competition... these types are the quintessential adventurers. They like the thrill of the game.
Thomson differentiates ESP subtypes, showing that ESTP's secondary Introverted Thinking orients the sensory-perceptive temperament toward competitive risk rather than interpersonal warmth.
, Personality Type: An Owner's Manual, 1998supporting
Extraverted Sensing types may experience some uneasiness about their natural affinity for fun in the present moment, often picking up on others' disapproval of their carefree approach to life.
Quenk identifies the characteristic vulnerability of ESP types as internalized social disapproval of their present-tense orientation, producing the projections and sensitivities that precede inferior-function eruptions.
, Was That Really Me? How Everyday Stress Brings Out Our Hidden Personality, 2002supporting
due to lack of experience, internalize random cues from the environment and interpret them as negative possibilities. If an intimate relationship is involved, there may be a foreboding that the ESTP or ESFP has done something to elicit a negative response.
Quenk describes how inferior Introverted Intuition erupts in ESP types as anxious over-interpretation of environmental cues, inverting their ordinarily confident sensory mastery into catastrophic foreboding.
, Was That Really Me? How Everyday Stress Brings Out Our Hidden Personality, 2002supporting
Extraverted Sensing types become more comfortable with and less fearful of possibilities. This enables them to make difficult decisions in ambiguous situations, accept the reality of their decisions, and avoid looking back.
Quenk charts the developmental outcome of ESP inferior-function work as an earned capacity to tolerate ambiguity and honor Intuitive perspectives formerly excluded from consciousness.
, Was That Really Me? How Everyday Stress Brings Out Our Hidden Personality, 2002supporting
the very presence of other people in a pleasurable activity is important to ESFPs. They like doing things with people who are enjoying the same experience, and others' enthusiasm can carry them into situations they may not have otherwise thought much about.
Thomson characterizes the ESFP variant of the ESP temperament as constitutively social, with shared sensory experience rather than shared meaning functioning as the primary relational currency.
, Personality Type: An Owner's Manual, 1998supporting
Auxiliary Introverted Feeling thus focuses on what is important and finds solutions to ground out-of-control negative Intuitions. Others can help ESFPs set priorities and 'give gentle suggestions, but not push.'
Quenk details the role of auxiliary Introverted Feeling in restoring equilibrium for ESFP types, demonstrating how the secondary function mediates between dominant Sensing and the erupted inferior.
, Was That Really Me? How Everyday Stress Brings Out Our Hidden Personality, 2002supporting
She felt terrified of losing her security and everything tangible she could grasp. If she lost these real things, she'd become an outcast.
Through a case study, Quenk illustrates how the grip state in an ESFP translates as existential terror at losing concrete, tangible anchors—the shadow side of dominant Extraverted Sensing.
, Was That Really Me? How Everyday Stress Brings Out Our Hidden Personality, 2002supporting
ESFP people are friendly, adaptable realists. They rely on what they can see, hear, and know first-hand. They good-naturedly accept and use the facts around them, whatever these are.
Quenk supplies the standard typological baseline description of ESFP, against which grip-state deviations are measured in her clinical analysis.
, Was That Really Me? How Everyday Stress Brings Out Our Hidden Personality, 2002supporting
ESTPs focus their feelings of unhappiness on the reactions they're getting from others. Their first instinct is to 'go over' better—either by doing something different or by finding a new audience.
Thomson describes the ESTP's tertiary Extraverted Feeling as a compensatory strategy that produces image-management and social performance in place of authentic intimacy when the secondary function is undeveloped.
, Personality Type: An Owner's Manual, 1998supporting
it would be good if parapsychologists would not feel it necessary to take a rigid view of it as part of a vain attempt to make their still-unexplained psi-phenomena fit into a fundamentally already outdated scientific worldview.
Von Franz urges parapsychologists to approach Jung's synchronicity hypothesis with theoretical openness rather than forcing ESP phenomena into a causal-energetic framework that she regards as scientifically obsolete.
, Psyche and Matter, 2014aside