The Neuroscience and Psychology of the Alien Abduction Phenomenon: A Review

Alien abduction experiences—reports of being taken by non-human entities into craft-like environments—are scientifically contentious but can be explained by converging neuroscientific and psychological mechanisms. Leading neurobiological candidates include sleep paralysis, REM dreaming intrusion, temporoparietal and basal ganglial involvement, 'death feigning' reactivation, and serotonergic changes that alter self-experience. Predictive processing models integrate these factors, framing abduction as high-confidence inferences under sensory ambiguity and arousal, shaped by cultural expectations. Psychological factors like dissociation, fantasy proneness, absorption, suggestibility, memory vulnerability, and past trauma modulate susceptibility and narrative content. Parallels with psychedelic and near-death experiences suggest overlapping mechanisms, though context and meaning-making differ. The review offers an integrated framework while noting limitations and a minority of unexplained cases.

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Abstract

The alien abduction phenomenon – reports of being taken by non-human entities, often into a craft-like environment and subjected to examinations or procedures – is widely described yet remains scientifically contentious. This review synthesizes the main neuroscientific and psychological models that have been proposed to explain why such experiences occur, why they are often recalled as vivid and life-changing, and why their surface content varies across persons and cultures. On the neurobiological side, the strongest candidate mechanisms are sleep paralysis, rapid-eye-movement dreaming and intrusion, temporoparietal and basal ganglial implication, ‘death feigning’ re-activation, and the ways in which certain serotonergic changes can dramatically shift the experience of the self, world and other. At a higher explanatory level, predictive processing models help integrate these factors by framing abduction experiences as high-confidence inferences made under conditions of sensory ambiguity and heightened arousal, shaped by learning and cultural expectations. On the psychological side, individual differences in dissociation, fantasy proneness, absorption, suggestibility, memory vulnerability and past trauma, appear to modulate both susceptibility and (especially for memory effects and trauma responses) narrative content and consolidation. Finally, phenomenological and psychological parallels with psychedelic and near-death experiences – centered around ‘entity encounters’ – suggest partially overlapping mechanisms across exceptional human experiences, while also highlighting meaningful differences in context, meaning-making, and downstream impact. A conclusion is offered as to an integrated framework, while importantly highlighting limitations and a minority of cases evading clear explanation. Practical recommendations for future research aimed at improving phenomenological, psychological and neurobiological measurement and prediction, are finally made.