Zenodo (CERN European Organization for Nuclear Research)
May 23, 2026
Vassilis Papathanasiou
The third wave of cognitive-behavioral therapy, emerging in the mid-1990s, represents a shift from focusing on the content of thoughts to the psychological processes underlying them. This analysis of ten modalities—including Acceptance and Commitment Therapy, Dialectical Behavior Therapy, Mindfulness-Based Cognitive Therapy, and others—examines their theoretical foundations, techniques, and empirical support. The third wave is united not by shared doctrine but by this turn from cognitive content to process. A key philosophical divide separates pragmatist-contextualist, dialectical-contemplative, post-cognitive Buddhist, evolutionary affect-science, information-processing metacognitive, and transdiagnostic neuroticism approaches. The convergence of Process-Based Therapy with network psychopathology and the REBUS framework is identified as the most productive current theoretical development, offering a unified computational architecture.
Zenodo (CERN European Organization for Nuclear Research)
May 23, 2026
Vassilis Papathanasiou
Contemporary psychotherapy is organized across many traditions that differ not just in technique but in their foundational views on reality, knowledge, and the nature of the self. This paper systematically analyzes the third wave of cognitive-behavioral therapy—including Acceptance and Commitment Therapy, Dialectical Behavior Therapy, Mindfulness-Based Cognitive Therapy, Compassion-Focused Therapy, and others—tracing their empirical support and philosophical commitments. It maps the metatheoretical foundations of all major psychotherapeutic traditions across six axes: ontological commitments, epistemological method, theory of the subject, theory of change, therapeutic goal, and philosophical ancestry.
Zenodo (CERN European Organization for Nuclear Research)
May 23, 2026
Vassilis Papathanasiou
Psychotherapy depends on language, but its nature is rarely examined deeply. This paper argues that different therapy traditions hold incompatible views of language—from psychoanalysis seeing it as bodily inscription of enjoyment (jouissance), to phenomenology treating it as embodied gesture, to pragmatist views of language as action (speech acts, language games). The paper maps how each tradition uses language: interpretation in classical psychoanalysis, semantic correction in CBT, performative acts in speech-act theory, being-in-the-world in existential therapy, narrative identity construction, intercorporeal attunement in somatic therapies, and as dispensable in contemplative approaches. These views rest on conflicting assumptions about language and body. A unified account requires a post-representationalist theory of language as both action that creates worlds and material event that marks the body.
Zenodo (CERN European Organization for Nuclear Research)
April 26, 2026
Vassilis Papathanasiou
Hesychasm, an Eastern Christian contemplative tradition, offers a systematic phenomenology of mind with categories such as the eight logismoi (thoughts), watchfulness (nepsis and prosoche), apatheia (dispassion), cardiac-interoceptive awareness of the nous-in-kardia, and charmolype (joyful sorrow). These categories generate testable hypotheses for cognitive science, yet they remain largely unoperationalized, unlike Buddhist categories that have driven three decades of contemplative neuroscience research. The paper maps the current field, noting Buddhist dominance and sparse Christian contemplative neuroscience, and argues that hesychast categories could make unique scientific contributions through neurophenomenological methods, EEG, HRV/cardiac biomarkers, and longitudinal studies modeled on the Varieties of Contemplative Experience program.