PsyCoMark @ SemEval 2026

Psycholinguistic Conspiracy Marker Extraction and Detection

Understand Conspiracy Thinking at its Roots

PsyCoMark brings together psychology and NLP to uncover how conspiracy theories are expressed in everyday conversations. This task introduces a novel dataset and challenges participants to go beyond topical detection: can your model recognize the structure of conspiratorial thought?

Join us in tackling two synergistic subtasks:

  • Subtask 1: Extract psycholinguistic markers of conspiracy thinking (e.g., Actors, Victims, Effects).
  • Subtask 2: Detect whether a Reddit comment expresses a conspiracy belief.

Unlike prior work, our data is topic-diverse, sourced from real Reddit discussions, and grounded in psychological theory.

âš¡ Curious about the markers of paranoia? Want to build more explainable content moderation tools? This task is for you.


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