Correction: Study Protocol for 'PsilOCD: A Pharmacological Challenge Study Evaluating the Effects of the 5-HT2A Agonist Psilocybin on the Neurocognitive and Clinical Correlates of Compulsivity'. - O'Connor, S; Godfrey, K; Reed, S; Peill, J; Rohani-Shukla, C; Healy, M; Robbins, T; Frota, Lisboa Pereira de Souza A; Tyacke, R; Papasyrou, M; Stenbæk, D; Castro-Rodrigues, P; et al. (Cureus, 2025)