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Psychosom Med ; 86(7): 580-590, 2024 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-38666650

RESUMO

OBJECTIVE: The influence of unconscious emotional processes on pain remains poorly understood. The present study tested whether cues to forgotten unpleasant images might amplify pain (i.e., in the absence of conscious recall). METHODS: Seventy-two healthy female adults (19 to 34 years) performed an adapted Think/No-think paradigm (T/NT) using 72 combinations of neutral face images (cues) paired with 36 neutral and 36 unpleasant images. After completion of the T/NT task, cues associated with forgotten neutral or unpleasant images were identified. Cues to either neutral or unpleasant images from the NT condition were then presented in randomized order while participants received intermediate-level thermal pain stimulation on the left hand. Ratings of both pain intensity and unpleasantness were acquired after each trial. RESULTS: Mean pain unpleasantness ratings were greater during presentation of cues to forgotten negative versus neutral images (5.52 [SD = 2.06] versus 5.23 [SD = 2.10]; p = .02). This pattern was also present when comparing cues to remembered negative versus neutral images (5.62 [SD = 1.94] versus 5.04 [SD = 1.90]; p < .001). Mean pain intensity ratings were higher for cues to negative versus neutral images when remembered (5.48 [SD = 1.79] versus 5.00 [SD = 1.69]; p < .001), but not when forgotten (5.27 [SD = 1.96] versus 5.16 [SD = 1.93]; p = .30). CONCLUSIONS: Using an adapted T/NT-Pain paradigm, this study demonstrated that cues to nonrecallable (but potentially unconsciously activated) negative emotional memories amplify pain unpleasantness, similar to known effects of conscious negative emotions.


Assuntos
Sinais (Psicologia) , Emoções , Dor , Humanos , Feminino , Adulto , Adulto Jovem , Emoções/fisiologia , Dor/psicologia , Dor/fisiopatologia , Medição da Dor , Inconsciente Psicológico , Rememoração Mental/fisiologia , Percepção da Dor/fisiologia
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