European journal of pain (London, England) · 2026
The Interfering Effects of Pain on Subsequent Lexical Processing.
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Wang Yuzheng, He Huizhong, Li Yue, Gong Wenxiao
Аннотация
BACKGROUND: Previous research has consistently established that the interruptive effect of painful stimuli is lasting and selective, yet investigations have primarily focused on attentional tasks. The present study investigated whether this interruptive effect extends to subsequent lexical processing.
METHODS: A mixed experimental design was employed, comprising two independent experiments to examine the temporal dynamics of pain's interference on different levels of lexical processing. Participants were randomly assigned to one of three conditions: pain, non-painful stimulation or no-stimulation control. In the pain and non-pain conditions, each trial began with a brief electrical stimulus, followed by a lexical task after a variable interstimulus interval (ISI; 0, 250 or 1250 ms). Two experiments were conducted: Experiment 1 (N = 75) employed a semantic decision task, and Experiment 2 (N = 75) employed a structural decision task.
RESULTS: In Experiment 1, semantic decision performance in the pain group was significantly impaired immediately following stimulation (0-ms delay), but this impairment subsided by 250 ms. A processing disadvantage for pain-related words was observed selectively in the semantic task. In Experiment 2, structural decision performance remained unaffected by pain at all delays.
CONCLUSIONS: The disruptive effect of pain on lexical processing is transient (lasting < 250 ms) and selective to semantic processing, leaving structural processing intact. These findings demonstrate that pain's impact is modulated by task demands, with semantic processing being selectively vulnerable to pain-induced interference.
SIGNIFICANCE STATEMENT: Pain produces a transient interruptive effect on semantic processing that dissipates within 250 ms. Structural processing remains unaffected, indicating that pain's interference is selective to deeper conceptual analysis. The disruptive effect is content-general, impairing semantic processing regardless of word type (pain-related or not).
METHODS: A mixed experimental design was employed, comprising two independent experiments to examine the temporal dynamics of pain's interference on different levels of lexical processing. Participants were randomly assigned to one of three conditions: pain, non-painful stimulation or no-stimulation control. In the pain and non-pain conditions, each trial began with a brief electrical stimulus, followed by a lexical task after a variable interstimulus interval (ISI; 0, 250 or 1250 ms). Two experiments were conducted: Experiment 1 (N = 75) employed a semantic decision task, and Experiment 2 (N = 75) employed a structural decision task.
RESULTS: In Experiment 1, semantic decision performance in the pain group was significantly impaired immediately following stimulation (0-ms delay), but this impairment subsided by 250 ms. A processing disadvantage for pain-related words was observed selectively in the semantic task. In Experiment 2, structural decision performance remained unaffected by pain at all delays.
CONCLUSIONS: The disruptive effect of pain on lexical processing is transient (lasting < 250 ms) and selective to semantic processing, leaving structural processing intact. These findings demonstrate that pain's impact is modulated by task demands, with semantic processing being selectively vulnerable to pain-induced interference.
SIGNIFICANCE STATEMENT: Pain produces a transient interruptive effect on semantic processing that dissipates within 250 ms. Structural processing remains unaffected, indicating that pain's interference is selective to deeper conceptual analysis. The disruptive effect is content-general, impairing semantic processing regardless of word type (pain-related or not).