Inhibitory mechanisms in single negative priming from ignored and briefly flashed primes: The key role of the inter-stimulus interval

• Published in: Consciousness and cognition 2014-10, Vol.29, p.235-247
• Main Authors: Wang, Yonghui, Zhao, Jingjing, Liu, Peng, Wei, Lianyu, Di, Meilin
• Format: Article
• Language: English
• Subjects: Activity levels. Psychomotricity; Adult; Biological and medical sciences; Cognition & reasoning; Female; Fundamental and applied biological sciences. Psychology; Humans; Inhibition (Psychology); Inhibitory mechanism; Interstimulus intervals; Male; Masked prime; Negative priming; Perceptual Masking - physiology; Psychological tests; Psychology. Psychoanalysis. Psychiatry; Psychology. Psychophysiology; Psychomotor Performance - physiology; Reaction Time - physiology; Repetition Priming - physiology; Semantics; Time Factors; Vigilance. Attention. Sleep; Young Adult
• ISSN: 1053-8100; 1090-2376
• DOI: 10.1016/j.concog.2014.08.020

•The present study expanded the assumptions of inhibitory models.•NP induced by an ignore instruction depends on a long ISI between prime and target.•Different positions of ISI resulted in different speed of inhibition processing. The influence of interstimulus intervals (ISIs) on priming effects was investigated using a single-prime negative priming (NP) paradigm. In all experiments, a brief (16ms), centrally displayed prime (a Chinese character, to be ignored) appeared, followed by a pattern mask and then a centrally displayed target (another semantically related or unrelated Chinese character); the task required semantic categorization (animate/inanimate) of the target. An ISI could occur either between prime and mask (Experiments 1 and 5) or between mask and target (Experiments 2–4). The results revealed NP when a 470ms ISI occurred between prime and mask (Experiments 1 and 5) and when a 700ms ISI occurred between mask and target (Experiments 3 and 4). In contrast, when a long prime-target SOA was maintained but the mask-target ISI was shortened, NP disappeared (Experiment 4). The results indicated that a persisting mask/distractor (without ISI) located in the same position as the following target interfered with the buildup of inhibition, but an ISI between prime and mask or mask and target eliminated this interference, and that inhibition processes induced by an ignore instruction were implemented faster with an ISI placed between prime and mask than with an ISI placed between mask and target.