Semantic Priming
Measure RT facilitation when prime and target are semantically related.
Frequently Asked Questions
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What is priming?
Prior exposure speeds processing of related stimuli.
How is semantic priming measured?
As the reaction-time advantage for targets related to the preceding prime — cat-dog — over unrelated pairs such as cat-table.
Why does relatedness speed responses?
Spreading-activation and expectation accounts both predict facilitation: related words are partially pre-activated, or anticipated, before the target appears.
What can moderate the effect?
The prime-target interval, the proportion of related pairs, and association strength all matter; the effect is robust at the group level but noisy for individuals. Note for this demo: with 40 trials the pool of word pairs is small, so each pair repeats about four times — this repeated exposure may invite expectation or prediction strategies, which can inflate the priming effect beyond automatic semantic facilitation.
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About Semantic Priming
Historical Background
Semantic priming was first described by Meyer and Schvaneveldt in the 1970s, who observed that people recognized a word faster when it was preceded by a related word (e.g., 'doctor' after 'nurse'). This discovery revolutionized our understanding of how meaning is represented and processed in the mind.
Theoretical Explanations
Two main theories explain priming: spreading activation (related concepts automatically activate each other in a semantic network) and predictive coding (the brain generates predictions about upcoming stimuli based on context). Both mechanisms contribute to the priming effect.
Research Applications
Semantic priming is used to study language processing, conceptual representation, and priming effects in clinical populations. It has applications in understanding schizophrenia (where priming may be disrupted) and developing treatments for language disorders.
References
- Meyer, D. E., & Schvaneveldt, R. W. (1971). Facilitation in recognizing pairs of words: Evidence of a dependence between retrieval operations. Journal of Experimental Psychology, 90(2), 227-234. 10.1037/h0031564
- Collins, A. M., & Loftus, E. F. (1975). A spreading-activation theory of semantic processing. Psychological Review, 82, 407-428.
- Neely, J. H. (1977). Semantic priming and retrieval from lexical memory: Roles of inhibitionless spreading activation and limited-capacity attention. Journal of Experimental Psychology: General, 106(3), 226-254. 10.1037/0096-3445.106.3.226
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About This Experiment
This experiment is an educational adaptation for demonstration purposes. It is not a clinical diagnostic tool. Results reflect your performance in this specific session and should not be interpreted as an assessment of your cognitive abilities.
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