Unconscious semantic processing: İnsights from semantic primingand distributional semantics
Başlık çevirisi mevcut değil.
- Tez No: 912498
- Danışmanlar: DR. ROBERTO BOTTİNİ
- Tez Türü: Yüksek Lisans
- Konular: Belirtilmemiş.
- Anahtar Kelimeler: Belirtilmemiş.
- Yıl: 2022
- Dil: İngilizce
- Üniversite: Università degli studi di Trento
- Enstitü: Yurtdışı Enstitü
- Ana Bilim Dalı: Belirtilmemiş.
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: 70
Özet
Can we access a word!s meaning in the absence of a conscious perception of that word? This question has been investigated in the literature for a long time, however, the findings are still controversial. The verbal masked priming paradigm is a favorable tool to explore unconscious semantic processing. While some studies revealed significant priming effects, others cast doubt on these effects by demonstrating nonsignificant results. As an alternative account for the observed significant priming effect and to overcome the contradiction in the literature, Bottini et al. (2016) suggested that unconscious semantic priming might reflect the predictive relationship between word forms in the mental lexicon without activating their meaning in semantic memory. In the present study, we used color-object/animal word pairs as the testbed to test this hypothesis since the canonical color of an object or animal does not tend to co-occur in the language use. The semantic associations between words were computed using human ratings in a different study, while wordform-wordform associations are quantified using cosine similarity provided by FastText. The experiment involved a within-subject design with two sessions: subliminal condition and supraliminal condition. In subliminal condition, participants were presented with the prime word sandwiched between two masks, before seeing the target word. The supraliminal condition was identical to the subliminal except no mask used. The task was to indicate whether the target was an animal, or not . The results demonstrated a double dissociation between association type and awareness. Cosine similarity (an index of wordform-wordform association), but not human association ratings, could predict the strength of the priming effect, in the subliminal condition. On the contrary, the facilitation effect was driven by human ratings, and not by cosine similarity in the supraliminal condition. Therefore, our findings suggest that full consciousness is needed to access semantic memory.
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