Title

An Event-Related Potential Study on the Relationship between Encoding and Stimulus Distinctiveness

Translated Titles

記憶編碼與特異性效應之間關係的ERP研究

Authors

郭春彥(Chun-Yan Guo);朱瀅(Ying Zhu);丁錦紅(Jin-Hong Ding);範思陸(Si-Lu Fan)

Key Words

事件相關電位 ; 特異性效應 ; 記憶編碼 ; 相繼記憶效應 ; 詞頻效應 ; event-related potentials ; distinctiveness ; encoding ; Dm effect ; word frequency

PublicationName

Acta Psychology Sinica

Volume or Term/Year and Month of Publication

36卷4期(2004 / 07 / 01)

Page #

455 - 463

Content Language

英文

Chinese Abstract

通過事件相關電位(ERPs)探討了在“學習-再認”模式條件下的記憶編碼與特異性效應之間的關係。選擇首要特異性特徵爲深、淺加工,次要特異性特徵爲高、低詞頻。研究結果表明,(1)行爲數據支持了低頻詞的再認比高頻詞更精確;深加工的再認比淺加工更精確,並且深加工存在著顯著的字頻效應,淺加工沒有顯著的字頻效應。(2)低頻詞比高頻詞有更大的ERP晚正成分(LPC);在低頻詞條件下,存在著顯著的相繼記憶效應,隨後再認正確的ERPs比隨後再認不正確的ERPs更正。因此,加工方式和詞頻間接地影響著記憶編碼的形成。

English Abstract

The relationship between memory encoding and stimulus distinctiveness detection was examined by means of event-related potentials (ERP) in a single-trial word list learning paradigm with recognition following distraction. To manipulate primary and secondary distinctiveness, encoding of deep vs. shallow processing was contrasted, and encoding of high vs. low frequency words was contrasted. The major results were: (1) According to behavioral results, low-frequency words had more accurate recognition than high-frequency ones; deep processing had more accurate recognition than shallow processing; and there was a significant main effect of word frequency in deep processing whereas no significant difference in shallow processing. (2) Amplitudes of late positive component (LPC) were larger for low- than for high-frequency words; for low-frequency words, ERPs were more positive for the subsequently recognized than for the unrecognized words. Therefore, encoding success was dependent on indirect processing and word frequency.

Topic Category 社會科學 > 心理學