False-Affirmative > False-Negated > True-Negated. However, the components (early N400 & P600) reflecting the immediate processing of a negation operator were observed only in lexical negation. Moreover, the ERP patterns reflecting an effect of truth value were not identical: N400 effect was observed in the true condition compared to the false condition in the lexically negated sentences, whereas Positivity effect (like early P600) was observed in the false condition compared to the true condition in the syntactically negated sentences. These results indicate that the form and location of negation operator varied by languages and negation types influences the strategy and pattern of online negation processing. However, the final representation resulting from different computational processing of negation appears to be language universal and is not directly affected by negation types. " /> False-Affirmative > False-Negated > True-Negated. However, the components (early N400 & P600) reflecting the immediate processing of a negation operator were observed only in lexical negation. Moreover, the ERP patterns reflecting an effect of truth value were not identical: N400 effect was observed in the true condition compared to the false condition in the lexically negated sentences, whereas Positivity effect (like early P600) was observed in the false condition compared to the true condition in the syntactically negated sentences. These results indicate that the form and location of negation operator varied by languages and negation types influences the strategy and pattern of online negation processing. However, the final representation resulting from different computational processing of negation appears to be language universal and is not directly affected by negation types. " />

Donnerstag, 19. Oktober 2017, 17:00 - 18:30 iCal

Talk of Dr. Yunju Nam (Konkuk University)

Truth value judgment and negation processing in Korean

Fakultät für Psychologie/Hörsaal G (2. Stock, linke Stiege)
Liebiggasse 5, 1010 Wien

Tagung, Konferenz, Kongress, Symposium


Verifying truth value is an essential for a successful human communication. Several empirical studies using truth-value verification paradigm have demonstrated that it is easier and faster to judge the truth value in true-affirmative (TA) sentences than false-affirmative (FA) ones. However, the opposite pattern was found in negation sentences, i.e., more response time was needed for the true-negated (TN) sentences than the false negated (FN) sentences in sentence-picture verification task (Just & Carpenter, 1971; Chase & Clark, 1972; Trabasso, Rollins, & Shaughnessy, 1971).

For this phenomenon, Carpenter & Just (1975) suggested “Constituent comparison model” which postulated the incremental processing steps in negation and truth-value verification. According to the model, it took for granted that the longest response time was measured in TN condition because the most number of steps are engaged in TN condition (five comparing steps with two revising) whereas four comparing steps with one revising in FN, three comparing steps with one revising in FA, and two comparing steps with no revising in TA condition. Unfortunately, Previous ERPs studies didn’t provide a convergent result of the incremental process on negation (Fischler et al., 1983; Lüdtke et al., 2008).

In this talk, I will introduce a recent my research which tried to provide various online ERPs evidence on the negation processing using syntactic (for example, A bed/a clock belongs to/doesn't belong to the furniture "???/??? ??? ???/??? ???") and lexical negation(for example, A tiger/a butterfly has/doesn't have a tail "????/??? ??? ??/??") in Korean. The behavioral results (i.e. verification task scores) show that there is universal pattern of the accuracy and response time for verification process: True-Affirmative (high accuracy and short latency) > False-Affirmative > False-Negated > True-Negated. However, the components (early N400 & P600) reflecting the immediate processing of a negation operator were observed only in lexical negation. Moreover, the ERP patterns reflecting an effect of truth value were not identical: N400 effect was observed in the true condition compared to the false condition in the lexically negated sentences, whereas Positivity effect (like early P600) was observed in the false condition compared to the true condition in the syntactically negated sentences. These results indicate that the form and location of negation operator varied by languages and negation types influences the strategy and pattern of online negation processing. However, the final representation resulting from different computational processing of negation appears to be language universal and is not directly affected by negation types.

 


Veranstalter

Prof. Dr. Ulrich Ansorge and Dr. Soonja Choi


Kontakt

Dr. Florian Goller
Institut für Psycholgogische Grundlagenforschung und Forschungsmethoden
Kognitionspsychologie
+43-1-4277-47148
florian.goller@univie.ac.at