Positive and negative semantic priming of attended and unattended parafoveal words in a lexical decision task

1996 ◽  
Vol 94 (2) ◽  
pp. 209-226 ◽  
Author(s):  
Juan J. Ortells ◽  
Pio Tudela
Keyword(s):  
Lexical Decision ◽  
Lexical Decision Task ◽  
Semantic Priming ◽  
Decision Task

Lexical decision tasks in depressive patients: semantic priming before and after clinical improvement

2002 ◽  
Vol 17 (2) ◽  
pp. 69-74 ◽  
Author(s):  
C. Besche-Richard ◽  
C. Passerieux ◽  
M.-C. Hardy-Baylé
Keyword(s):  
Lexical Decision ◽  
Lexical Decision Task ◽  
Clinical Improvement ◽  
Semantic Priming ◽  
Rating Scales ◽  
Psychomotor Retardation ◽  
Clinical Population ◽  
Decision Task ◽  
Control Subjects ◽  
Depressive Patients

SummaryThis study was designed to evaluate the effect of semantic priming with a lexical decision task in 22 depressed patients (DSM-III-R, 1987) and 30 control subjects. These patients were evaluated twice: first when they arrived at the hospital, and secondly, after clinical improvement. Clinical improvement was evaluated using standard depression rating scales. A lexical decision task involving semantic relations (related vs. unrelated, e.g., apple-pear) was used to evaluate the processing of semantic information. The results showed that, for the first evaluation, the depressives presented similar semantic priming to control subjects. When we compared semantic priming in the first and the second passes, we observed that its amplitude was identical. The sole difference between the two passes concerns the global reaction time in the depressive group. This last result suggested that, with clinical improvement, the characteristic psychomotor retardation declines. One of the major results concerns the fact that severe depressive patients (first pass) exhibit normal semantic priming in a lexical decision task. These results indicate, in this clinical population, the preservation of controlled processes implicated in this lexical decision task.

scholarly journals The Mechanism Underlying Backward Priming in a Lexical Decision Task: Spreading Activation versus Semantic Matching

1998 ◽  
Vol 51 (3) ◽  
pp. 531-560 ◽  
Author(s):  
Dorothee J. Chwilla ◽  
Peter Hagoort ◽  
C.M. Brown
Keyword(s):  
Reaction Time ◽  
Lexical Decision ◽  
Lexical Decision Task ◽  
Semantic Priming ◽  
Priming Effect ◽  
Decision Task ◽  
Spreading Activation ◽  
Semantic Matching ◽  
Priming Effects ◽  
Manipulation Experiment

Koriat (1981) demonstrated that an association from the target to a preceding prime, in the absence of an association from the prime to the target, facilitates lexical decision and referred to this effect as “backward priming”. Backward priming is of relevance, because it can provide information about the mechanism underlying semantic priming effects. Following Neely (1991), we distinguish three mechanisms of priming: spreading activation, expectancy, and semantic matching/ integration. The goal was to determine which of these mechanisms causes backward priming, by assessing effects of backward priming on a language-relevant ERP component, the N400, and reaction time (RT). Based on previous work, we propose that the N400 priming effect reflects expectancy and semantic matching/ integration, but in contrast with RT does not reflect spreading activation. Experiment 1 shows a backward priming effect that is qualitatively similar for the N400 and RT in a lexical decision task. This effect was not modulated by an ISI manipulation. Experiment 2 clarifies that the N400 backward priming effect reflects genuine changes in N400 amplitude and cannot be ascribed to other factors. We will argue that these backward priming effects cannot be due to expectancy but are best accounted for in terms of semantic matching/integration.

scholarly journals Heterogeneity in semantic priming effect with a lexical decision task in patients after left hemisphere stroke

2016 ◽  
Vol 10 (2) ◽  
pp. 91-97
Author(s):  
Candice Steffen Holderbaum ◽  
Letícia Lessa Mansur ◽  
Jerusa Fumagalli de Salles
Keyword(s):  
Lexical Decision ◽  
Lexical Decision Task ◽  
Left Hemisphere ◽  
Semantic Priming ◽  
Priming Effect ◽  
Stimulus Onset ◽  
Decision Task ◽  
Semantic Priming Effect ◽  
And Performance ◽  
Left Hemisphere Stroke

ABSTRACT Investigations on the semantic priming effect (SPE) in patients after left hemisphere (LH) lesions have shown disparities that may be explained by the variability in performance found among patients. The aim of the present study was to verify the existence of subgroups of patients after LH stroke by searching for dissociations between performance on the lexical decision task based on the semantic priming paradigm and performance on direct memory, semantic association and language tasks. All 17 patients with LH lesions after stroke (ten non-fluent aphasics and seven non aphasics) were analyzed individually. Results indicated the presence of three groups of patients according to SPE: one exhibiting SPE at both stimulus onset asynchronies (SOAs), one with SPE only at long SOA, and another, larger group with no SPE.

Joint Effects of Semantic Priming and Repetition in a Lexical Decision Task: Implications for a Model of Lexical Access

1986 ◽  
Vol 38 (2) ◽  
pp. 213-228 ◽  
Author(s):  
John Wilding
Keyword(s):  
Lexical Decision ◽  
Lexical Decision Task ◽  
Semantic Priming ◽  
Lexical Access ◽  
Decision Task ◽  
Additive Effects ◽  
Adequate Model ◽  
Joint Effects ◽  
Decision Latency ◽  
Preceding Word

An experiment is reported which showed that in a lexical decision task semantic priming by a related preceding word and repetition of target words produce additive effects on decision latency. Previous models of lexical access and modifications of them are discussed, and it is argued that some such models predict an interaction of priming and repetition, while others are insufficiently precise to make a prediction. It is suggested that the generality of effects across tasks requiring lexical access must be established and the components of complex effects must be separated before an adequate model can be devised to account for the data.

Cortical activation during a semantic priming lexical decision task as revealed by event-related fMRI

NeuroImage ◽  
2000 ◽  
Vol 11 (5) ◽  
pp. S360 ◽  
Author(s):  
W. Caroline West ◽  
Anders M. Dale ◽  
Doug Greve ◽  
Gina Kuperberg ◽  
Gloria Waters ◽  
...  
Keyword(s):  
Lexical Decision ◽  
Lexical Decision Task ◽  
Semantic Priming ◽  
Cortical Activation ◽  
Decision Task
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