Presentations

Abstract

An important issue in current psycholinguistics is the relationship between the production and comprehension systems. It has been argued that these systems are tightly linked, and that, in particular, listeners use the speech production system to predict upcoming content. We tested this view using a novel version of the visual world paradigm. Participants heard mathematical equations and looked at a clock face showing the numbers 1 to 12. On alternating trials they either heard a complete equation (3+8=11) or they heard the first part (3+8) and had to produce the solution (11, target hereafter) themselves. Participants were encouraged to look at the relevant numbers throughout the trial. On listening trials, the participants typically looked at the target before the onset of target name, and on speaking trials they typically looked at the target before naming it. However, the timing of the looks to the targets was slightly different, with participants looking earlier at the target when they had to speak themselves than when they listened. This suggests that predicting during listening and planning to speak are indeed very similar but not identical. The further methodological and theoretical consequences of the study will be discussed.

Abstract

The generation of an utterance begins with event apprehension and continues with sequential linguistic
encoding of all message elements [2]. The timecourse of formulation, however, is relatively flexible and varies
with the ease of structural encoding [3]. While previous work has shown that syntactic structure may be primed
independently of thematic roles across sentences [1], here we tested whether exposure to conceptually similar
events interacts with structural processes to facilitate the mapping of a message onto a sentence.

Abstract

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Abstract

Recently many authors have stressed that domain-general cognitive processes may affect performance in linguistic tasks. This challenges the traditional view that speaking and listening are fairly modular processes. Going beyond this broad claim, we aim to determine exactly how domain-general processes influence linguistic processes. In the present study we examined the influence of selective inhibition (invoked to suppress responses to potent competitors to target stimuli and taking some time to build up) on performance in two classic word production tasks, the semantic blocking task (naming sets of objects that do vs. do not belong to the same semantic category) and the pictureword interference task (naming pictures accompanied by categorically related vs. unrelated words). Both tasks were completed by the same participants. Analyses of the size of the interference effects for fast and slower responses (using delta plots) and of the correlations of the effect sizes in the two tasks demonstrated that selective inhibition was recruited in both tasks. We propose that the process supported by selective inhibition is lemma selection. We discuss the implications for theories concerning the origin of the interference effects in the two paradigms and the nature of lexical selection processes.

Abstract

Multiple syntactic alternatives are often available to express one message. One of the factors driving the
choice for a syntactic frame is verb bias. This study focuses on the role of verb bias in the process of selecting
a syntactic frame for dative sentences. While some verbs are typically used with one structure (e.g.,
voorleggen [submit] and the prepositional object dative in Dutch), other verbs have a weaker bias towards one
syntactic frame (e.g., voorstellen [propose]): the latter can be used interchangeably in the prepositional object
dative (PD) and double-object dative (DO) construction, and thus allows for some degree of syntactic flexibility
during production. On one view, syntactic flexibility may facilitate production because it enables speakers to fill
the post-verbal sentence slots with either a direct object or an indirect object (the incremental view), while on a
different view, flexibility can lead to competition between structural alternatives, delaying the production of the
sentence until this competition is resolved (the competition view)1. The two views make opposite predictions
regarding the production of sentences featuring verbs with different biases. The incremental view predicts
shorter verb onsets for sentences featuring weak-bias verbs than strong-bias verbs, while the competition view
predicts shorter onsets for sentences with strong-bias verbs. In addition, if the competition view holds,
sentence production may benefit from a mechanism that helps resolve competition between two syntactic
frames by suppressing one frame to enable fast selection of the other frame. We hypothesized that executive
control (EC) can mediate this selection process, facilitating structure selection in the weak verb bias condition.

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