The Mental Lexicon - Online First

Speakers of multiple languages must store the respective lexical items efficiently to enable correct access. Importantly, all items must be linked to semantic information and world knowledge. One prominent model of the mental lexicon of late bilinguals is the Revised Hierarchical Model (Kroll & Stewart, 1994), which postulates bidirectional but asymmetrical connections between separate stores for L1 (native language) and L2 (second/foreign language), and a shared conceptual store. Using German native speakers with advanced English proficiency, Experiment 1 largely confirmed model predictions regarding different preferred mental routes and processing times depending on translation direction. Moreover, the original design was extended by including abstract stimuli and picture naming in L2. A series of additional measures, such as proficiency and age of acquisition, served to specify the language experience of the participants and made it possible to compare the results with a group of non-native speakers of German (Experiment 2). Interestingly, the results suggest that the model also applies to two or more non-native languages, potentially influenced by the experimental and environmental language context.

This study examined adult L2 learners’ morphological sensitivity in Chinese, a morphosyllabic language, and explored whether there is any modulating effects of L2 proficiency. Two word naming experiments (segment shifting and standard word naming) were administered to three participant groups, including native Chinese speakers, higher L2 Chinese proficiency learners, and lower L2 Chinese proficiency learners. In both experiments, reaction times (RTs) displayed only main effects of Chinese proficiency group and word type. This suggests that the morphological processing of L2 learners did not differ from that of native speakers, although the RTs of L2 learners were longer and exhibited more variability. Concerning error rates, both experiments showed that learners with higher and lower L2 proficiency had significantly higher error rates for words with unreliable morphological cues compared to those with reliable cues. Taken together, these findings indicate that L2 learners developed sensitivity to intraword morphological structure and employed decompositional strategies when reading Chinese words, irrespective of their L2 proficiency levels.

The present paper investigates the interaction between eye movements, voice articulation and the movements of the index finger dynamically pointing to a text line in oral finger-point reading of Italian. During finger-point reading, the finger appears to be ahead of the voice most of the times, by a margin that is significantly modulated by the distribution of phrasal and prosodic units in the reading text. Eye movements replicate the same effects on a different time scale. The eye is ahead of both voice and finger by a wide margin (confirming evidence observed for English and German sentence reading), while showing a tendency to re-synchronise with voice articulation at the right edge of strong prosodic units (sentence boundaries). Our evidence suggests a multicomponent view of the time span between the eye/finger and the voice. The span is shown to be the dynamic outcome of an optimally adaptive reading strategy, resulting from the interaction between individual decoding skills, the reader’s phonological buffer capacity, and the structural complexity of a reading text. Proficient readers modulate their span to compensate for the different timing between word fixation and word articulation, read faster, and dynamically adjust their processing window to the meaningful, prosodic units of a text.

Günther et al. (2022) investigated the relationship between words and images in which they concluded the possibility of a direct link between words and embodied experience. In their study, participants were presented with a target noun and a pair of images, one chosen by their model and another chosen randomly. Participants were asked to select the image that best matched the target noun. Building upon their work, we addressed the following questions. 1. Apart from utilizing visually embodied simulation, what other strategies subjects might have used? How much does this setup rely on visual information? Can it be solved using textual representations? 2. Do current visually-grounded embeddings explain subjects’ selection behavior better than textual embeddings? 3. Does visual grounding improve the representations of both concrete and abstract words? For this aim, we designed novel experiments based on pre-trained word embeddings. Our experiments reveal that subjects’ selection behavior is explained to a large extend on text-based embeddings and word-based similarities. Visually grounded embeddings offered modest advantages over textual embeddings in certain cases. These findings indicate that the experiment by Günther et al. (2022) may not be well suited for tapping into the perceptual experience of participants, and the extent to which it measures visually grounded knowledge is unclear.