Does Embodiment of Verbs Influence Predicate Metaphor Processing in a Second Language? Evidence From Picture Priming

Distinct from nominal metaphors, predicate metaphors entail metaphorical abstraction from concrete verbs, which generally involve more action and stronger motor simulation than nouns. It remains unclear whether and how the concrete, embodied aspects of verbs are connected with abstract, disembodied thinking in the brains of L2 learners. Since English predicate metaphors are unfamiliar to Chinese L2 learners, the study of embodiment effect on English predicate metaphor processing may provide new evidence for embodied cognition and categorization models that remain controversial, and offer practical insights into L2 metaphor processing and pedagogy. Hence, we aim to investigate whether the embodiment of verbs, via the activation of sensorimotor information, influences two groups of L2 learners during their comprehension of conventional and novel predicate metaphors. The results show a significant effect of embodiment: a stronger facilitation for novel predicate metaphors in both higher-level and lower-level groups, and a weaker facilitation for conventional predicate metaphors in the lower-level group. The findings demonstrate preliminary evidence for a graded effect of embodiment on predicate metaphors processing, modulated by L2 proficiency and metaphor novelty. The study supports a hybrid view of embodied cognition and reveals that sensorimotor aspects of verbs may be the intermediate entity involved in the indirect categorization.

Spacious Environments Make Us Tolerant—The Role of Emotion and Metaphor

The physical environment plays an important role in moral cognition. Previous research has demonstrated that the physical environment affects individual moral judgment. Investigators have argued that the environment influences moral judgment through emotion and cognition, such as during metaphor processing. Following the intensification of urbanization and increases in population size, the phenomenon of a narrow environment has become more common. However, the relation between environmental spaciousness and moral judgment has not been thoroughly examined. We examined the effect of environmental spaciousness (spaciousness vs. narrowness) on moral judgments in Experiment 1 and Experiment 2. Results showed that participants report a higher rating score of moral judgment in more spacious environments compared with narrow environments. We further explored the roles of emotion and metaphor in the relation between environmental spaciousness and moral judgments. We found support for a partial mediation effect of emotion in the relationship between environmental spaciousness and moral judgment. The results also supported an association between the concept of spaciousness and tolerant cognition. Spacious environments may elicit positive emotions and more tolerant cognition, which in turn influences moral judgment. These results provide new evidence for the influence of the environment on moral judgments, and more attention may be warranted to incorporate this relationship in environmental design.

Effect of time constraints on the conceptual representation of metaphor processing

What shapes the conceptual representation during metaphor processing? In this paper, we investigate this question by studying the roles of both embodied simulation and linguistic distributional patterns. Researchers have propose that the linguistic component is shallow and speedy, ideal as a shortcut to construct crude representations and conserve valuable cognitive resources. Thus, during metaphor processing, people should rely on the linguistic component more if the goal of processing is shallow and the time available is limited. Here, we present two pre-registered experiments which aim to evaluate this hypothesis. The results supported the role of simulation in metaphor processing, but not the linguistic shortcut hypotheses: the effect of linguistic distributional frequency increased as people had more time to process the metaphors, and as they engaged in deep processing. Furthermore during shallow processing, the processing was easier when the embodied and linguistic components support each other. These findings indicate a complex interaction between the embodied and linguistic components during metaphor processing.

Continuous neural activations of simulation and linguistic information during metaphor processing

Language processing relies on conceptual representations which are composed of two crucial components, embodied simulation and linguistic distributional pattern. The embodied component refers to the reactivation of previous sensorimotor experiences related to the concept (e.g., experiences with a clever student when reading "bright student"); the linguistic component refers to the co-occurrence pattern of the constituent words (i.e., how often "bright" and "student" appear in the same context). In this study, we examined the existence and roles of these components in metaphor processing. Using both a behavioural study and EEG, we studied how these components affected the speed, success rate and neurophysiological activations of metaphor comprehension. We found that, while performance of metaphor comprehension was mainly influenced by the embodied component, the linguistic component was activated before the embodied component reached its peak and could act as a shortcut to construct good-enough representations, such that people found it easier to accept and hard to reject a metaphor when the distributional frequency of constituent words was high. In other words, the linguistic distributional pattern could provide a guide for conceptual representations before the embodied component was fully engaged.

Verb Metaphoric Extension Under Semantic Strain

This paper explores the processes underlying verb metaphoric extension. Work on metaphor processing has largely focused on noun metaphor, despite evidence that verb metaphor is more common (e.g., Krennmayr, 2011). Across three experiments, we tested the hypothesis that verb metaphoric extensions arise when a verb-noun pairing results in semantic strain. Experiment 1 showed that verbs are more likely than nouns to alter their meaning under semantic strain (the verb mutability effect). Participants paraphrased simple intransitive sentences like The motor complained (sample paraphrase: The engine revved loudly). We developed a novel methodology of using word2vec to assess the degree of semantic change that occurred from initial sentence to paraphrase for both nouns and verbs. Experiment 2 demonstrated that the verb mutability effect was chiefly due to online meaning adjustments, rather than to differences in polysemy between nouns and verbs. In Experiment 3, we replicated the word2vec results with an assessment using human subjects. The results also showed that nouns and verbs change meaning in qualitatively different ways, with verbs more likely to change meaning metaphorically, and nouns more likely to change meaning taxonomically or metonymically. These findings bear on the origin and processing of verb metaphors and provide a link between online sentence processing and diachronic change over language evolution.

Electrophysiological insights into the role of proficiency in bilingual novel and conventional metaphor processing

While novel and conventional metaphor comprehension has received much attention in the monolingual context, thus far little electrophysiological research has been conducted with a view to examining how bilingual speakers process metaphors in their non-native language (L2) as well as how L2 proficiency level might modulate such processes. The present study aims to investigate the electrophysiological correlates of novel and conventional metaphor comprehension in intermediate and advanced Chinese-English bilingual speakers. The participants performed a semantic decision task to English (L2) novel metaphoric, conventional metaphoric, literal, and anomalous word pairs. The results showed a graded N400 effect from literal utterances, to conventional metaphors, novel metaphors, and finally to anomalous utterances in both groups of participants, indicating that both types of metaphors were more cognitively taxing than literal utterances, irrespectively of L2 proficiency level. Additionally, between-group differences that were irrespective of utterance type were found in the N400 time frame, indicating more extended lexico-semantic access in the intermediate relative to the advanced group. Finally, in both groups of participants, an anterior sustained negativity was found in response to anomalous, novel metaphoric, and conventional metaphoric word pairs, thus suggesting a continuing difficulty of meaning integration.

On the Role of Bilateral Brain Hypofunction and Abnormal Lateralization of Cortical Information Flow as Neural Underpinnings of Conventional Metaphor Processing Impairment in Schizophrenia: An fMRI and EEG Study

Figurative language processing (e.g. metaphors) is commonly impaired in schizophrenia. In the present study, we investigated the neural activity and propagation of information within neural circuits related to the figurative speech, as a neural substrate of impaired conventional metaphor processing in schizophrenia. The study included 30 schizophrenia outpatients and 30 healthy controls, all of whom were assessed with a functional Magnetic Resonance Imaging (fMRI) and electroencephalography (EEG) punchline-based metaphor comprehension task including literal (neutral), figurative (metaphorical) and nonsense (absurd) endings. The blood oxygenation level-dependent signal was recorded with 3T MRI scanner and direction and strength of cortical information flow in the time course of task processing was estimated with a 64-channel EEG input for directed transfer function. The presented results revealed that the behavioral manifestation of impaired figurative language in schizophrenia is related to the hypofunction in the bilateral fronto-temporo-parietal brain regions (fMRI) and various differences in effective connectivity in the fronto-temporo-parietal circuit (EEG). Schizophrenia outpatients showed an abnormal pattern of connectivity during metaphor processing which was related to bilateral (but more pronounced at the left hemisphere) hypoactivation of the brain. Moreover, we found reversed lateralization patterns, i.e. a rightward-shifted pattern during metaphor processing in schizophrenia compared to the control group. In conclusion, the presented findings revealed that the impairment of the conventional metaphor processing in schizophrenia is related to the bilateral brain hypofunction, which supports the evidence on reversed lateralization of the language neural network and the existence of compensatory recruitment of alternative neural circuits in schizophrenia.