Syntactic learning by mere exposure - An ERP study in adult learners

<p>Abstract</p> <p>Background</p> <p>Artificial language studies have revealed the remarkable ability of humans to extract syntactic structures from a continuous sound stream by mere exposure. However, it remains unclear whether the processes acquired in such tasks are comparable to those applied during normal language processing. The present study compares the ERPs to auditory processing of simple Italian sentences in native and non-native speakers after brief exposure to Italian sentences of a similar structure. The sentences contained a non-adjacent dependency between an auxiliary and the morphologically marked suffix of the verb. Participants were presented four alternating learning and testing phases. During learning phases only correct sentences were presented while during testing phases 50 percent of the sentences contained a grammatical violation.</p> <p>Results</p> <p>The non-native speakers successfully learned the dependency and displayed an N400-like negativity and a subsequent anteriorily distributed positivity in response to rule violations. The native Italian group showed an N400 followed by a P600 effect.</p> <p>Conclusion</p> <p>The presence of the P600 suggests that native speakers applied a grammatical rule. In contrast, non-native speakers appeared to use a lexical form-based processing strategy. Thus, the processing mechanisms acquired in the language learning task were only partly comparable to those applied by competent native speakers.</p

Modeling test learning and dual-task dissociations

Much of cognitive psychology is premised on the distinction between automatic and intentional processes, but the distinction often remains vague in practice and alternative explanations are often not followed through. For example, Hendricks, Conway and Kellogg (Journal of Experimental Psychology: Learning, Memory, and Cognition, 39, 491–1500, 2013) found that dual tasks at training versus at test dissociated performance in two different artificial grammar learning tasks. This was taken as evidence for underlying automatic and intentional processes. In this article, a different explanation is considered based on test learning and similarity, where participants are assumed to update their knowledge at test. Contrasting formal memory models of test learning are implemented, and it is concluded that the models account for the relevant dissociations without assuming a distinction between automatic and intentional processes

The Infamous Relationship Between Violent Video Game Use and Aggression: Uncharted Moderators and Small Effects Make It a Far Cry from Certain

There is ongoing scientific and public interest in whether playing violent video games (VVGs) increases aggression. Here, we review the extant evidence for the effects of VVGs on aggression across three different types of research – (1) experimental, lab-based studies, (2) cross-sectional and longitudinal studies, and (3) epidemiological studies of societal violence (e.g. violent crime rates). Although the idea that playing VVGs causes aggression is intuitively appealing, empirical evidence suggests that strong claims about a positive relationship are unjustified. In the laboratory, playing VVGs leads to only small increases in aggression, and, when issues such as publication bias are accounted for, these estimates decline further in size (Hilgard et al. Psychological Bulletin 143:757, 2017). In terms of societal violence, the evidence consistently shows no relationship between VVG use and violence, sometimes even showing decreases in violence associated with increased VVG use (e.g. Markey, Markey & French, 2015). Evidence further suggests that the relationship between VVGs and aggression is not well understood, with factors such as narrative context, game difficulty, and competitiveness potentially influencing or accounting for any relationship between gameplay and aggression. Some studies suggest that, under some circumstances, VVGs may even reduce hostility (e.g. when used for mood management; Ferguson & Rueda (European Psychologist 15:99, 2010). At present, we feel the evidence weighs against the notion that VVGs cause aggression, though more sophisticated theoretical and methodological approaches are necessary to more fully understand the boundary conditions of the relationship