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This study investigates in a joint action setting a well-established effect in speech production, cumulative semantic interference, an increase in naming latencies when naming a series of semantically related pictures. In a joint action setting, two task partners take turns naming pictures. Previous work in this setting has demonstrated that naming latencies increase not only with each semantically related picture speakers named themselves, but also with each picture named by the partner (Hoedemaker et al., 2017; Kuhlen & Abdel Rahman, 2017). This suggests that speakers pursue lexical access on behalf of their partner. In 2 electrophysiological experiments (N = 30 each) we investigated the neuro-cognitive signatures of such simulated lexical access. As expected, in both experiments speakers' naming latency increased with successive naming instances within a given semantic category. Correspondingly, speakers' electroencephalographic recordings (EEG) showed an increasing posterior positivity between 250-400 ms, an event-related potential (ERP) modulation typically associated with lexical access. However, unlike previous experiments, speakers were not influenced by their partner's picture naming. Accordingly, we found no electrophysiological evidence of lexical access. To reconcile these findings we pooled behavioral data from five experiments (N = 144). Within this large sample we find empirical evidence for partner-elicited interference. Furthermore, our data suggest that speakers may be less affected by their partner's naming response in settings with remotely located task partners (as in present experiments). We conclude that speakers do not always represent their partner's naming response and that our experimental setting may have limited the participants' evaluation of the task as a joint action. (PsycInfo Database Record (c) 2021 APA, all rights reserved).Previous research indicates that long-term memory (LTM) may contribute to performance in working memory (WM) tasks. Across 3 experiments, we investigated the extent to which active maintenance in WM can be replaced by relying on information stored in episodic LTM, thereby freeing capacity for additional information in WM. First, participants encoded word pairs into LTM, and then completed a WM task, also involving word pairs. Crucially, the pairs presented in each WM trial comprised varying numbers of new pairs and the previously learned LTM pairs. Experiment 1 showed that recall performance in the WM task was unaffected when memory set size increased through the addition of LTM pairs, but that it deteriorated when set size increased through adding new pairs. In Experiment 2, we investigated the robustness of this effect, orthogonally manipulating the number of new and LTM pairs used in the WM task. When WM load was low, performance declined with the addition of LTM pairs but remained superior to performance with the matched set size comprising only new pairs. By contrast, when WM load was higher, adding LTM pairs did not affect performance. In Experiment 3, we found that the benefit of LTM representations arises from retrieving these during the WM test, leading them to suffer from typical interference effects. We conclude that individuals can outsource workload to LTM to optimize performance, and that the WM system negotiates the exchange of information between WM and LTM depending on the current memory load. (PsycInfo Database Record (c) 2021 APA, all rights reserved).An emerging body of studies demonstrates that practicing retrieval of studied information, by comparison with restudying or no treatment, can facilitate subsequent learning and retrieval of new information, a phenomenon termed the forward testing effect (FTE) or test-potentiated new learning. Several theoretical explanations have been proposed to account for the FTE. A release-from-PI theory proposes that interpolated testing induces context changes and enhances event segregation, which in turn protect new learning from proactive interference (PI). A strategy-change view hypothesizes that prior tests teach learners to adopt more effective/elaborative learning and retrieval strategies in subsequent study and test phases. Finally, a reset-of-encoding account proposes that interim testing on studied information reduces memory load, resets the subsequent encoding process, and enhances encoding of new information. The current study recruited a large sample (over 1,000 participants) and employed a multilist learning task and mediation analyses to test these theories. The results suggest that prior list intrusions (an index of PI) significantly mediated the FTE, supporting the release-from-PI theory. selleck chemical In addition, interim testing enhanced strategic processing of temporal information during new learning (reflected by increased clustering), and temporal clustering significantly mediated the FTE, supporting a role for strategy-change in the FTE. Lastly, a variety of indices were constructed to represent the benefit of reset-of-encoding, but none of them provided evidence supporting the reset-of-encoding view. The results shed new light on the complex mechanisms underlying the forward benefits of testing. (PsycInfo Database Record (c) 2021 APA, all rights reserved).The field experiment presented here applied a stress regulation technique to optimize affective and neuroendocrine responses and improve academic and psychological outcomes in an evaluative academic context. Community college students (N = 339) were randomly assigned to stress reappraisal or active control conditions immediately before taking their second in-class exam. Whereas stress is typically perceived as having negative effects, stress reappraisal informs individuals about the functional benefits of stress and is hypothesized to reduce threat appraisals, and subsequently, improve downstream outcomes. Multilevel models indicated that compared with controls, reappraising stress led to less math evaluation anxiety, lower threat appraisals, more adaptive neuroendocrine responses (lower cortisol and higher testosterone levels on testing days relative to baseline), and higher scores on Exam 2 and on a subsequent Exam 3. Reappraisal students also persisted in their courses at a higher rate than controls. Targeted mediation models suggested stress appraisals partially mediated effects of reappraisal.
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