Detection and recognition: Concurrent processes in perception

In two experiments, event-related brain potentials (ERPs) were recorded while subjects performed a simultaneous detection and recognition task. Ten subjects listened to pure tones in noise and reported both whether a target tone had occurred (using a four-category confidence rating scale) and whether the target was one of two (Experiment 1) or four (Experiment 2) tones differing in frequency. The amplitudes of three ERP components were found to be differentially related to detection and recognition performance. The early N100 component varied with processing related only to detection, while the late P300 varied with both detection and recognition, and a later slow positive shift varied only with recognition and not with detection. While the latenciee of both N100 and P300 increased for less confident target detections, there were no differences in the latencies of these ERP components between correctly and incorrectly identiffed targets. Recognition performance was above the level expected by chance even when subjects reported that no target had been presented. The results indicate that brain potential components can be used to disclose temporal features of the processing of a stimulus by the nervous system and support the view that detection and recognition are partially independent, concurrent processes in perception.     

Treatment of handwriting problems utilizing EMG biofeedback training.

The effects of EMG biofeedback training on cursive handwriting were investigated for 4 girls and 5 boys in Grade 4. A significant reduction in EMG between the first baseline session and the last training session was obtained. Four of 5 characteristics of handwriting improved significantly. The need for carefully designed research comparing EMG biofeedback training and relaxation training was indicated. A self-control factor in handwriting was hypothesized.     

The impact of L1 structural frequency and cognate status on the timing of L2 production

The present study investigates the impact of first language (L1) structural frequency and L1 lexical accessibility, manipulated via cognate status, on second language (L2) speech production. L1 German–L2 English speakers and L1 English speakers completed a production task containing pre- and post-modified possessive noun phrase (NP) constructions (e.g. The actress’s sofa vs. The sofa of the actress) in which the head nouns were English-German cognates (e.g. sofa) or noncognates. While English prefers pre-modified NPs, German has a strong frequency bias for post-modified NPs. L2 English speakers exhibited higher production accuracy than L1 English speakers on post-modified NP sentences. However, facilitative L1 effects in production latencies were restricted to post-modified NP sentences containing cognates and only developed cumulatively after repeated exposure to post-modified NP sentences. We discuss how cognate status and L1 structural frequency differentially influence the accuracy and timing of choosing between different structural alternatives during L2 production.     

Reappraisal Buffers the Association Between Stress and Negative Mood Measured Over 14 Days: Implications for Understanding Psychological Resilience

Reappraisal is thought to be an adaptive emotion regulation strategy, and research suggests that individuals who habitually reappraise report more positive patterns of affect overall. However, some experimental studies indicate that a greater tendency to reappraise can exacerbate stress response, and it is unclear whether reappraisal confers resilience or exacerbates response to naturally occurring stressors. In order to address this, the present study investigated whether reappraisal prospectively moderated the association between daily stressors and daily negative mood measured over 14 days. Participants (n = 236) completed a measure of reappraisal at baseline, before completing daily online entries of stress and positive and negative mood. Data were analysed using multilevel modelling. Results suggested that reappraisal moderated the association between stress and negative mood, such that higher levels of reappraisal were associated with lower levels of negative mood in response to stress. Moreover, higher reappraisal was also independently associated with lower levels of daily negative mood and higher levels of positive mood. These results suggest that higher reappraisal may confer resilience to stress. Copyright © 2016 European Association of Personality Psychology