A comparison of prompts and feedback for promoting handwashing in university restrooms

We compared the effects of prompts versus feedback on handwashing behavior across six restrooms at a large university. We evaluated the effects using two separate multiple baseline designs across three men's and three women's restrooms. Results indicate that feedback was more effective for increasing handwashing.     

The Effect of Type of Feedback in Multiple-Choice Testing on Long-Term Retention

We investigated how different types of feedback in multiple-choice testing influence long-term retention. Participants completed an initial multiple-choice test on general-knowledge questions. Then, they were randomly placed into one of the following four conditions: feedback displaying the original question and four alternative options including the correct answer (Feedback 1); feedback displaying the original question and the correct answer (Feedback 2); feedback displaying only the correct answer (Feedback 3); and no feedback (Control). On the final test two days later, participants in the feedback conditions showed improved retention—even participants who received Feedback 3 outperformed the control group, regardless of whether feedback followed correct or incorrect responses. There was no difference between the feedback conditions when feedback followed correct responses, but Feedback 1 was superior to Feedback 3 when feedback followed incorrect responses. The function of feedback in multiple-choice testing is to maintain correct responses and to correct erroneous responses.     

Change deafness for simultaneous voices

Apparent changes in auditory scenes are often unnoticed. This change deafness phenomenon was examined in auditory scenes that comprise human voices. In two experiments, listeners were required to detect changes between two auditory scenes comprising two, three, and four talkers who voiced four‐syllable words. One of the voices in the first scene was randomly selected and was replaced with a new word in change trials. The rationale was that higher stimulus familiarity conferred by human voices compared to other everyday sounds, together with encoding and memory advantages for verbal stimuli and the modular processing of speech in auditory processing, should positively influence the change detection efficiency, and the change deafness phenomenon should not be observed when listeners are explicitly required to detect the obvious changes. Contrary to the prediction, change deafness was significantly observed in three‐ and four‐talker conditions. This indicates that change deafness occurs in listeners even for highly familiar stimuli. This suggests the limited ability for perceptual organization of auditory scenes comprising even a relatively small number of voices (three or four).     

A development of Freudian metapsychology for schizophrenia

The author states that psychoanalysis has much to contribute to schizophrenia. Beginning with a development of Freudian metapsychology, he addresses the in‐depth psychopathological study of a session (the first on the couch) with a schizophrenic patient who hears voices and feels that he is being watched. Since the symptoms appear at the level of the heard word and the visual image – key to Freudian metapsychology – he delineates a circuit for the word and one for the image, describing a blockage in both and the consequences of these. Furthermore, with regard to the patient's progress, he demonstrates first a quantitative improvement in symptoms, and later qualitative changes in his functioning. He shows how, over a time, functioning is improved in a once‐a‐week on‐the‐couch setting after two years of face‐to‐face treatment.     

A sub-process view of working memory capacity: Evidence from effects of speech on prose memory

In this article we outline a “sub-process view” of working memory capacity (WMC). This view suggests that any relationship between WMC and another construct (e.g., reading comprehension) is actually a relationship with a specific part of the WMC construct. The parts, called sub-processes, are functionally distinct and can be measured by intrusion errors in WMC tasks. Since the sub-processes are functionally distinct, some sub-process may be related to a certain phenomenon, whereas another sub-process is related to other phenomena. In two experiments we show that a sub-process (measured by immediate/current-list intrusions) is related to the effects of speech on prose memory (semantic auditory distraction), whereas another sub-process (measured by delayed/prior-list intrusions), known for its contribution to reading comprehension, is not. In Experiment 2 we developed a new WMC task called “size-comparison span” and found that the relationship between WMC and semantic auditory distraction is actually a relationship with a sub-process measured by current-list intrusions in our new task.     

N400 and P600 or the Role of the ERP Correlates in Sentence Comprehension: Some Applications to the Italian Language

In the present study, event-related brain potentials (ERPs) were applied to the study of language comprehension in the Italian language. The ERPs were recorded from 10 electrodes while the participants read (Experiment 1) or listened (Experiment 2) to sentences containing semantic or syntactic anomalies. Final words that were inconsistent with the sentence context elicited a negative wave at about 400 ms poststimulus that was more concentrated in the posterior sites of the scalp, whereas final words that were incongruous with the grammatical structure (subject-verb nonagreement) elicited a positive wave at about 600 ms poststimulus that was homogeneously distributed on the scalp. The authors found no differences based on the perceptual modality of the stimulus (visual or auditory), nor did they find different ERP correlates as a function of task relevance (explicit-implicit task induction). The available evidence indicated that the ERP response to semantic anomalies was at least partially distinct from the ERP response to syntactic anomalies, and that a syntactic parser is a plausible process included in sentence comprehension. The two semantic and syntactic effects appear as automatic processes of the decoding of the anomalies and also modality-independent processes. Cross-linguistic applications are considered in the general discussion.     

Monaural Loudness Adaptation for Middle-Intensity Middle-Frequency Signals: The Importance of Measurement Technique

Using the Simple Adaptation technique (SA) and the Ipsilateral Comparison Paradigm (ICP), the authors studied monaural loudness adaptation to a middle-intensity [60 dB(A)] tone at signal frequencies of 250, 1000, and 4000 Hz in the left and right ears. Adaptation effects were absent when the SA procedure was used. However, they were observed uniformly across all frequency values with the ICP, a result that challenges the assertion in the literature, on the basis of SA measures, that loudness adaptation for middle-intensity signals occurs only at frequencies above 4000 Hz. The ICP features periodic intensity modulations (±10 dB relative to the base signal) to accommodate listeners' needs for referents by which they can gauge subtle changes in the loudness of the adapting tone, a key component that is missing in the SA method. Adaptation effects in this investigation were similar in both ears, supporting the equal susceptibility assumption common in loudness adaptation studies.