Human melody singing by bullfinches (Pyrrhula pyrrula) gives hints about a cognitive note sequence processing

We studied human melody perception and production in a songbird in the light of current concepts from the cognitive neuroscience of music. Bullfinches are the species best known for learning melodies from human teachers. The study is based on the historical data of 15 bullfinches, raised by 3 different human tutors and studied later by Jürgen Nicolai (JN) in the period 1967–1975. These hand-raised bullfinches learned human folk melodies (sequences of 20–50 notes) accurately. The tutoring was interactive and variable, starting before fledging and JN continued it later throughout the birds’ lives. All 15 bullfinches learned to sing alternately melody modules with JN (alternate singing). We focus on the aspects of note sequencing and timing studying song variability when singing the learned melody alone and the accuracy of listening-singing interactions during alternatively singing with JN by analyzing song recordings of 5 different males. The following results were obtained as follows: (1) Sequencing: The note sequence variability when singing alone suggests that the bullfinches retrieve the note sequence from the memory as different sets of note groups (=modules), as chunks (sensu Miller in Psychol Rev 63:81–87, 1956). (2) Auditory–motor interactions, the coupling of listening and singing the human melody: Alternate singing provides insights into the bird’s brain melody processing from listening to the actually whistled part of the human melody by JN to the bird’s own accurately singing the consecutive parts. We document how variable and correctly bullfinches and JN alternated in their singing the note sequences. Alternate singing demonstrates that melody-singing bullfinches did not only follow attentively the just whistled note contribution of the human by auditory feedback, but also could synchronously anticipate singing the consecutive part of the learned melody. These data suggest that both listening and singing may depend on a single learned human melody representation (=coupling between perception and production).     

Psychologie in physikalifcher Sprache

Ohne Zusammenfassung     

Die logizistische Grundlegung der Mathematik

Ohne Zusammenfassung     

Can clouds dance? Neural correlates of passive conceptual expansion using a metaphor processing task: Implications for creative cognition

Creativity has emerged in the focus of neurocognitive research in the past decade. However, a heterogeneous pattern of brain areas has been implicated as underpinning the neural correlates of creativity. One explanation for these divergent findings lies in the fact that creativity is not usually investigated in terms of its many underlying cognitive processes. The present fMRI study focuses on the neural correlates of conceptual expansion, a central component of all creative processes. The study aims to avoid pitfalls of previous fMRI studies on creativity by employing a novel paradigm. Participants were presented with phrases and made judgments regarding both the unusualness and the appropriateness of the stimuli, corresponding to the two defining criteria of creativity. According to their respective evaluation, three subject-determined experimental conditions were obtained. Phrases judged as both unusual and appropriate were classified as indicating conceptual expansion in participants. The findings reveal the involvement of frontal and temporal regions when engaging in passive conceptual expansion as opposed to the information processing of mere unusualness (novelty) or appropriateness (relevance). Taking this new experimental approach to uncover specific processes involved in creative cognition revealed that frontal and temporal regions known to be involved in semantic cognition and relational reasoning play a role in passive conceptual expansion. Adopting a different vantage point on the investigation of creativity would allow for critical advances in future research on this topic.     

Evaluating health care work settings: A holistic conceptual framework

Abstract

After offering a systems perspective that considers a diversity of job-related and personal factors, we discuss the determinants and impacts of health care work climates and how staff morale and performance can influence the treatment milieu and quality of patient care. We also describe the physical features, organizational structure and policies, and suprapersonal and task factors that help to shape health care work climates. We then review research on the connections between work climate and staff morale and performance, the interplay of work climate factors, and the role of personal factors in these relationships. Finally, we orovide some ideas about how to improve health care work settings and focus on some promising new research directions.