Fin whale song evolution in the North Atlantic.

Animal songs can change within and between populations as the result of different evolutionary processes. When these processes include cultural transmission, the social learning of information or behaviours from conspecifics, songs can undergo rapid evolutions because cultural novelties can emerge more frequently than genetic mutations. Understanding these song variations over large temporal and spatial scales can provide insights into the patterns, drivers and limits of song evolution that can ultimately inform on the species' capacity to adapt to rapidly changing acoustic environments. Here, we analysed changes in fin whale (Balaenoptera physalus) songs recorded over two decades across the central and eastern North Atlantic Ocean. We document a rapid replacement of song INIs (inter-note intervals) over just four singing seasons, that co-occurred with hybrid songs (with both INIs), and a clear geographic gradient in the occurrence of different song INIs during the transition period. We also found gradual changes in INIs and note frequencies over more than a decade with fin whales adopting song changes. These results provide evidence of vocal learning in fin whales and reveal patterns of song evolution that raise questions on the limits of song variation in this species.

Comparación del estilo personal del terapeuta y dimensiones de personalidad antes y después de las prácticas clínicas pre-profesionales en estudiantes de psicología / Comparison of Therapist Personal Style and Personality Dimensions before and after pre-professional clinical practice in psychology students

En los últimos años, se ha formado un cuerpo creciente de investigación sobre el estilo personal del terapeuta, entendido como un modo propio y personal de ejercer en la clínica (Fernández-Álvarez & García, 1998). Su profundización ha permitido conocer cómo se asocia con el ámbito de trabajo, la línea teórica y la personalidad. No obstante, pocos son los estudios que han investigado este constructo en estudiantes. Por tanto, se pretende evaluar si existen modificaciones en el estilo y en la personalidad tras el entrenamiento clínico en la carrera de grado, y analizar las relaciones entre ambos aspectos. Se trabajó con 77 estudiantes del último año de psicología, que fueron evaluados antes y después de sus prácticas pre-profesionales clínicas con el Cuestionario de Estilo Personal del Terapeuta (Fernández-Álvarez et al., 2003) y el Big Five Inventory (John, 1990). Los resultados apuntan a un aumento de la cercanía emocional y una menor rigidez en el encuadre terapéutico, así como un incremento de la sociabilidad y de la estabilidad emocional luego de las prácticas. El modo en que se relacionan estos factores presenta variaciones respecto estudios con terapeutas en ejercicio, lo que da cuenta de que existen importantes diferencias entre ambos grupos

In recent years, a growing body of research has been conducted on the personal style of the therapist, understood as a personal way of practising in the clinic (Fernández-Álvarez & García, 1998). Its deepening has allowed us to know how it is associated with the field of work, the theoretical line and personality. However, few studies have investigated this construct in students. Therefore, the aim was to assess whether there are modifications in style and personality after undergraduate clinical training and to analyse the relationships between both aspects. We worked with 77 final-year psychology students assessed before and after their pre-professional clinical practice with the Therapist Personal Style Questionnaire (Fernández-Álvarez et al., 2003) and the Big Five Inventory (John, 1990). The results point to an increase in emotional closeness and less rigidity in the therapeutic setting and an increase in sociability and emotional stability after the internship. The relations among these factors show variations regarding studies with practising therapists, which shows that there are essential differences between the two groups