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We published a study recently testing the link between brain size and behavioural plasticity using brain size selected guppy (Poecilia reticulata) lines (Herczeg et al. 2019. Journal of Evolutionary Biology 32(3):218-226). Only large brained fish showed habituation to a new, perceived as risky, but actually harmless environment by increasing movement activity over the 20 days observation period. We concluded that "Our results suggest that brain size likely explains some of the variation in behavioural plasticity found at the intraspecific level". In a commentary to be published in the same journal, Haave-Audet et al. challenged the main message of our study, stating that (i) relative brain size is not a suitable proxy for cognitive ability and (ii) habituation measured by us is likely not adaptive and costly. In our response, we first show that a decade's work have proven repeatedly that relative brain size is indeed positively linked to cognitive performance in our model system. Second, we discuss how switching from stressed to unstressed behaviour in stressful situations without real risk is likely to be adaptive. Finally, we point out that the main cost of behavioural plasticity in our case is the development and maintenance of the neural system needed for information processing and not the expression of plasticity. We hope that our discussion with Haave-Audet et al. helps clarifying some central issues in this emerging research field.
This article was published in the following journal.
Name: Journal of evolutionary biology
Nursing professional development practitioners often question whether a particular outcome measure is a good one for their activity. Asked by itself, there is no way to answer that question. This arti...
The original HTML version of this Article had an incorrect Published online date of 25 December 2019; it should have been 21 March 2019. This has been corrected in the HTML version of the Article. Th...
Three experiments in human predictive learning assessed the modulating role of instructions on context-switch effects on performance after different levels of training. Cue X (a food name) was paired ...
In this issue of Cell, Zhang and Yatsev, 2019 and Kingsbury et al. (2019) provide insight into the emergence of synchronized neuronal activity between prefrontal cortices of two brains that share the...
This study is a First-In-Human clinical trial to assess the safety and preliminary efficacy of VK-2019, an orally administered EBNA1 inhibitor, for the treatment of patients with advanced ...
This prospective pre and post-quasi-descriptive single group interventional study will be done at urology and nephrology center -Mansoura University during the year 2019, for a 3-month dur...
The primary objectives of this study are: - To describe the immunogenicity of the 2018-2019 formulation of Fluzone Quadrivalent vaccine in children 6 to < 36 months of age and 3 t...
There is little evidence on how best to present diagnostic and treatment effect information to dentists and whether this makes any difference to their understanding of the information give...
The primary objective of the study is to provide sera (collected from participants before vaccination and after final vaccination) to the Center for Biologics Evaluation and Research (CBER...
A nursing specialty created to answer the need for developing a global perspective in the practice of nursing in a world of interdependent nations and people. The focus of this nursing discipline is on the integration of international and transcultural content into the training. Courses include study in the area of cultural differences, nursing in other countries, and international health issues and organizations, as an example.
The act, process, or an instance of narrating, i.e., telling a story. In the context of MEDICINE or ETHICS, narration includes relating the particular and the personal in the life story of an individual.
Customary standards that govern behavior in groups, cultures, or societies. They reflect what a group deems acceptable in a social context in terms of appropriate and inappropriate values, beliefs, attitudes, and behaviors.
The absence of certain expected and acceptable cultural phenomena in the environment which results in the failure of the individual to communicate and respond in the most appropriate manner within the context of society. Language acquisition and language use are commonly used in assessing this concept.
A chronic, acquired, idiopathic, progressive eruption of the skin that occurs in the context of RENAL FAILURE. It is sometimes accompanied by systemic fibrosis. The pathogenesis seems to be multifactorial, with postulated involvement of circulating fibrocytes. There is a strong association between this disorder and the use of gadolinium-based contrast agents.