Search results for "Behavior"
showing 10 items of 13975 documents
The perception of odor objects in everyday life: a review on the processing of odor mixtures
2014
International audience; Smelling monomolecular odors hardly ever occurs in everyday life, and the daily functioning of the sense of smell relies primarily on the processing of complex mixtures of volatiles that are present in the environment (e.g., emanating from food or conspecifics). Such processing allows for the instantaneous recognition and categorization of smells and also for the discrimination of odors among others to extract relevant information and to adapt efficiently in different contexts. The neurophysiological mechanisms underpinning this highly efficient analysis of complex mixtures of odorants is beginning to be unraveled and support the idea that olfaction, as vision and au…
The Interplay between Musical and Linguistic Aptitudes: A Review.
2011
According to prevailing views, brain organization is modulated by practice, e.g., during musical or linguistic training. Most recent results, using both neuropsychological tests and brain measures, revealed an intriguing connection between musical aptitude and second language linguistic abilities. A significant relationship between higher musical aptitude, better second language pronunciation skills, accurate chord discrimination ability, and more prominent sound-change-evoked brain activation in response to musical stimuli was found. Moreover, regular music practice may also have a modulatory effect on the brain’s linguistic organization and alter hemispheric functioning in those who have …
Anger: Adrenaline receptors do not allow us to be too sinful
2013
All of us feel angry once in a while, but if anger turns into a chronic state of mind it is not only annoying to those around us, it may also make us ill. Much of the acute anger reaction is mediated by catecholamines acting on β-adrenoceptors. Chronic activation of these receptors leads to their desensitization, protecting us at least partly from the adverse effects of sustained anger.
IMPROVEMENT OF PHONOLOGICAL SKILLS – IMPROVEMENT OF READING
2020
The article “Improvement of Phonological Skills – Improvement of Reading” underlines the importance of phonological awareness in the development of reading skills. Several studies show that reading is a very complex skill that involves cognitive processes, intellect and other variables, but the key factor for the development of good reading skills is a good level of phonological awareness.Before the intervention a special material was created, which was systematically ordered according to the current level of each child’s phonological awareness abilities. Children were evaluated before and after the intervention.The aim of this research is to evaluate the possibility to develop good phonolo…
Do highly ornamented and less parasitized males have high quality sperm? - an experimental test for parasite-induced reproductive trade-offs in Europ…
2014
Parasites take their resources from hosts and thus directly reduce available resources for hosts’ own body functions, such as growth and reproduction. Furthermore, parasite infections cause significant indirect costs to their hosts in terms of increased investments on immune defense. In this study, we investigated the impact of parasite infection on the sperm quality and expression of secondary sexual ornamentation (saturation of the red abdominal colouration and number of breeding tubercles) in the Eurasian minnow (Phoxinus phoxinus). We exposed minnows to a high and low dose of common nonspecific fish ectoparasite, the glochidia larvae of duck mussel (Anodonta anatina) and tested whether …
Maternal homework assistance and children's task-persistent behavior in elementary school
2018
Abstract The present study used a sample of 365 children to investigate the longitudinal associations between maternal homework assistance (i.e., help, monitoring, and autonomy granting) and children's task-persistent behavior in learning situations from grade 2 to grade 4 of elementary school. Also, the extent to which task-persistent behavior plays a role in the links between parental homework assistance and children's academic performance was examined. The results showed that the more autonomy granting mothers reported, the more task-persistent behavior children exhibited; and more task-persistent behavior children exhibited, the more autonomy their mothers granted. In contrast, the more…
Vocational teachers’ pathways in the course of a curriculum reform
2011
Teachers face continuous changes, many of which significantly influence their professional identities and work practices. This study investigates Finnish vocational teachers’ pathways in the course of a curriculum reform. The data were obtained by interviewing 14 vocational teachers twice, i.e. at the initial and later stages of the reform. This study used a narrative approach to analyse the interviews as whole and also to illustrate variations between teachers. The teachers were found to exhibit distinctive pathways through the reform: an empowerment pathway, a critical but adaptive pathway, an open and expectant pathway, a successful transformation pathway, and a struggling pathway. The p…
Midlife in the United States (MIDUS 2): Biomarker Project, 2004-2009
2010
These data are being released in BETA version to facilitate early access to the study for research purposes. This collection has not been fully processed by NACDA or ICPSR at this time; the original materials provided by the principal investigator were minimally processed and converted to other file types for ease of use. As the study is further processed and given enhanced features by ICPSR, users will be able to access the updated versions of the study. Please report any data errors or problems to user support and we will work with you to resolve any data related issues.The Biomarker study is Project 4 of the MIDUS longitudinal study, a national survey of more than 7,000 Americans (aged 2…
Data from: Gene expression patterns underlying parasite-induced alterations in host behaviour and life history
2015
Many parasites manipulate their hosts’ phenotype. In particular, parasites with complex life cycles take control of their intermediate hosts’ behaviour and life history to increase transmission to their definitive host. The proximate mechanisms underlying these parasite-induced alterations are poorly understood. The cestode Anomotaenia brevis affects the behaviour, life history and morphology of parasitized Temnothorax nylanderi ants and indirectly of their unparasitized nestmates. To gain insights on how parasites alter host phenotypes, we contrast brain gene expression patterns of T. nylanderi workers parasitized with the cestode, their unparasitized nestmates and unparasitized workers fr…
Data from: Highly asymmetric fine-scale genetic structure between sexes of African striped mice and indication for condition dependent alternative ma…
2011
Sex-biased dispersal is observed in many taxa, but few studies have compared sex-biased dispersal among and within populations. We addressed the magnitude and habitat dependency of sex-biased dispersal in social African striped mice by separating group-related from population-related genetic variance to understand the contribution of each sex to deme structure. As dispersal over unoccupied habitat is likely to be more costly than dispersal within a population, we predicted that individuals leaving the natal population have a lower body condition, being inferior to heavier territorial individuals. Fine-scale genetic structure was detected in both sexes. Female relatedness decreased continuou…