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Total of 28 results See all subject areas
neuroscience

Based on psychophysical evidence about how learning of visuomotor transformation generalizes, it has been suggested that movements are planned on the basis of movement direction and magnitude, i.e., the vector connecting movement origin and targets. This notion...

["Neuroscience"]
doi:10.7717/peerj.342

Castration can change levels of plasma testosterone. Androgens such as testosterone play an important role in stabilizing birdsong. The robust nucleus of the arcopallium (RA) is an important premotor nucleus critical for singing. In this study, we investigated...

["Animal Behavior","Neuroscience"]
doi:10.7717/peerj.352

Objective. To examine the factors predicting changes in language skills between 2 and 3 years.Methods. By using longitudinal data concerning 1002 children from the EDEN study, linear regression was used to predict 3-year language performance from 2-year language...

["Neuroscience","Cognitive Disorders","Epidemiology"]
doi:10.7717/peerj.335

Purpose. People with stroke living in the community have an increased prevalence of depression and lower quality of life than healthy older adults. This cross-sectional observational study investigated whether participation in regular exercise was associated with...

["Neuroscience","Cognitive Disorders","Neurology","Public Health"]
doi:10.7717/peerj.331

Auditory Scene Analysis provides a useful framework for understanding atypical auditory perception in autism. Specifically, a failure to segregate the incoming acoustic energy into distinct auditory objects might explain the aversive reaction autistic individuals...

["Neuroscience","Cognitive Disorders","Psychiatry and Psychology"]
doi:10.7717/peerj.261

Interest in instrumental learning in earthworms dates back to 1912 when Yerkes concluded that they can learn a spatial discrimination in a T-maze. Rosenkoetter and Boice determined in the 1970s that the “learning” that Yerkes observed was probably chemotaxis and...

["Animal Behavior","Neuroscience"]
doi:10.7717/peerj.250

Evaluating the familiarity of faces is critical for social animals as it is the basis of individual recognition. In the present study, we examined how face familiarity is reflected in neural activities in our closest living relative, the chimpanzee. Skin-surface...

["Animal Behavior","Evolutionary Studies","Neuroscience","Psychiatry and Psychology"]
doi:10.7717/peerj.223

To date, anticonvulsant effects of the plant cannabinoid, cannabidivarin (CBDV), have been reported in several animal models of seizure. However, these behaviourally observed anticonvulsant effects have not been confirmed at the molecular level. To examine changes...

["Molecular Biology","Neuroscience","Neurology","Pharmacology"]
doi:10.7717/peerj.214

Background. This study’s goal was to provide dose–response data for a dopamine agonist in the baboon using standard methods (replicate measurements at each dose, across a range of doses), as a standard against which to subsequently validate a novel pharmacological...

["Neuroscience","Diabetes and Endocrinology","Pharmacology","Radiology and Medical Imaging"]
doi:10.7717/peerj.195

Changes in hormones can affect many types of learning in vertebrates. Adults experience fluctuations in a multitude of hormones over a temporal scale, from local, rapid action to more long-term, seasonal changes. Endocrine changes during development can affect...

["Animal Behavior","Neuroscience"]
doi:10.7717/peerj.150

NA-glycine is an endogenous lipid molecule with analgesic properties, which is structurally similar to the endocannabinoids 2-AG and anandamide but does not interact with cannabinoid receptors. NA-glycine has been suggested to act at the G-protein coupled receptors...

["Biochemistry","Neuroscience","Pharmacology"]
doi:10.7717/peerj.149

Scientific reproducibility has been at the forefront of many news stories and there exist numerous initiatives to help address this problem. We posit that a contributor is simply a lack of specificity that is required to enable adequate research reproducibility....

["Cell Biology","Developmental Biology","Neuroscience","Immunology","Science Policy"]
doi:10.7717/peerj.148

Perceived brightness of a stimulus depends on the background against which the stimulus is set, a phenomenon known as simultaneous contrast. For instance, the same gray stimulus can look light against a black background or dark against a white background. Here...

["Neuroscience"]
doi:10.7717/peerj.146

Background. Normally one habituates rapidly to steady, faint sensations. People with sensory hypersensitivity (SH), by contrast, continue to attend to such stimuli and find them noxious. SH is common in Tourette syndrome (TS) and autism, and methods to quantify...

["Neuroscience","Neurology","Psychiatry and Psychology"]
doi:10.7717/peerj.121

Stationary targets can fade perceptually during steady visual fixation, a phenomenon known as Troxler fading. Recent research found that microsaccades—small, involuntary saccades produced during attempted fixation—can restore the visibility of faded targets, both...

["Neuroscience"]
doi:10.7717/peerj.119

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