Preprints (not yet peer-reviewed)

34 downloads
227 views

Background. High talker variability (i.e. multiple voices in the input) has been found effective in training non-native phonetic contrasts in adults. A small number of studies suggest that children also benefit from high-variability phonetic training with some...

["Psychiatry and Psychology","Computational Science"]
doi:10.7287/peerj.preprints.2870v2
47 downloads
126 views

Objective: The purpose of this study was to demonstrate the effects of the achievement motive on important variables such as the purpose in life and social participation with objective physical functions in predicting within-person fluctuations and between-person...

["Evidence Based Medicine","Geriatrics","Psychiatry and Psychology"]
doi:10.7287/peerj.preprints.2801v1
2,575 downloads
6,434 views

Background: Lack of agreement about criteria and terminology for children’s language difficulties affects access to services as well as hindering research and practice. We report the second phase of a study using an online Delphi method to address these issues....

["Cognitive Disorders","Pediatrics","Psychiatry and Psychology"]
doi:10.7287/peerj.preprints.2484v2
273 downloads
505 views

This study was conducted to investigate the theory of dual coding on remembering words, by testing whether concrete words are better recalled than abstract words. A total of 298 (from Asian ethnicity) participants took part in this study. The participants were...

["Psychiatry and Psychology","Statistics"]
doi:10.7287/peerj.preprints.2719v1
94 downloads
444 views

Measurement of pupil size (pupillometry) has recently gained renewed interest from psychologists, but there is little agreement on how pupil-size data is best analyzed. Here we focus on one aspect of pupillometric analyses: baseline correction, that is, analyzing...

["Neuroscience","Ophthalmology","Psychiatry and Psychology","Statistics"]
doi:10.7287/peerj.preprints.2725v1
246 downloads
622 views

While the term ‘‘psychopathy’’ is embedded with negativity, evidence points to the existence of another form of psychopathy, which involves adaptive traits such as stress and anxiety immunity, remarkable social skills, noteworthy leadership ability, and an absence...

["Cognitive Disorders","Psychiatry and Psychology"]
doi:10.7287/peerj.preprints.2081v3
489 downloads
662 views

A novel model is presented to explain human social behavior. In recent years, a cephalo-caudal directionality to behavior has been reported in a few mammals including rodents, cattle and cats. This model shows how complex human behavior also follows this rule of...

["Animal Behavior","Psychiatry and Psychology"]
doi:10.7287/peerj.preprints.127v3
206 downloads
538 views

Misconceptions about the assumptions behind the standard linear regression model are widespread and dangerous. These lead to using linear regression when inappropriate, and to employing alternative procedures with less statistical power when unnecessary. Our systematic...

["Psychiatry and Psychology","Statistics"]
doi:10.7287/peerj.preprints.2602v1
136 downloads
506 views

Humans are highly adept at categorizing visual stimuli, but studies of human categorization are typically validated by verbal reports. This makes it difficult to perform comparative studies of categorization using non-human animals. Interpretation of comparative...

["Animal Behavior","Psychiatry and Psychology"]
doi:10.7287/peerj.preprints.967v3
383 downloads
313 views

Background: Although Perceived Stress Scale (PSS, Cohen, Kamarack, Mermelstein, 1983) has been validated and widely used in many domains, there is still no validation in sports by comparing athletes and non-athletes and examining related psychometric indices. Purpose:...

["Kinesiology","Psychiatry and Psychology"]
doi:10.7287/peerj.preprints.2268v2
49 downloads
166 views

The purpose of the study was to investigate the characteristics of the attentional network in college table tennis athletes. A total of 65 college students categorized as table tennis athlete group or non-athlete group participated in the study. All participants...

["Neuroscience","Kinesiology","Psychiatry and Psychology"]
doi:10.7287/peerj.preprints.2508v1
101 downloads
227 views

As such, video games are enjoyed most when the level and speed of the game match the players’ skills. An optimal balance between challenges and skills triggers the subjective experience of “flow”, a focused motivation leading to a feeling of spontaneous joy. Here...

["Neuroscience","Psychiatry and Psychology"]
doi:10.7287/peerj.preprints.2482v1
23 downloads
128 views

Background: Achievement motive is expected to prevent lack of self-efficacy and hope, which negatively impact rehabilitation support, health, and psychological well-being. It has been indicated that the factor structure of the Scale for Achievement Motive in Rehabilitation...

["Epidemiology","Evidence Based Medicine","Geriatrics","Psychiatry and Psychology","Public Health"]
doi:10.7287/peerj.preprints.2459v1
29 downloads
204 views

The study of subjective, first-person experience is a topic with both philosophical and practical implications. In this article, I discuss the value of collecting a critical mass of prose or verbal descriptions of introspectively determined, subjective effects...

["Toxicology","Evidence Based Medicine","Neurology","Pharmacology","Psychiatry and Psychology"]
doi:10.7287/peerj.preprints.2424v1
59 downloads
203 views

Fibroblast growth factors (FGFs) and their receptors (FGFRs) have numerous functions in the developing and adult CNS. For example, the FGFR1 receptor is important for proliferation of radial glial cells in the cortex and hippocampus, oligodendrocyte proliferation...

["Cell Biology","Developmental Biology","Neuroscience","Psychiatry and Psychology"]
doi:10.7287/peerj.preprints.2343v1
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