Yuki Yamada

Yuki Yamada
Kyushu University | Kyudai · Faculty of Arts and Science

Ph.D.

About

237
Publications
39,160
Reads
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1,285
Citations
Additional affiliations
October 2013 - present
Kyushu University
Position
  • Professor (Associate)
May 2012 - September 2013
Kyushu University
Position
  • Collaborative Researcher
April 2012 - September 2013
Yamaguchi University
Position
  • Professor (Assistant)
Education
April 2006 - March 2008
Kyushu University
Field of study
  • Psychology
April 2004 - March 2006
Kyushu University
Field of study
  • Psychology
April 2000 - March 2004
Hiroshima University
Field of study
  • Psychology

Publications

Publications (237)
Article
One major source of exhaustion for researchers is the redundant paperwork of three different documents—research papers, ethics review applications, and research grant applications—for the same research plan. This is a wasteful and redundant process for researchers, and it has a more direct impact on the career development of early-career researcher...
Article
Full-text available
People across the world and throughout history have gone to great lengths to enhance their physical appearance. Evolutionary psychologists and ethologists have largely attempted to explain this phenomenon via mating preferences and strategies. Here, we test one of the most popular evolutionary hypotheses for beauty-enhancing behaviors, drawn from m...
Article
Full-text available
Some journals and publishers offer a free or paid rapid peer review service. In the latter case, such a service is offered at a premium, i.e., for an additional fee, and authors receive, in return, a privileged service, namely faster peer review. In the cut-throat world of survival in academia, the difference of a few weeks or months in terms of sp...
Article
Full-text available
The COVID-19 pandemic (and its aftermath) highlights a critical need to communicate health information effectively to the global public. Given that subtle differences in information framing can have meaningful effects on behavior, behavioral science research highlights a pressing question: Is it more effective to frame COVID-19 health messages in t...
Article
Full-text available
The COVID-19 pandemic has increased negative emotions and decreased positive emotions globally. Left unchecked, these emotional changes might have a wide array of adverse impacts. To reduce negative emotions and increase positive emotions, we tested the effectiveness of reappraisal, an emotion-regulation strategy that modifies how one thinks about...
Preprint
People feel some events to be psychologically closer, while others to be farther away. Caruso et al. (2013) reported the Temporal Doppler Effect (TDE), in which people feel that the past is farther than the future, despite an equivalent objective temporal distance. They hypothesized that movement based on the spatio-temporal metaphor implies an asy...
Article
Full-text available
Economic inequality is associated with preferences for smaller, immediate gains over larger, delayed ones. Such temporal discounting may feed into rising global inequality, yet it is unclear whether it is a function of choice preferences or norms, or rather the absence of sufficient resources for immediate needs. It is also not clear whether these...
Article
Full-text available
At the beginning of 2020, COVID-19 became a global problem. Despite all the efforts to emphasize the relevance of preventive measures, not everyone adhered to them. Thus, learning more about the characteristics determining attitudinal and behavioral responses to the pandemic is crucial to improving future interventions. In this study, we applied ma...
Article
Background: Previous studies have shown that the association between smiling and youth is a misconception; smiling faces have been estimated to be older than neutral faces. Previous studies have indicated that this aging effect of smiling (AES) is due to eye wrinkles caused by the facial action of smiling. However, whether holistic processing for f...
Article
Full-text available
During the onset of the COVID-19 pandemic, the COVIDiSTRESS Consortium launched an open-access global survey to understand and improve individuals' experiences related to the crisis. a year later, we extended this line of research by launching a new survey to address the dynamic landscape of the pandemic. this survey was released with the goal of a...
Article
Full-text available
The study of moral judgements often centres on moral dilemmas in which options consistent with deontological perspectives (that is, emphasizing rules, individual rights and duties) are in conflict with options consistent with utilitarian judgements (that is, following the greater good based on consequences). Greene et al. (2009) showed that psychol...
Article
Full-text available
Significance Communicating in ways that motivate engagement in social distancing remains a critical global public health priority during the COVID-19 pandemic. This study tested motivational qualities of messages about social distancing (those that promoted choice and agency vs. those that were forceful and shaming) in 25,718 people in 89 countries...
Article
Full-text available
Background The COVID-19 pandemic has been declared a public health emergency of international concern, causing excessive anxiety among health care workers. Additionally, publication bias and low-quality publications have become widespread, which can result in the dissemination of unreliable information. A meta-analysis was performed for this study...
Article
Background: Previous studies have shown that the association between smiling and youth is a misconception; smiling faces have been estimated to be older than neutral faces. Previous studies have indicated that this aging effect of smiling (AES) is due to eye wrinkles caused by the facial action of smiling. However, whether holistic processing for f...
Article
Background: Previous studies have shown that the association between smiling and youth is a misconception; smiling faces have been estimated to be older than neutral faces. Previous studies have indicated that this aging effect of smiling (AES) is due to eye wrinkles caused by the facial action of smiling. However, whether holistic processing for f...
Preprint
In null hypothesis significance testing, it is important how sample size has been determined (i.e., sample size justification) before data collection. Here we introduce a new questionable research practice related to sample size justification: Sampling planning after the results are known (SPARKing). This paper shows two representative cases of SPA...
Preprint
An object that has been in physical contact with an immoral person is contaminated with the characteristics of the immoral person even after a single instance of contact (contagion of moral disgust). We refuse and are disgusted by the object. Previous studies have examined the contagion of moral disgust from person to objects, but the occurrence of...
Article
Yarkoni's analysis clearly articulates a number of concerns limiting the generalizability and explanatory power of psychological findings, many of which are compounded in infancy research. ManyBabies addresses these concerns via a radically collaborative, large-scale and open approach to research that is grounded in theory-building, committed to di...
Article
Full-text available
Open scholarship has transformed research, and introduced a host of new terms in the lexicon of researchers. The ‘Framework for Open and Reproducible Research Teaching’ (FORRT) community presents a crowdsourced glossary of open scholarship terms to facilitate education and effective communication between experts and newcomers.
Preprint
The Open Science Framework (OSF) is an important and useful platform for researchers to practice open science. However, the OSF has recently been misused for criminal purposes, especially search boards for watching pirated copyright works and leading to phishing sites. This misuse can negatively influence the OSF server function; therefore, it is i...
Article
Full-text available
Changing collective behaviour and supporting non-pharmaceutical interventions is an important component in mitigating virus transmission during a pandemic. In a large international collaboration (Study 1, N = 49,968 across 67 countries), we investigated self-reported factors associated with public health behaviours (e.g., spatial distancing and str...
Article
Full-text available
A continued lack of clarity persists because academics, policymakers, and other interested parties are unable to clearly define what is a “predatory” journal or publisher, and a potentially wide gray zone exists there. In this perspective, we argue that journals should be evaluated on a continuum, and not just in two shades, black and white. Since...
Article
Full-text available
Objective The clone devaluation is a phenomenon reported by the latest paper in which eeriness is evoked when people observe individuals with the same face (clone faces) compared to those with different faces. There are two possibilities that explain the clone devaluation effect. One is that the same facial features that clone faces have (duplicati...
Preprint
Full-text available
Economic inequality is associated with extreme preferences for smaller, immediate gains over larger, delayed ones. This pattern, known as temporal discounting, may feed into rising global inequality, yet it is unclear if it is a function of choice preferences or norms, or rather the absence of sufficient resources to meet immediate needs. It is als...
Preprint
One major source of high exhaustion for researchers is the redundant paperwork of three different documents (research papers, applications for ethics review, and applications for research grants) for the same research plan. These similar documents are submitted to three different organizations, each with its own format, and independently peer-revie...
Article
Full-text available
In the risky-choice framing effect, different wording of the same options leads to predictably different choices. In a large-scale survey conducted from March to May 2020 and including 88,181 participants from 47 countries, we investigated how stress, concerns, and trust moderated the effect in the Disease problem, a prominent framing problem highl...
Preprint
The Japanese Journal of Psychology published its first special issue on the occasion of the unprecedented crisis caused by COVID-19, and called for submissions. While the result has been a very large number of papers with a great variety accepted for publication, a number of challenges have also emerged. Hopefully, this special issue will be a valu...
Article
Full-text available
The COVID-19 pandemic has increased negative emotions and decreased positive emotions globally. Left unchecked, these emotional changes might have a wide array of adverse impacts. To reduce negative emotions and increase positive emotions, we tested the effectiveness of reappraisal, an emotion-regulation strategy that modifies how one thinks about...
Article
Full-text available
The COVID-19 pandemic has increased negative emotions and decreased positive emotions globally. Left unchecked, these emotional changes might have a wide array of adverse impacts. To reduce negative emotions and increase positive emotions, we tested the effectiveness of reappraisal, an emotion-regulation strategy that modifies how one thinks about...
Preprint
Background. The COVID-19 pandemic has been declared a public health emergency of international concern; this has caused excessive anxiety among health care workers. In addition, publication bias and low-quality publications have become widespread, which can result in the dissemination of unreliable findings.This paper performed a meta-analysis with...
Article
Full-text available
Technological advances in robotics have already produced robots that are indistinguishable from human beings. This technology is overcoming the uncanny valley, which refers to the unpleasant feelings that arise from humanoid robots that are similar in appearance to real humans to some extent. If humanoid robots with the same appearance are mass-pro...
Article
Full-text available
When people are confronted with health proposals during the coronavirus disease 2019 (COVID-19) pandemic, it has been suggested that fear of COVID-19 can serve protective functions and ensure public health compliance. However, health proposal repetition and its perceived efficacy also influence the behavior intention toward the proposal, which has...
Article
In the midst of the current reproducibility crisis in psychology, pre-registration is considered a remedy to increase the reliability of psychological research. However, because pre-registration is an unconventional practice for most psychological researchers, they find it difficult to introduce pre-registration into their studies. To promote pre-r...
Article
Full-text available
An expression of concern (EoC) alerts readers to new considerations or concerns about a paper, usually at the post-publication stage. Authors and readers are left in a state of uncertainty as they await a resolution. This uncertainty might create a state of stress or anxiety for some authors. The paper's findings may be either validated and confirm...
Preprint
Full-text available
The paper reports findings from a crowdsourced replication. Eighty-four replicator teams attempted to verify results reported in an original study by running the same models with the same data. The replication involved an experimental condition. A “transparent” group received the original study and code, and an “opaque” group received the same unde...
Preprint
BACKGROUND The COVID-19 pandemic has been declared a public health emergency of international concern; this has caused excessive anxiety among health care workers. In addition, publication bias and low-quality publications have become widespread, which can result in the dissemination of unreliable findings. OBJECTIVE This paper presents the proto...
Preprint
Yarkoni’s analysis clearly articulates a number of concerns limiting the generalizability and explanatory power of psychological findings, many of which are compounded in infancy research. ManyBabies addresses these concerns via a radically collaborative, large-scale and open approach to research that is grounded in theory-building, committed to di...
Article
Full-text available
this N = 173,426 social science dataset was collected through the collaborative COVIDiSTRESS Global Survey-an open science effort to improve understanding of the human experiences of the 2020 COVID-19 pandemic between 30th March and 30th May, 2020. The dataset allows a cross-cultural study of psychological and behavioural responses to the Coronavir...
Preprint
Full-text available
Findings from 162 researchers in 73 teams testing the same hypothesis with the same data reveal a universe of unique analytical possibilities leading to a broad range of results and conclusions. Surprisingly, the outcome variance mostly cannot be explained by variations in researchers’ modeling decisions or prior beliefs. Each of the 1,261 test mod...
Preprint
Technological advances in robotics have already produced robots that are indistinguishable from human beings. This technology is overcoming the uncanny valley, which refers to the unpleasant feelings that arise from humanoid robots that are similar in appearance to real humans to some extent. If humanoid robots with the same appearance are mass-pro...
Article
Full-text available
this N = 173,426 social science dataset was collected through the collaborative COVIDiSTRESS Global Survey-an open science effort to improve understanding of the human experiences of the 2020 COVID-19 pandemic between 30th March and 30th May, 2020. The dataset allows a cross-cultural study of psychological and behavioural responses to the Coronavir...
Article
Full-text available
The COVIDiSTRESS global survey collects data on early human responses to the 2020 COVID-19 pandemic from 173 429 respondents in 48 countries. The open science study was co-designed by an international consortium of researchers to investigate how psychological responses differ across countries and cultures, and how this has impacted behaviour, copin...
Preprint
When people are confronted with health proposals during the coronavirus disease 2019 (COVID-19) pandemic, it has been suggested that fear of COVID-19 can serve protective functions and ensure public health compliance. However, health proposal repetition and its perceived efficacy also influence the behavior intention toward the proposal, which has...
Article
Full-text available
The COVIDiSTRESS global survey collects data on early human responses to the 2020 COVID-19 pandemic from 173 429 respondents in 48 countries. The open science study was co-designed by an international consortium of researchers to investigate how psychological responses differ across countries and cultures, and how this has impacted behaviour, copin...
Preprint
In the midst of the current reproducibility crisis in psychology, pre-registration is considered a remedy to increase the reliability of psychological research. However, as pre-registration is an unconventional practice for most psychological researchers, they find it difficult to introduce pre-registration into their studies. In order to promote p...
Article
Full-text available
Predatory journals often prey on innocent researchers who are unaware of the threat they pose. This paper discusses what researchers can do if they unintentionally publish a paper in a predatory journal, including measures to take before submission, during peer review, and after the journal has accepted a manuscript. The specific recommendations di...
Article
Full-text available
Smiling is believed to make people look younger. Ganel and Goodale (Psychon Bull Rev 25(6):612–616, 10.3758/s13423-017-1306-8 , 2018) proposed that this belief is a misconception rooted in popular media, based on their findings that people actually perceive smiling faces as older. However, they did not clarify whether this misconception can be gene...
Article
Full-text available
This N = 173,426 social science dataset was collected through the collaborative COVIDiSTRESS Global Survey-an open science effort to improve understanding of the human experiences of the 2020 COVID-19 pandemic between 30th March and 30th May, 2020. The dataset allows a cross-cultural study of psychological and behavioural responses to the Coronavir...
Article
Full-text available
this N = 173,426 social science dataset was collected through the collaborative COVIDiSTRESS Global Survey-an open science effort to improve understanding of the human experiences of the 2020 COVID-19 pandemic between 30th March and 30th May, 2020. The dataset allows a cross-cultural study of psychological and behavioural responses to the Coronavir...
Preprint
Smiling is believed to make people look younger. Ganel and Goodale (2018) proposed that this belief is a misconception rooted in popular media, based on their findings that people actually perceive smiling faces as older. However, they did not clarify whether this misconception can be generalized across cultures. We tested the cross-cultural validi...
Article
Full-text available
Despite the considerable amount of research devoted to understanding fraud, few studies have examined how the physical environment can influence the likelihood of committing fraud. One recent study found a link between room brightness and occurrence of human fraud behaviors. Therefore, the present study aims to investigate how temperature may affec...
Preprint
Full-text available
In the risky-choice framing effect, different wording of the same options leads to predictably different choices. In a large-scale survey conducted from March to May 2020 and including 88,181 participants from 47 countries, we investigated how stress, concerns, and trust moderated the effect in the Disease problem, a prominent framing problem highl...
Article
Full-text available
In psychology, a Registered Reports system is key to preventing questionable research practices. Under this system, manuscripts, including their detailed protocols (i.e., hypothesis, experimental design, sample size, and methods of statistical analysis), are reviewed prior to data collection. If a protocol manuscript is accepted, publication of the...
Article
Background The COVID-19 pandemic has been declared a public health emergency of international concern; this has caused excessive anxiety among health care workers. In addition, publication bias and low-quality publications have become widespread, which can result in the dissemination of unreliable findings. Objective This paper presents the protoc...
Article
Full-text available
Background: Differences in descriptions can influence people’s evaluations and behaviors. A previous study by Bryan and colleagues suggested that subtle linguistic differences in ethical reminders can differentially prevent readers’ unethical behavior. The present study tried to replicate the previous finding in the Japanese context (Experiment 1);...
Article
Full-text available
When people are confronted with health proposals during the coronavirus disease 2019 (COVID-19) pandemic, it has been suggested that fear of COVID-19 can serve protective functions and ensure public health compliance. However, health proposal repetition and its perceived efficacy also influence the behavior intention toward the proposal, which has...
Preprint
Predatory journals prey on innocent researchers who are unaware of the threat they pose. This paper discusses what researchers can do if they submit a paper to a predatory journal, including measures to take before submission, during peer review, and after the journal has accepted a manuscript. The specific recommendations discussed are pre-registr...
Preprint
When people are confronted with health proposals during the coronavirus disease 2019 (COVID-19) pandemic, it has been suggested that fear of COVID-19 can serve protective functions and ensure public health compliance. However, health proposal repetition and its perceived efficacy also influence the behavior intention toward the proposal, which has...