D J Kruger
Datos Biográficos
| ID | 4884 |
|---|---|
| NOMBRE | D J Kruger |
| NOMBRES | D J |
| APELLIDO | Kruger |
| FIRMA | KRUGER D J |
| AFILIACIONES | University of Michigan |
| ORCID | 0000-0002-2757-7016 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 78 |
| TOTAL DE CITAS | 127 |
| TOTAL COMO AUTOR | 78 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 2001 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2026 |
| ÍNDICE H | 6 |
Meeting People Where They Are
Background: Oral health disparities disproportionately affect low-income populations, contributing to systemic health issues. Limited access to affordable dental care often results in untreated dental conditions, which can impair overall health and economic stability. Objectives: This study explored the feasibility of conducting dental screenings in community settings and supporting individuals in establishing a dental home. Methods: The study wa…
The Exploration of Cannabis Beverage Substitution for Alcohol
Alcohol consumption is associated with nearly 200 health conditions. As cannabis-infused beverages emerge in the legal market, their potential as a substitute for alcohol is of growing interest. This study investigates whether cannabis beverages may reduce alcohol use.A total of 438 anonymous adults who used cannabis in the past year completed a survey including cannabis use and alcohol consumption items from the Behavioral Risk Factor Surveillan…
How Do People Maintain Consensual Non-Monogamy? An International Development and Validation of the Multiple Relationships Maintenance Scale
Maintaining multiple intimate relationships entails some risks and complications beyond exclusive pair bonding (i.e., monogamy). Consensual non-monogamy (CNM; e.g., polyamory, swinging, or open relationships) allegedly reduces these risks and complications, but no one has tried to comprehensively document typical CNM risk management practices, nor analyzed the relationship outcomes of those who use these practices. We developed the Multiple Relat…
Minor Cannabinoid Use Among Medical Cannabis Patients
The legalization of cannabis in the United States (US) has increased the availability of a variety of novel cannabinoids such as cannabigerol (CBG) and cannabinol (CBN), delta-8 tetrahydrocannabinol (delta-8 THC) and THC-O acetate ester (THC-O), yet little is understood about the use of these emerging cannabinoids by medical cannabis patients. A large sample ( N = 1721) of US medical cannabis patients was surveyed to characterize their patterns o…
Racial Differences in Naturalistic Psychedelic Use — Motivations for Use, Communication with Health Care Providers, and Outcomes
People of Color have been under-included in psychedelic-assisted therapy (PAT) research. Researchers have argued that systemic issues resulting in harms to communities of color like the War on Drugs and recurrent exposure to discrimination in healthcare settings may reduce their willingness to engage in PAT research. However, there are no empirical data regarding People of Color's trust or willingness in using psychedelics with support of trained…
Tripping into Treatment
Psychedelic drugs are currently being explored for their therapeutic potential for a variety of health conditions. The recent increased public interest in psychedelics necessitates empirical investigation into motivations for use among users as well as how motivations may change over time. We asked a large sample of participants reporting naturalistic psychedelic use ( N = 1221) about their motivations for using psychedelics initially (i.e. their…
Perceived Impact of Psychedelics on Sexual, Gender, and Intimate Relationship Dynamics
Systematic research on the impact of psychedelic use on sexuality and intimacy remains limited. This study investigated reported effects of psychedelic use on various aspects of sexuality, gender, and relationships through an online survey of individuals who had used psychedelics ( N = 581). Most participants (70.2%) reported perceived impacts of psychedelic experiences on their sexuality and/or sexual experiences, with 65.4% noting short-term ef…
Life History, Attachment and Romantic Relationship Outcomes in an Eastern European Adult Sample
Developmental environments shape attachment styles and life history (LH) patterns, both of which predict romantic relationship outcomes. However, the ways in which attachment styles interact with LH dimensions—specifically, mating effort and parenting effort—and how these relationships predict romantic relationship outcomes remain unclear. The current study investigated how these factors predict relationship satisfaction and conflict in a sample …
Spatial analysis of synthetic clusters of risk and resilience in the wake of the Flint water crisis
Natural and anthropogenic disasters often have greater impact on marginalized communities because of structural disinvestment and racism. Impacts may not be uniform across communities; it is important to identify characteristics related to individual- and neighborhood-level resilience in the context of disaster. The Flint Water Crisis (FWC), given its varying, widespread impacts, provides an opportunity to examine these characteristics. Using Spe…
Psychedelic substitution
Although limited by cross-sectional study design, this large observational study will help inform future studies aiming to investigate the relationship between substance use patterns and psychedelic use
Going Underground
Psychedelic-assisted therapy (PAT) has shown preliminary efficacy for psychiatric and physical health conditions. Although some people report naturalistic psychedelic use with so-called "underground" practitioners, little is known about PAT that occurs outside of controlled clinical settings or perspectives of these practitioners. We conducted an anonymous online survey of individuals who reported providing psychedelic support services (e.g. trip…
Trainees Unprepared for Advances in Psychedelic Medicine
This study aimed to characterize attitudes and identify gaps in trainee knowledge and education that may impact the field's readiness for the reemergence of psychedelic use in psychiatry. A two-part survey was sent out targeting medical and allied professional trainees who may interact with patients using or planning to use psychedelics therapeutically. Collected data for part one characterized demographics, sources of information, attitudes, exp…
Highs and Lows
Presently, 24 states have legalized adult use (recreational) cannabis, each following medical-only access. Although states that pass adult use laws report substantial declines in the number of registered medical patients, these laws expand the market, potentially enhancing patient benefits. However, research on federal adult use cannabis legislation in Canada suggests that adult use laws negatively impact medical patients. The purpose of this mix…
A Social-Ecological Model for Understanding Cannabis Risks and Promoting Harm Reduction
Attitudes of psychedelic users regarding cost of treatment and non-hallucinogenic alternatives
Background and aimsPsychedelic-assisted psychotherapy (PAP) is currently being studied as a possible treatment option for multiple disorders. Despite promising safety and efficacy findings, the high costs of the current PAP model makes it questionable if the treatment will be scalable. Non-hallucinogenic psychedelic analogs have been developed as a potential cost-effective alternative, but it is unclear what psychedelic users perceive as a reason…
The Role of Documentation Status Concerns, Perceived Discrimination, and Social Support on Latinx Adults' Physical and Mental Health
What do evolutionary researchers believe about human psychology and behavior
We investigated the prevalence of beliefs in several key and contested aspects of human psychology and behavior in a broad sample of evolutionary-informed scholars (N = 581). Nearly all participants believed that developmental environments substantially shape human adult psychology and behavior, that there are differences in human psychology and behavior based on sex differences from sexual selection, and that there are individual differences in …
Slouching towards engagement
Introduction There is substantial public interest in psychedelics as potential treatments for psychiatric conditions. However, most psychedelics are criminalized under federal law in the USA, so it is unclear whether use occurs with clinical support. Our objective was to assess whether naturalistic psychedelic use occurs with clinical support, interactions between those using psychedelics and healthcare providers (psychiatrist, therapist, or prim…
Changed Substance Use After Psychedelic Experiences Among Individuals in Canada
How Do I Learn More About this?”
There is a surge of interest in psychedelics, including new stakeholders and greater media attention. There is a need to examine the information-seeking behavior of people using psychedelics naturalistically, given the importance of preparation and harm-reduction. We examined sources of information for people using psychedelics naturalistically, and the degree to which they are trusted in a large, anonymous, online survey ( N = 1221). The most co…
Preferences and Support for Psychedelic Policies and Practices Among Those Using Psychedelics
Legal, scientific, and social landscapes for psychedelics are changing rapidly. Differences of opinion exist among key stakeholders regarding regulatory control, models of provisioning psychedelic therapy, and medicalization, decriminalization, and/or legalization policies. We assessed the policy preferences of people using psychedelics naturalistically ( N = 1221) to understand how they aligned and differed with institutional entities and existi…
THC-O-Acetate
There is a growing interest in semi-synthetic cannabinoids, including THC-O-acetate (THC-Oac). Some cannabis marketers and users have claimed that THC-Oac produces psychedelic effects; the current study is the first to examine this claim. Researchers developed an online survey for THC-Oac consumers based on previous cannabis and psychedelic use surveys and in consultation with the moderator of an online forum. The survey assessed the experiential…
Therapeutic Potential of Psilocybin for Treating Psychological Distress among Survivors of Adverse Childhood Experiences
Survivors of adverse childhood experience are at elevated risk for psychological distress. In recent years, renewed interest in psychedelic medicine has highlighted the therapeutic potential of psilocybin for those who have experienced childhood adversity. However, recreational psilocybin use remains illegal and access to approved therapies is difficult. Such use provides an opportunity to explore the therapeutic potential of psilocybin for psych…
The Relationship Between Naturalistic Psychedelic Use and Clinical Care in Canada
Naturalistic psychedelic use among Canadians is common. However, interactions about psychedelic use between patients and clinicians in Canada remain unclear. Via an anonymous survey, we assessed health outcomes and integration of psychedelic use with health care providers (HCP) among Canadian adults reporting past use of a psychedelic. The survey included 2,384 participants, and most (81.2%) never discussed psychedelic use with their HCP. While 3…
Individual Differences in How Desirable People Think They Are as a Mate
Mate value is an important concept in mate choice research although its operationalization and understanding are limited. Here, we reviewed and evaluated previously established conceptual and methodological approaches measuring mate value and presented original research using individual differences in how people view themselves as a face-valid proxy for mate value in long- and short-term contexts. In data from 41 nations ( N = 3895, M age = 24.71…
Neighborhood Social Conditions Mediate the Association Between Physical Deterioration and Mental Health
This study investigates how neighborhood deterioration is associated with stress and depressive symptoms and the mediating effects of perceived neighborhood social conditions. Data come from a community survey of 801 respondents geocoded and linked to a systematic on‐site assessment of the physical characteristics of nearly all residential and commercial structures around respondents' homes. Structural equation models controlling for demographic …
An evolutionary life-history framework for understanding sex differences in human mortality rates
Sex Differences in Post-Coital Behaviors in Long- and Short-Term Mating
Few empirical studies have been devoted to exploring behaviors occurring immediately following sexual intercourse. Therefore, this study conducts an exploratory investigation of various post-coital behaviors that the authors propose may reflect the divergent adaptive reproductive strategies of each sex as understood from an evolutionary perspective. An online questionnaire was administered to 170 individuals examining sex differences in post-coit…
Proper and dark heroes as Dads and Cads
Racism, Health Status, and Birth Outcomes
Relationships Among Disease, Social Support, and Perceived Health
We examined the relationship between the cumulative presence of major disease (cancer, stroke, diabetes, heart disease, and hypertension), social support, and self‐reported general and emotional well‐being in a community representative sample of predominantly White and African American respondents ( N = 1349). Across all ages, greater presence of disease predicted poorer reported general health, and predicted lower emotional well‐being for respon…
Assault injury rates, social capital, and fear of neighborhood crime
This study develops an explanatory framework for fear of neighborhood crime based on respondents' social context and local rates of assault injuries. Rates of assault injuries within zip codes are based on hospital discharge records. We find that only four variables have a significant unique contribution to fear of crime: respondent's sex, perceptions of neighborhood social capital, and the rates of struck by/against assault injuries for the 10–2…
Verifying the operational definition of neighborhood for the psychosocial impact of structural deterioration
The physical decay of neighborhoods is associated with social conditions such as disease risk, poor mental health, and fear of crime. Researchers assessing neighborhood effects commonly operationalize neighborhoods via municipal boundaries such as U.S. Census Tracts, although more sophisticated analyses examine structures within a defined radius of respondents, typically .25‐mile. This study verifies the .25‐mile heuristic as a sound operational …
Toxic trauma
We examined the relationship between perceptions of household tap water quality and posttraumatic stress disorder (PTSD) symptoms during the Flint, Michigan, water crisis in 2015–2016. The Speak to Your Health Community Survey is a community-based participatory component of the health surveillance system in Genesee County, Michigan. Perceptions of household tap water quality was added to the 2015–2016 survey wave after inadequate official respons…
Dog ownership increases attractiveness and attenuates perceptions of short-term mating strategy in cad-like men
Men may have evolved to specialize in short-term cad and long-term mating strategies. We hypothesized that dog ownership would increase the long-term attractiveness of men, especially for cads, as this would signal nurturance and suggest tendencies for relationship commitment. Women read vignettes in an experiment with four conditions varying by male mat- ing strategy described (dad vs. cad) and dog ownership (yes vs. no mention). Dog ownership a…
The Association of Incarceration with Community Health and Racial Health Disparities
Our results indicate that the incarceration of close others influences mental and physical health and the health disparities between Blacks and Whites. More attention should be given to the potential effects of incarceration on the people closest to those incarcerated
Assessing Physical Disorder in Urban Neighborhoods
Research on neighborhood factors that influence health and crime often use neighborhood measures of geographic areas such as census tracts, wards, and postal sectors. These administratively defined areas, however, may mask the heterogeneity of neighborhood influences. In response to calls for more specific measures, we tested the reliability and validity of the Parcel Maintenance Observation Tool (PMOT)–a new measure of physical disorder on prope…
Local Scarcity of Adult Men Predicts Youth Assault Rates
Father involvement reduces risky youth behavior at the individual level. We examine the association between the scarcity of adult men and youth violence at the Census Tract level across a small midwestern city experiencing decades of economic adversity and high rates of violence. We calculated the ratio of men to women aged 25–64 years and indicators of concentrated disadvantage across residential Census Tracts with 2000 U.S. Decennial Census dat…
Individual Differences in How Desirable People Think They Are as a Mate
Mate value is an important concept in mate choice research although its operationalization and understanding are limited. Here, we reviewed and evaluated previously established conceptual and methodological approaches measuring mate value and presented original research using individual differences in how people view themselves as a face-valid proxy for mate value in long- and short-term contexts. In data from 41 nations ( N = 3895, M age = 24.71…
University Sports Rivalries Provide Insights on Coalitional Psychology
Factors Influencing the Intended Likelihood of Exposing Sexual Infidelity
Portrayal of personality in Victorian novels reflects modern research findings but amplifies the significance of agreeableness
Challenges and Lessons Learned in Developing a Community-Based Health Survey
Through these two survey development processes, we learned three key lessons: To regularly examine our partnership and process; to communicate directly with and obtain the support of each individual partner; and to focus on building the capacity of the partners and partnership
Psychological Aspects of Adaptations for Kin Directed Altruistic Helping Behaviors
This questionnaire study sheds light on the psychological component of kin selecting tendencies predicted by Hamilton's (1964b) inclusive fitness theory of discriminatory altruistic behavior based on genetic similarity. Participants rated donations of assistance aiding survival and material wealth as more rational and ethical when these actions were performed for closer relatives. Participants also felt a greater obligation to perform these acts …
The deconstruction of constructivism
The deconstruction of constructivism
June/July 2002 • American Psychologist vites the replacement of one with the other. PDP connectionism provides a synthetic perspective on the dialectical tension created by this play of apparent opposites by centering inquiry on constructivist network principles that govern the emergence of mind from brain. Connectionism brings postmodernist constructive assumptions to bear regarding how perceptions, cognitions, and behavior are synthesized withi…
Evolution and altruism Combining psychological mediators with naturally selected tendencies
Proper and dark heroes as Dads and Cads
Male facial masculinity influences attributions of personality and reproductive strategy
Facial masculinity may be used as a cue in female mate choice, as it reflects the success of the male genotype in its developmental environment. Women may maximize reproductive success by using a conditional strategy favoring highly masculine facial features for short‐term relationships and feminized facial features in men for long‐term relationships. Three studies examine reactions to masculinized and feminized male facial composites. Properties…
An evolutionary life-history framework for understanding sex differences in human mortality rates
Neighborhood Social Conditions Mediate the Association Between Physical Deterioration and Mental Health
This study investigates how neighborhood deterioration is associated with stress and depressive symptoms and the mediating effects of perceived neighborhood social conditions. Data come from a community survey of 801 respondents geocoded and linked to a systematic on‐site assessment of the physical characteristics of nearly all residential and commercial structures around respondents' homes. Structural equation models controlling for demographic …
Assault injury rates, social capital, and fear of neighborhood crime
This study develops an explanatory framework for fear of neighborhood crime based on respondents' social context and local rates of assault injuries. Rates of assault injuries within zip codes are based on hospital discharge records. We find that only four variables have a significant unique contribution to fear of crime: respondent's sex, perceptions of neighborhood social capital, and the rates of struck by/against assault injuries for the 10–2…
Fruit and Vegetable Intake among Urban Community Gardeners
Challenges and Lessons Learned in Developing a Community-Based Health Survey
Through these two survey development processes, we learned three key lessons: To regularly examine our partnership and process; to communicate directly with and obtain the support of each individual partner; and to focus on building the capacity of the partners and partnership
Verifying the operational definition of neighborhood for the psychosocial impact of structural deterioration
The physical decay of neighborhoods is associated with social conditions such as disease risk, poor mental health, and fear of crime. Researchers assessing neighborhood effects commonly operationalize neighborhoods via municipal boundaries such as U.S. Census Tracts, although more sophisticated analyses examine structures within a defined radius of respondents, typically .25‐mile. This study verifies the .25‐mile heuristic as a sound operational …
Life history variables and risk-taking propensity
The Association of Incarceration with Community Health and Racial Health Disparities
Our results indicate that the incarceration of close others influences mental and physical health and the health disparities between Blacks and Whites. More attention should be given to the potential effects of incarceration on the people closest to those incarcerated
The Association of Incarceration with Community Health and Racial Health Disparities
The Association of Incarceration with Community Health and Racial Health Disparities Daniel J. Kruger, PhD (bio) and E. Hill De Loney, MA (bio) What Is the Purpose of This Study? • To assess how the incarceration of a friend or family member is associated with the physical and mental health of those remaining in the community. What Is the Problem? • The United States has the highest incarceration rate in the world, and substantial disparities exi…
Sex Differences in Post-Coital Behaviors in Long- and Short-Term Mating
Few empirical studies have been devoted to exploring behaviors occurring immediately following sexual intercourse. Therefore, this study conducts an exploratory investigation of various post-coital behaviors that the authors propose may reflect the divergent adaptive reproductive strategies of each sex as understood from an evolutionary perspective. An online questionnaire was administered to 170 individuals examining sex differences in post-coit…
Racism, Health Status, and Birth Outcomes
Portrayal of personality in Victorian novels reflects modern research findings but amplifies the significance of agreeableness
Evolutionary theory in public health and the public health of evolutionary theory
‘I make sure I am safe and I make sure I have myself in every way possible’
High rates of youth pregnancy and STIs play a major role in the physical, mental, and emotional health of young people. Despite efforts to provide sexuality education through diverse channels, we know little about the ways in which young people perceive school- and community-based efforts to educate them about sexual health. Forty-eight African-American young people participated in six focus groups to discuss their sexuality education experiences…
Male Scarcity is Associated with Higher Prevalence of Premature Gestation and Low Birth Weight Births Across the United States
OBJECTIVES: Modern adverse birth outcomes may partially result from mechanisms evolved to evaluate environmental conditions and regulate maternal investment trade-offs. Male scarcity in a population is associated with a cluster of characteristics related to higher mating effort and lower paternal investment. We predicted that modern populations with male scarcity would have shorter gestational times and lower birth weights on average. METHODS: We…
Male Scarcity is Associated with Higher Prevalence of Premature Gestation and Low Birth Weight Births Across the United States
Genesee County Reach Windshield Tours
Dog ownership increases attractiveness and attenuates perceptions of short-term mating strategy in cad-like men
Men may have evolved to specialize in short-term cad and long-term mating strategies. We hypothesized that dog ownership would increase the long-term attractiveness of men, especially for cads, as this would signal nurturance and suggest tendencies for relationship commitment. Women read vignettes in an experiment with four conditions varying by male mat- ing strategy described (dad vs. cad) and dog ownership (yes vs. no mention). Dog ownership a…
Local Scarcity of Adult Men Predicts Youth Assault Rates
Father involvement reduces risky youth behavior at the individual level. We examine the association between the scarcity of adult men and youth violence at the Census Tract level across a small midwestern city experiencing decades of economic adversity and high rates of violence. We calculated the ratio of men to women aged 25–64 years and indicators of concentrated disadvantage across residential Census Tracts with 2000 U.S. Decennial Census dat…
Psychology (60 obras) · Medicine (38 obras) · Social Psychology (35 obras) · Sociology (31 obras) · Psychiatry (27 obras) · Evolutionary Psychology and Human Behavior (24 obras) · Psychedelics and Drug Studies (18 obras) · Demography (17 obras) · Political science (16 obras) · Public health (16 obras)