Aleksandrina Skvortsova
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View article: Bestiary of Questionable Research Practices in Psychology
Bestiary of Questionable Research Practices in Psychology Open
Questionable research practices (QRPs) pose a significant threat to the quality of scientific research. However, historically, they remain ill-defined, and a comprehensive list of QRPs is lacking. In this article, we address this concern b…
View article: Modulating hunger and food craving through expectations: placebo and nocebo effects of sham vagus nerve stimulation on food-related experiences.
Modulating hunger and food craving through expectations: placebo and nocebo effects of sham vagus nerve stimulation on food-related experiences. Open
Placebo and nocebo effects—beneficial or adverse outcomes driven by expectations rather than active treatment components—are well documented in domains such as pain, mental health disorders, fatigue etc. However, their influence on food me…
View article: Cholecystokinin input from the anterior cingulate cortex to the lateral periaqueductal gray mediates nocebo pain behavior in mice
Cholecystokinin input from the anterior cingulate cortex to the lateral periaqueductal gray mediates nocebo pain behavior in mice Open
The nocebo effect, the evil twin of the better-known placebo effect in which anticipation of harm causes that harm, is increasingly thought to be responsible for poor clinical outcomes. In humans, nocebo hyperalgesia (i.e., increased sensi…
View article: Bestiary of Questionable Research Practices in Psychology
Bestiary of Questionable Research Practices in Psychology Open
Questionable research practices (QRPs) pose a significant threat to the integrity and credibility of scientific research. However, historically, they remain ill-defined and a comprehensive list of QRPs is lacking. The article addresses thi…
View article: Modulating Hunger and Craving Through Expectation: Placebo and Nocebo Effects of Sham Vagus Nerve Stimulation on Food-Related Experiences
Modulating Hunger and Craving Through Expectation: Placebo and Nocebo Effects of Sham Vagus Nerve Stimulation on Food-Related Experiences Open
View article: Bestiary of Questionable Research Practices in Psychology
Bestiary of Questionable Research Practices in Psychology Open
Questionable research practices (QRPs) pose a significant threat to the integrity and credibility of scientific research. However, historically, they remain ill-defined and a comprehensive list of QRPs is lacking. The article addresses thi…
View article: The role of self-reported and physiological stress in nocebo hyperalgesia
The role of self-reported and physiological stress in nocebo hyperalgesia Open
Negative expectations can increase pain sensitivity, leading to nocebo hyperalgesia. However, the physiological and psychological factors that predispose individuals to this phenomenon are still not well understood. The present study exami…
View article: The Replication Database: Documenting the Replicability of Psychological Science
The Replication Database: Documenting the Replicability of Psychological Science Open
In psychological science, replicability—repeating a study with a new sampleachieving consistent results (Parsons et al., 2022)—is critical for affirming the validity of scientific findings. Despite its importance, replication efforts are f…
View article: The Replication Database: Documenting the Replicability of Psychological Science
The Replication Database: Documenting the Replicability of Psychological Science Open
In psychological science, replicability—repeating a study with a new sampleachieving consistent results (Parsons et al., 2022)—is critical for affirming the validity of scientific findings. Despite its importance, replication efforts are f…
View article: The Replication Database: Documenting the Replicability of Psychological Science
The Replication Database: Documenting the Replicability of Psychological Science Open
In psychological science, replicability—repeating a study with a new sample achieving consistent results (Parsons et al., 2022)—is critical for affirming the validity of scientific findings. Despite its importance, replication efforts are …
View article: The role of self-reported and physiological stress in nocebo hyperalgesia.
The role of self-reported and physiological stress in nocebo hyperalgesia. Open
Negative expectations can increase pain sensitivity, leading to nocebo hyperalgesia. However, the physiological and psychological factors that predispose individuals to this phenomenon are still not well understood. The present study exami…
View article: Influencing the Insulin System by Placebo Effects in Patients With Diabetes Type 2 and Healthy Controls: A Randomized Controlled Trial
Influencing the Insulin System by Placebo Effects in Patients With Diabetes Type 2 and Healthy Controls: A Randomized Controlled Trial Open
Objective The objective of this study was to investigate whether placebo effect induced by pharmacological conditioning with intranasal insulin can affect glucose, insulin, C-peptide, hunger, and memory in patients with diabetes type 2 and…
View article: Implicit gender bias in the diagnosis and treatment of type 2 diabetes: A randomized online study
Implicit gender bias in the diagnosis and treatment of type 2 diabetes: A randomized online study Open
Aims Implicit gender biases (IGBs) are unconscious evaluations about a person based on gender. IGBs of healthcare providers may affect medical decision making. This study investigated whether IGBs and genders of patients and general practi…
View article: Can contagious itch be affected by positive and negative suggestions?
Can contagious itch be affected by positive and negative suggestions? Open
Contagious itch can be evoked by observing people scratching. Verbal suggestions about to‐be‐received itch can influence itch intensity, as shown by placebo research, but it is unknown whether this extends to contagious itch. The current s…
View article: Review of: "Methadone In Chronic Non-Oncological Pain: From Disassuefaction Of Painkillers Abuse To The Primary Management Of Opioid Hyperalgesia"
Review of: "Methadone In Chronic Non-Oncological Pain: From Disassuefaction Of Painkillers Abuse To The Primary Management Of Opioid Hyperalgesia" Open
Potential competing interests: The author(s) declared that no potential competing interests exist.The topic of the manuscript is interesting and the
View article: Can contagious itch be affected by positive and negative suggestions?
Can contagious itch be affected by positive and negative suggestions? Open
Contagious itch can be evoked by observing people scratching. Verbal suggestions about to-be-received itch can influence itch intensity, as shown by placebo research, but it is unknown whether this extends to contagious itch. The current s…
View article: Olfactory exposure to late-pregnant and lactating mice causes stress-induced analgesia in male mice
Olfactory exposure to late-pregnant and lactating mice causes stress-induced analgesia in male mice Open
In an attempt to improve reproducibility, more attention is being paid to potential sources of stress in the laboratory environment. Here, we report that the mere proximity of pregnant or lactating female mice causes olfactory-mediated str…
View article: Increasing the Effectiveness of a Physical Activity Smartphone Intervention With Positive Suggestions: Randomized Controlled Trial
Increasing the Effectiveness of a Physical Activity Smartphone Intervention With Positive Suggestions: Randomized Controlled Trial Open
Background eHealth interventions have the potential to increase the physical activity of users. However, their effectiveness varies, and they often have only short-term effects. A possible way of enhancing their effectiveness is to increas…
View article: Increasing the Effectiveness of a Physical Activity Smartphone Intervention With Positive Suggestions: Randomized Controlled Trial (Preprint)
Increasing the Effectiveness of a Physical Activity Smartphone Intervention With Positive Suggestions: Randomized Controlled Trial (Preprint) Open
BACKGROUND eHealth interventions have the potential to increase the physical activity of users. However, their effectiveness varies, and they often have only short-term effects. A possible way of enhancing their effectiveness is to increa…
View article: Perceived characteristics of life situations during the COVID-19 pandemic
Perceived characteristics of life situations during the COVID-19 pandemic Open
Introduction The COVID-19 pandemic situation is seen as an intense stressor. However, people process it differently. Objectives This study aims to examine the connection between life situation perception and the desirability of life change…
View article: Food anticipatory hormonal responses: A systematic review of animal and human studies
Food anticipatory hormonal responses: A systematic review of animal and human studies Open
View article: Effects of oxytocin administration and conditioned oxytocin on brain activity: An fMRI study
Effects of oxytocin administration and conditioned oxytocin on brain activity: An fMRI study Open
It has been demonstrated that secretion of several hormones can be classically conditioned, however, the underlying brain responses of such conditioning have never been investigated before. In this study we aimed to investigate how oxytoci…
View article: A DISTURBANCE OF THE COMMUNICATION PROCESS BETWEEN THE TEACHER AND STUDENTS AS A FACTOR OF NON-ACCEPTANCE OF THE DISTANCE LEARNING
A DISTURBANCE OF THE COMMUNICATION PROCESS BETWEEN THE TEACHER AND STUDENTS AS A FACTOR OF NON-ACCEPTANCE OF THE DISTANCE LEARNING Open
Background. The current situation with the spread of a new coronavirus infection affected absolutely all spheres of society, and the sphere of higher education was no exception. Students and teachers today are forced to work in a different…
View article: EXPERIENCE IN ORGANIZING AND USING PROBLEM-BASED LEARNING OF STUDENTS IN THE COURSE OF GEOGRAPHY OF RUSSIA
EXPERIENCE IN ORGANIZING AND USING PROBLEM-BASED LEARNING OF STUDENTS IN THE COURSE OF GEOGRAPHY OF RUSSIA Open
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View article: Placebo effects and the endocrine system: the role of oxytocin
Placebo effects and the endocrine system: the role of oxytocin Open
The aim of the current dissertation was to explore the link between the endocrine system and placebo effects with a focus on the hormone oxytocin. Two perspectives were examined: the possibility to elicit placebo effects in the endocrine s…
View article: Placebo Effects in the Neuroendocrine System: Conditioning of the Oxytocin Responses
Placebo Effects in the Neuroendocrine System: Conditioning of the Oxytocin Responses Open
Objective There is evidence that placebo effects may influence hormone secretion. However, few studies have examined placebo effects in the endocrine system, including oxytocin placebo effects. We studied whether it is possible to trigger …
View article: Effects of oxytocin administration and conditioned oxytocin on brain activity: an fMRI study.
Effects of oxytocin administration and conditioned oxytocin on brain activity: an fMRI study. Open
It has been demonstrated that secretion of several hormones can be classically conditioned, however, the underlying brain responses of such conditioning have never been investigated before. In this study we aimed to investigate how oxytoci…
View article: Effects of Oxytocin on Placebo and Nocebo Effects in a Pain Conditioning Paradigm: A Randomized Controlled Trial
Effects of Oxytocin on Placebo and Nocebo Effects in a Pain Conditioning Paradigm: A Randomized Controlled Trial Open
Oxytocin has been shown to increase trust, decrease anxiety, and affect learning as has been observed in conditioning paradigms. Trust, anxiety, and learning are important factors that influence placebo effects. In this study, we investiga…
View article: The Formation Kimberlite Diamonds Through Chemical Synthesis in Open Catalytic System
The Formation Kimberlite Diamonds Through Chemical Synthesis in Open Catalytic System Open
View article: Conditioned hormonal responses: A systematic review in animals and humans
Conditioned hormonal responses: A systematic review in animals and humans Open