Psychology Commons^™

Covid-19, Evolution, Brains And Psychology, Frederick Toates

Animal Sentience

Attention needs to be directed to the processes that control behavior in humans and the adaptive problems that they solved in our early evolutionary environment. The evolutionary mismatch between the current environment and the human brain can yield important insights into the problems that beset us in the context of environmental degradation and nonhuman animal welfare.

Examining Environmental Use By Captive Lemur Catta And Varecia Rubra, Rhiannon Belcher

All Master's Theses

There are over 100 named species of lemurs, of which 94% are considered threatened with extinction by the International Union for the Conservation of Nature (IUCN). They live in increasingly fragmented forests. To understand how best to protect them in their natural habitats, we can observe how they manipulate the environment and how they use objects, both natural and humanmade, around them. Understanding their behavior is a critical component of conservation, and observing behavior in a captive setting allows us to study lemur-environment relationships without disrupting what little habitat is left in Madagascar. In this study I investigated whether the …

Appealing To Human Intuitions To Reduce Animal Abuse, Yzar S. Wehbe, Todd K. Shackelford

Animal Sentience

Social scientists may be able to find ways to positively affect people’s evolved moral compasses, thereby doing the planet and its inhabitants a great kindness. They could help to shape a constituency that is increasingly opposed to animal abuse in its largest-scale manifestations, factory farming and wet markets. This would, in turn, motivate people to elect ethical leaders who view inaction with regard to animal abuse as a serious moral and medical mistake, if only indirectly due to factory farming’s exacerbation of the threats zoonoses pose to humans.

Inhibition Of Pain Or Response To Injury In Invertebrates And Vertebrates, Matilda Gibbons, Sajedeh Sarlak

Animal Sentience

In certain situations, insects appear to lack a response to noxious stimuli that would cause pain in humans. For example, from the fact that male mantids continue to mate while being eaten by their partner it does not follow that insects do not feel pain; it could be the result of modulation of nociceptive inputs or behavioural outputs. When we try to infer the underlying mental state of an insect from its behaviour, it is important to consider the behavioural effects of the associated physiological and neurobiological mechanisms.

No Room For Speciesism In Welfare Considerations, Jennifer Vonk

Animal Sentience

Speciesism should play no role in determining welfare outcomes. Cognition may vary within species as well as between species, but broad classifications such as invertebrates are functionally meaningless in this context. Cognition should relate to welfare only to the extent that it relates to the capacity to suffer or to experience pleasure.

Zoonotic Realism, Computational Cognitive Science And Pandemic Prevention, Tyler Davis, Molly E. Ireland, Jason Van Allen, Darrell A. Worthy

Animal Sentience

Using animals in food and food production systems is one of many drivers of novel zoonoses. Moving toward less dependence on animal proteins is a possible avenue for reducing pandemic risk, but we think that Wiebers & Feigin’s proposed change to food policy (phasing out animal meat production) is unrealistic in its political achievability and its current capacity to feed the world in a cost-effective and sustainable manner. We suggest that improvements in communication strategies, precipitated by developments in computational cognitive neuroscience, can lead the way to a safer future and are feasible now.

Insect Sentience And The Rise Of A New Inclusive Ethics, David Baracchi, Luigi Baciadonna

Animal Sentience

Welfare protections for vertebrates are grounded in the belief that vertebrates are sentient and capable of feeling whereas invertebrates are not. We agree with Mikhalevich & Powell that the exclusion of small-brained invertebrates from bioethics is not warranted by the current state of the scientific evidence. The choice to promote protection for certain invertebrates should be based on the Animal Sentience Precautionary Principle (ASPP). This principle should not prevent us from conducting experimental research with non-human animals to advance knowledge. However, we believe that it is important to outline practical guidelines to manage the wellbeing of invertebrates, while accumulating further …

Frontal Brain Injury: Effects On Flexibility, Impulse Control, And Attention, Christopher Matthew O'Hearn

Graduate Theses, Dissertations, and Problem Reports (ETD)

Traumatic Brain Injury (TBI) is defined as an impact to the head, penetration of the skull, or rapid deceleration of the skull, resulting in an alteration of brain function or neurological deficit. Cognitive deficits are common following TBI and often go unresolved due to a lack of effective treatments. These deficits often perseverate into the chronic post injury phase, so the development of rehabilitative strategies is imperative. Behavioral flexibility, impulse control, and attention are a few cognitive processes that are commonly affected by TBI. The current research compares these processes between rats with and without a severe frontal brain injury …

The Efficacy Of Ketamine In Adult Patients With Obsessive Compulsive Disorder With Symptoms Refractory To Standard Of Care Treatment., Brooke Thornton

Capstone Showcase

First line pharmacologic treatments for adult patients with Obsessive Compulsive Disorder (OCD) involve selective serotonin/norepinephrine reuptake inhibitors (SSRI/SNRIs). These drug classes often fail to deliver timely relief of symptoms as well as maintain longevity of symptom recurrence. This research analyzed the use of ketamine in adult patients suffering with OCD for the purposes of more efficacious management of symptoms. Although ketamine demonstrated a timelier relief of symptoms in some small clinical studies, its effects were ultimately unable to be sustained long term. Additionally, a wide range of adverse effects including dissociation, and rebound symptoms were observed. As a result, large …

Ketamine Pre-Exposure Does Not Influence Later-Life Responses To Reward-Related Stimuli In Female C57bl/6 Mice, Israel Garcia

Open Access Theses & Dissertations

Preclinical work indicates that exposure to traditional antidepressant medications, in adolescent and adult female subjects, alters reward-related behavior later in life. In recent years, the anesthetic ketamine (KET), now used as a fast-acting antidepressant, has shown promising therapeutic efficacy for the management of depression. However, the potential long-term behavioral consequences of KET exposure across development have not been thoroughly assessed. Thus, to address this issue, we examined if KET exposure, during adolescence or early adulthood, results in enduring alterations in responsivity to the rewarding properties of sucrose and cocaine later in life. Specifically, female C57BL/6 mice were randomly assigned to …

Rewilding Or Reviewing: Conservation And The Elephant-Based Tourism Industry, Ingrid Suter

Animal Sentience

Baker & Winkler (2020) provide a detailed examination of elephants in captivity, from an historical perspective to modern-day concerns. Concerns include the poor level of mahout skills and subsequent captive elephant welfare issues in the Thai elephant tourism industry. Rewilding is proposed as a method of rehabilitation and a way to include mahouts in the conservation process. This commentary argues that the tourism industry is making positive changes and mahout skills can be utilised successfully without the arduous task of rewilding. Animal rights groups and the transfer of misinformation surrounding captive elephant welfare are also examined, as these typically fail …

Comparative Cognition And Nonhuman Individuality, Catia Correia Caeiro

Animal Sentience

Commentators Washington (2019) and Tiffin (2019) point out that the individual vs. collective dichotomy is much more complex than what is considered in the target article. This commentary will focus on why individuals are more important than collectives. Species differences in cognition and emotional processes and individuals’ feelings and experiences need to be taken into account.

Whether Invertebrates Are Sentient Matters To Bioethics And Science Policy, Michael L. Woodruff

Animal Sentience

Mikhalevich & Powell provide convincing empirical evidence that at least some invertebrates are sentient and hence should be granted moral status. I agree and argue that functional markers should be the primary indicators of sentience. Neuroanatomical homologies provide only secondary evidence. Consensus regarding the validity of these functional markers will be difficult to achieve. To be effective in practice, functional markers of sentience will have to be tested and accepted species by species to overcome the implicit biases against extending moral status to invertebrates.

Cognition, Movement And Morality, Thomas R. Zentall

Animal Sentience

Each of the criteria for determining which should be given moral standing has its shortcomings. The criterion of cognitive is especially weak. That research on comparative cognition may default to the simplest account is not grounds for abandoning this scientific practice. Instead, we should dissociate scientific evidence of cognitive ability from moral obligation. In addition to the criteria suggested by Mikhalevich & Powell for including species in welfare protections, I would suggest a very old one — the ability to physically move.

Changing Weight Management Self-Efficacy Among Obese Puerto Rican Adults: A Quantitative Study Using A Health Coaching Intervention, Richard Valentin Ayala, Josh Bernstein

Internet Journal of Allied Health Sciences and Practice

Purpose: Obesity and associated healthcare-related issues continue to increase. The prevalence of obesity is on the rise, which has led many health professionals to find ways to improve health interventions. Health coaching can be a viable tool to reduce the obesity epidemic. The purpose of this quantitative study was to investigate the effects of an 8-weekhealth coaching intervention in obese individuals from Puerto Rico and to determine if self-esteem and body image influence weight managementself-efficacy. Method: A pretest-posttest design using a weight management self-efficacy scale helped the researcher evaluate the effectof the coaching sessions. In addition, body image …

Eastern North Carolina Head Start Teachers’ Personal And Professional Experiences With Healthy Eating And Physical Activity: A Qualitative Exploration, Virginia C. Stage, Lorelei Jones, Jocelyn Bayles, Archana V. Hegde, Dipti Dev, L. Suzanne Goodell

Department of Child, Youth, and Family Studies: Faculty Publications

Objective: Explore the interrelationship between teachers’ personal and professional socio-ecological structures while examining Head Start (HS) teachers’ experiences with (1) trying to eat healthy and engage in physical activity (PA) and (2) promote healthy eating and PA in their classrooms.

Design: In-depth semi-structured interviews were collected from March through June 2017. Researchers designed the data collection and analysis methods using a phenomenological approach. All interviews were recorded using digital audio and transcribed verbatim.

Setting: Seven HS centers in two rural eastern North Carolina counties.

Participants: Teachers (n 15) who had recently participated in a healthy eating and physical activity …

Ideology And Predictive Processing: Coordination, Bias, And Polarization In Socially Constrained Error Minimization, Nathan E. Wheeler, Suraiya Allidina, Elizabeth U. Long, Stephen P. Schneider, Ingrid J. Haas, William A. Cunningham

Department of Political Science: Faculty Publications

Recent models of cognition suggest that the brain may implement predictive processing, in which top-down expectations constrain incoming sensory data. In this perspective, expectations are updated (error minimization) only if sensory data sufficiently deviate from these expectations (prediction error). Although originally applied to perception, predictive processing is thought to generally characterize cognitive architecture, including the social cognitive processes involved in ideological thinking. Scaling up these simple computational principles to the social sphere outlines a path by which group members may adopt shared ideologies and beliefs to predict behavior and cooperate with each other. Because ideological judgments are of specific interest …

Developing A Computer-Controlled Treat Dispenser For Canine Operant Conditioning, Walker Arce, Jeffrey R. Stevens

Jeffrey Stevens Publications

When performing canine operant conditioning studies, the delivery of the reward can be a limiting factor of the study. While there are a few commercially available options for automatically delivering rewards, they generally require manual input, such as using a remote control, in accordance with the experiment script. This means that human reaction times and transmission distances can cause interruptions to the flow of the experiment. The potential for development of non-supervised conditioning studies is limited by this same factor. To remedy this, we retrofitted an off-the-shelf treat dispenser with new electronics that allow it to be remotely controllable as …

Serotonin 5-Ht2a And 5-Ht2c Receptors Regulate Rat Maternal Behavior Through Distinct Behavioral And Neural Mechanisms, Jun Gao, Lina Nie, Yu Li, Ming Li

Department of Psychology: Faculty Publications

Serotonin 5-HT_2A and 5-HT_2C receptors play important yet distinctive roles in the regulation of rat maternal behavior. The present study investigated their neural substrates and explored the possible behavioral mechanisms (i.e., behavioral organization or maternal motivation). Sprague-Dawley postpartum females were microinjected with either a selective 5-HT_2A agonist (TCB-2, 0.4 or 4.0 μg/side) or a 5-HT_2C agonist (MK212, 2.5 or 5.0 μg/side) into the medial prefrontal cortex (mPFC) or ventral tegmental area (VTA). Ten and 60 min later, their maternal activities were observed in the home cage; and their motivational responses towards pups were examined in a …

Mechanisms Of Value-Biased Prioritization In Fast Sensorimotor Decision Making, Kivilcim Afacan-Seref

Dissertations and Theses

In dynamic environments, split-second sensorimotor decisions must be prioritized according to potential payoffs to maximize overall rewards. The impact of relative value on deliberative perceptual judgments has been examined extensively, but relatively little is known about value-biasing mechanisms in the common situation where physical evidence is strong but the time to act is severely limited. This research examines the behavioral and electrophysiological indices of how value biases split-second perceptual decisions and the possible mechanisms underlying the process. In prominent decision models, a noisy but statistically stationary representation of sensory evidence is integrated over time to an action-triggering bound, and value-biases …

Problems With Basing Insect Ethics On Individuals’ Welfare, Susana Monsó, Antonio J. Osuna-Mascaró

Animal Sentience

In their target article, Mikhalevich & Powell (M&P) argue that we should extend moral protection to arthropods. In this commentary, we show that there are some unforeseen obstacles to applying the sort of individualistic welfare-based ethics that M&P have in mind to certain arthropods, namely, insects. These obstacles have to do with the fact that there are often many more individuals involved in our dealings with insects than our ethical theories anticipate, and also with the fact that, in some sense, some insects count as more than an individual and, in another sense, they sometimes count as less than an …

Lessons From Miniature Brains: Cognition Cheap, Memory Expensive (Sentience Linked To Active Movement?), Giorgio Vallortigara

Animal Sentience

Studies on invertebrate minds suggest that the neural machinery for basic cognition is cheap, and that bigger brains are probably associated with greater memory storage rather than more advanced cognition. Sentience may be linked to feedforward mechanisms (Reafferenzprinzip) that allow organisms with active movement to distinguish active and passive sensing. Invertebrates may offer special opportunities for testing these hypotheses.

How Does Eye Movement Desensitization And Reprocessing (Emdr) Work? An Examination Of The Potential Mechanisms Of Action, Sara Forster

Theses and Dissertations

A mounting body of evidence suggests that Eye Movement Desensitization and Reprocessing therapy (EMDR) is successful in reducing the impact of posttraumatic symptoms. Although the exact mechanisms of action remain unknown, theories from the psychological to the neuroscientific continue to emerge, expand, and evolve. This study will examine four of the most prominent theories to date and weigh the evidence for and against each one. It will also review, compare, and contrast the theories, evaluate the research supporting each one, and propose the most likely explanation for EMDR's success given the state of the research. Neurobiological mechanisms and correlates as …

Ethical Considerations For Invertebrates, Scarlett R. Howard, Matthew R.E. Symonds

Animal Sentience

Mikhalevich & Powell (2020) have built on the discussion about which species deserve inclusion in animal ethics and welfare considerations. Here, we raise questions concerning the assessment criteria. We ask how to assess different species for their ability to fulfill the criteria, which criteria are most important, how we quantify them (absolute or on a continuum), and how non-animals such as fungi and plants fit into this paradigm.

Sentience In Evolutionary Context, Jon Mallatt, Todd E. Feinberg

Animal Sentience

We appreciate the goals of Mikhalevich & Powell (M&P) and largely agree with their conclusions but we differ on some of their definitions and terms. Affects (emotional feelings) should be part of sentience. Although the evidence presented for insect sentience is strong, we list some of the counterevidence that should be considered. Our own research supports M&P’s choice of arthropods, cephalopods, and vertebrates as the only sentient organisms with moral status.

An Ecological Momentary Assessment Of Self-Improved And Self-Evaluation Body Comparisons: Associations With College Women's Body Dissatisfaction And Exercise, Rachel I. Macintyre, Kristin E. Heron, Abby L. Braitman, Danielle Arigo

Psychology Faculty Publications

Upward body comparisons are prevalent among college women and associated with body dissatisfaction and disordered eating. However, less is known about distinguishing features of the comparisons themselves as they occur in daily life. The primary purpose of the present study was to examine whether two types of upward body comparisons previously studied experimentally (self-improvement and self-evaluation) are differentially associated with body- and exercise-related outcomes in real-life settings using ecological momentary assessment (EMA). Undergraduate women (N = 74) between 18-25 years (Mage = 20.4, SD = 1.63) completed five surveys on smartphones daily for seven days. EMA measures …

Biology Of Binge Eating Related Disorders And Proposal For Integration Into Treatment, Karlyne Morawe

Graduate School of Professional Psychology: Doctoral Papers and Masters Projects

The concerningly low recovery and high cross over rates of eating disorders with binge eating behaviors suggests there might be a missing element in current treatment approaches commonly used to address eating disorders. Research supports the existence of significant biological correlation between disorders that are characterized by binge eating behaviors. This paper examines some of the biological processes in which these disorders show the most significant correlations. These include the organism’s response to caloric restriction, the brain’s response to feeding, the biological drive for reproduction, sensory association to feeding, and habituated responding to the feeding process. Additionally, we will explore …

Physiological And Psychological Responses To Six Weeks Of High-Intensity Interval And Moderate-Intensity Continuous Training In Physically Inactive Young Adults, Emily R. Dunston

EWU Masters Thesis Collection

High-intensity interval training (HIIT) has been proposed as a public health strategy to promote physical activity; yet, there is limited evidence examining factors related to adherence to HIIT.

PURPOSE: To determine the effect of six weeks of HIIT and moderate-intensity continuous training (MICT) on physiological and psychological responses to training.

METHODS: Physically inactive young adults (n = 20; age = 21.4 ± 2.2 years) were randomized to the HIIT or MICT group. Assessments of body composition, cardiorespiratory fitness (CRF), moderate-to-vigorous physical activity (MVPA) and sedentary behavior levels were completed prior to and following the intervention. Participants completed 18 training sessions …

The Nature Of Informal Roles In Interdependent Sport Teams, Jeemin Kim

Theses and Dissertations (Comprehensive)

The degree to which athletes understand and execute their formal role responsibilities (i.e., prescribed by coaches) is important for individual and group functioning (Eys, Schinke, Surya, & Benson, 2014). Recent literature suggested that informal roles can emerge within sport teams more naturally without coaches’ explicit assignments (e.g., team comedians, distracters), and have significant influences on team functioning (Cope, Eys, Beauchamp, Schinke, & Bosselut, 2011). This doctoral dissertation examined the nature of informal roles within interdependent sport teams, focusing on their antecedents and outcomes. Three separate projects were conducted. Project One examined athletes’ personality in the big five dimensions (McCrae & …

Spatial Memory And Executive Functioning In The Goto-Kakizaki Rat Model Of Diabetes, Lorielle Dietze

Theses and Dissertations (Comprehensive)

Type 2 diabetes mellitus is a disease that adversely affects cognitive function in areas extending to memory and executive functioning. The Goto-Kakizaki (GK) rat provides a model of type 2 diabetes that can illustrate the mechanisms by which this disease works. The present study compared hyperglycaemic GK rats and age-matched Wistar rats in the Morris water maze to assess spatial memory, and in a perceptual attentional set-shifting task to assess putative prefrontal-dependent executive functioning. Results showed there was no difference in path length during training trials, however, GK and Wistar rats differed in the path length travelled in the target …