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Articles 1 - 30 of 62
Full-Text Articles in Behavioral Neurobiology
Neurocounseling And The Counseling Profession: Integrating Neuroscience Into The Practice Of Counseling, Sherri Clark
Neurocounseling And The Counseling Profession: Integrating Neuroscience Into The Practice Of Counseling, Sherri Clark
Dissertations, Theses, and Projects
Neurocounseling integrates Neuroscience into mental health counseling by using psychoeducation, teaching, and illustrations as well as other forms of therapy (CBT, Interpersonal Psychotherapy, Narrative Therapy, etc.) to assist clients in understanding the neurological basis of many mental and behavioral health concerns. Clients can benefit from Neurocounseling as they gain a more comprehensive understanding of the central nervous system and brain function in connection to the body, cognition, mood, and behaviors, also known as the mind and body connection. Neuroplasticity and neurogenesis allow us to understand the brain’s amazing capability to grow and change. Understanding neuroscience allows for more integrated case …
Testosterone Undecanoate Effects On Behavior And Cognitive Functions In Male Swiss Albino Mice Exposed To Chronic Social Defeat, Micheal K. Ibrahim, Rajiv Tikamdas, Mohamed M. Kamal, Roua Aref Nouh, Mostafa H. Sayed
Testosterone Undecanoate Effects On Behavior And Cognitive Functions In Male Swiss Albino Mice Exposed To Chronic Social Defeat, Micheal K. Ibrahim, Rajiv Tikamdas, Mohamed M. Kamal, Roua Aref Nouh, Mostafa H. Sayed
Pharmacy
Objective: To examine the impact of exogenous testosterone undecanoate (TU) on chronic stress-induced behavioral changes of sensory contact model in adolescent male Swiss Albino mice. Design: Stress was induced by sensory contact model (SCM) for 12 consecutive days. Defeated mice were randomly assigned to control group (vehicle), testosterone undecanoate (100mg/Kg) (TU 100) or testosterone undecanoate (500mg/Kg) (TU 500) given intramuscular once for 45 days administered 2 hours after the last SCM session. Results: SCM significantly reduced distance traveled, time spent in the center, average speed in the open field test compared to negative control group. In addition, SCM significantly reduced …
Spirituality As A Moderator Between Ptss And Cardiovascular Reactivity, Kriti Sharda
Spirituality As A Moderator Between Ptss And Cardiovascular Reactivity, Kriti Sharda
Honors Scholar Theses
Posttraumatic stress symptoms (PTSS) can be distressing and produce robust cardiovascular symptoms, such as increased heart rate and blood pressure, which have been implicated in higher risk of developing cardiovascular disease (CVD). Identifying factors that may reduce symptoms may suggest therapeutic strategies. One such potential factor is spirituality, given that spirituality is associated with both reducing PTSS and with preventing or improving CVD. We sampled 63 young college women who indicated being exposed to unwanted sexual contact. We asked them to write about their experience while we took heart rate (HR), systolic blood pressure (SBP) and diastolic blood pressure (DBP) …
Historical Trauma Response Scores As A Function Of Unresolved Grief And Substance Use Disorder In American Indian Populations, Andrew R. Saunders
Historical Trauma Response Scores As A Function Of Unresolved Grief And Substance Use Disorder In American Indian Populations, Andrew R. Saunders
Undergraduate Research Symposium
Abstract
Researchers are interested in the outcomes of interventions, specifically, measuring historical trauma (HT) among American Indian/Alaska Native communities and the long-term distress and substance abuse as a result of historical trauma response (HTR). Previous literature has implicated limitations in the clinical conceptualization of the relationship between intergenerational transfer of HTR and substance abuse. The aim of the current study is to examine treatment efficacy of 50 homosexual, American Indian males randomized to a culturally-adapted juxtaposition of (1) Group Interpersonal Psychotherapy (IPT), (2) Cognitive Processing Therapy (CPT), and (3) Historical Trauma and Unresolved Grief Intervention (HTUG), or (4) waitlisted on …
Sexually Dimorphic Oxytocin Receptor-Expressing Neurons In The Anteroventral Periventricular Nucleus Regulates Maternal Behavior, Kaustubh Sharma
Sexually Dimorphic Oxytocin Receptor-Expressing Neurons In The Anteroventral Periventricular Nucleus Regulates Maternal Behavior, Kaustubh Sharma
LSU Doctoral Dissertations
The neurohypophysial hormone oxytocin is involved in the regulation of social behaviors, including social recognition, pair bonding, and sex-specific parental behaviors in a variety of species. Oxytocin triggers these social behaviors by binding to oxytocin receptors (OXTR) in various parts of the brain. Oxytocin-induced sex-typical behavior, therefore, suggests a sexual dimorphic distribution of OXTR in the brain. In recent years, the oxytocin system in the brain received tremendous attention as a potential pharmacological target for treatment of many psychiatric disorders, such as anxiety, autism spectrum disorders, and even sex-specific psychiatric disorder like postpartum depression (PPD). An important problem and a …
Investigating Cognitive Impairment In Tdp-43 Mouse Models Of Ftd-Als Using Automated Touchscreens, Keon Coleman
Investigating Cognitive Impairment In Tdp-43 Mouse Models Of Ftd-Als Using Automated Touchscreens, Keon Coleman
Electronic Thesis and Dissertation Repository
TAR-DNA-binding protein 43 (TDP-43) misfolding and aggregation is a major pathological hallmark of frontotemporal dementia-amyotrophic lateral sclerosis (FTD/ALS). FTD/ALS is characterized by motor and cognitive impairment, with cognitive impairment frequently reported before the onset of classical motor symptoms. Yet, treatment for cognitive decline in FTD/ALS is lacking, and robust cognitive phenotypes related to TDP-43 proteinopathy have not been established for most mouse models of FTD/ALS. Herein, we used automated touchscreen technology to assess executive function (affected in FTD/ALS) in male TDP-43Q331Klow and -G348C FTD/ALS transgenic mice. The touchscreen pairwise visual discrimination task revealed impairments in 4-5-month-old TDP-43Q331Klow and …
Rehabilitative Movement Approaches And Dance Interventions In Parkinson’S Disease, Cecilia Fontanesi
Rehabilitative Movement Approaches And Dance Interventions In Parkinson’S Disease, Cecilia Fontanesi
Dissertations, Theses, and Capstone Projects
The scope of this work is to address the functional deficits and symptoms experienced by those living with Parkinson’s Disease through movement interventions.
Chapter 1 offers a brief overview of current pharmacotherapy and rehabilitation approaches in Parkinson’s, focusing on dance in particular as a movement intervention that may be particularly suited to this population.
Chapter 2 focuses on brain plasticity and motor learning in PD, reporting the effects of rTMS applied after the acquisition of a motor skill. In this study, adaptation tested in patients with PD was comparable in the sham and TMS sessions, while retention indices tested on …
Analysis Of Newspaper Coverage Of Psilocybin From January 1, 1989 To December 31, 2019, Dax Oliver
Analysis Of Newspaper Coverage Of Psilocybin From January 1, 1989 To December 31, 2019, Dax Oliver
Dissertations, Theses, and Capstone Projects
Psilocybin is a chemical compound that has received a lot of attention from medical researchers in recent years. However, this research is not merely a medical issue but a social and political one as well. In the 1960s, psilocybin and other psychedelic compounds were widely ingested outside of clinical settings. This alarmed some of the American public, resulting in severe legal restrictions on psilocybin use and research.
Today, many psilocybin advocates hope that it will avoid the negative public sentiment of the 1960s. To help gauge public sentiment about other psychoactive compounds, some studies have examined newspaper coverage, but there …
Neurodevelopmental Mechanisms Of Adverse Trauma Outcomes In Emerging Adulthood, Olena Kleshchova
Neurodevelopmental Mechanisms Of Adverse Trauma Outcomes In Emerging Adulthood, Olena Kleshchova
Dissertations, Theses, and Capstone Projects
Background: Exposure to traumatic stress and adversity during the formative years of development can have adverse effects on mental health, neuroendocrine stress system function, and the brain, that persist into adulthood. One candidate mechanism that might confer vulnerability to enduring adverse outcomes of early life trauma is disruption of normal brain maturation. As the brain matures, functional interactions among brain regions change until the functional brain architecture (i.e., the functional connectome) reaches a mature state in adulthood. Given that different neural circuits have distinct developmental trajectories and sensitive periods, traumatic stress at a given point in development might have …
The Effects Of Adolescent Chronic Mild Stress: In Female Wistar-Kyoto Rats, Anna Hallowell
The Effects Of Adolescent Chronic Mild Stress: In Female Wistar-Kyoto Rats, Anna Hallowell
The Journal of Purdue Undergraduate Research
Despite years of research to understand under-lying mechanisms and develop more effective treatment approaches for mood disorders, numerous challenges exist. Many chronic stress models are used to study mood disorders, how-ever the majority have been established with adult males. This is problematic considering that affective disorders are more common in women, and generally develop during late adolescence. Studies have indicated fundamental behavioral, physiological, and neural differences between males and females in response to the same external stressors, furthering a need to develop sex-specific paradigms to accurately model the etiology of mood disorders in females. The Wistar-Kyoto (WKY) rat strain is …
Beyond The Brain: A Study Of Α-Synuclein's Role In Bone And Adipose Tissue, Carolina A. Figueroa
Beyond The Brain: A Study Of Α-Synuclein's Role In Bone And Adipose Tissue, Carolina A. Figueroa
Electronic Theses and Dissertations
α-Synuclein is a polypeptide encoded by the Snca gene, highly expressed in neurons, but it is also found in bones and adipose tissue. Co-expression analysis showed that Snca regulates skeletal homeostasis, and its deletion reduced estrogen deficiency-induced bone loss and weight gain. It is a major component of Lewy bodies (LB) in Parkinson’s disease (PD), leading to progressive immobilization and a range of nonmotor symptoms, including osteopenia, body composition alterations and insulin resistance. This thesis aimed to determine α-Synuclein’s intrinsic role in bone and adipose homeostasis. We discussed the PD pathophysiology emphasizing aspects of bone health and metabolism. By using …
Preliminary Evidence Of The Role Of Medial Prefrontal Cortex In Self-Enhancement: A Transcranial Magnetic Stimulation Study, Birgitta Taylor-Lillquist, Vivek Kanpa, Maya Crawford, Mehdi El Filali, Julia Oakes, Alex Jonasz, Amanda Disney, Julian Keenan
Preliminary Evidence Of The Role Of Medial Prefrontal Cortex In Self-Enhancement: A Transcranial Magnetic Stimulation Study, Birgitta Taylor-Lillquist, Vivek Kanpa, Maya Crawford, Mehdi El Filali, Julia Oakes, Alex Jonasz, Amanda Disney, Julian Keenan
Department of Biology Faculty Scholarship and Creative Works
Humans employ a number of strategies to improve their position in their given social hierarchy. Overclaiming involves presenting oneself as having more knowledge than one actually possesses, and it is typically invoked to increase one’s social standing. If increased expectations to possess knowledge is a perceived social pressure, such expectations should increase bouts of overclaiming. As the medial prefrontal cortex (MPFC) is sensitive to social pressure and disruption of the MPFC leads to decreases in overclaiming, we predicted that transcranial magnetic stimulation (TMS) applied to the MPFC would reduce overclaiming and the effects would be enhanced in the presence of …
Sensory Perception, Adrian Rodriguez-Contreras
Sensory Perception, Adrian Rodriguez-Contreras
Open Educational Resources
Different types of sensory systems with their functional modalities will be presented. The biological bases for how these functions are generated and modified will then be described. Scientific information will be integrated into the lectures, such that students use critical skills in interpreting data, proposing hypotheses and designing experiments.
Assessment Of Autistic-Like Behaviour Of Mice Lacking Atrx In Forebrain Glutamatergic Neurons, Nicole A. Martin-Kenny
Assessment Of Autistic-Like Behaviour Of Mice Lacking Atrx In Forebrain Glutamatergic Neurons, Nicole A. Martin-Kenny
Electronic Thesis and Dissertation Repository
Mutations in ATRX, which encodes a chromatin remodeling protein, have been identified in patients with autism and are associated with ATR-X syndrome, a genetic disorder characterized by cognitive deficits, developmental delays, and autistic-like behaviour. Despite the relationship between ATRX and autism, it is not yet known how mutations lead to autistic behaviour. To investigate this relationship, we generated two mouse models displaying distinct timing of Atrx inactivation in forebrain excitatory neurons. With these models, we performed behavioural paradigms to assess behaviour related to autism. Behavioural testing revealed that the conditional deletion of Atrx in differentiated forebrain neurons during …
Wild Mice With Different Social Network Sizes Vary In Brain Gene Expression, Patricia C. Lopes, Barbara König
Wild Mice With Different Social Network Sizes Vary In Brain Gene Expression, Patricia C. Lopes, Barbara König
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
Background
Appropriate social interactions influence animal fitness by impacting several processes, such as mating, territory defense, and offspring care. Many studies shedding light on the neurobiological underpinnings of social behavior have focused on nonapeptides (vasopressin, oxytocin, and homologues) and on sexual or parent-offspring interactions. Furthermore, animals have been studied under artificial laboratory conditions, where the consequences of behavioral responses may not be as critical as when expressed under natural environments, therefore obscuring certain physiological responses. We used automated recording of social interactions of wild house mice outside of the breeding season to detect individuals at both tails of a distribution …
How Do Adult Songbirds Learn New Sounds? Using Neuromodulators To Probe The Function Of The Auditory Association Cortex, Matheus Macedo-Lima
How Do Adult Songbirds Learn New Sounds? Using Neuromodulators To Probe The Function Of The Auditory Association Cortex, Matheus Macedo-Lima
Doctoral Dissertations
The ability to associate sounds and outcomes is vital in the life history of many species. Animals constantly assess the soundscape for cues associated with threats, competitors, allies, mates or prey, and experience is crucial for those associations. For vocal learning species such as humans and songbirds, learning sounds (i.e. perception and association learning) is also the first step in the process of vocal learning. Auditory learning is thought to depend on high-order cortical brain structures, where sounds and meaning are bound. In songbirds, the caudomedial nidopallium (NCM) is part of the auditory association cortex and is known to be …
Effects Of Chronic Caffeine Administration On Behavioral And Molecular Adaptations To Sensory Contact Model Induced Stress In Adolescent Male Mice, Micheal K. Ibrahim, Mohamed M. Kamal, Rajiv Tikamdas, Roua Aref Nouh, Jiang Tian, Mostafa Sayed
Effects Of Chronic Caffeine Administration On Behavioral And Molecular Adaptations To Sensory Contact Model Induced Stress In Adolescent Male Mice, Micheal K. Ibrahim, Mohamed M. Kamal, Rajiv Tikamdas, Roua Aref Nouh, Jiang Tian, Mostafa Sayed
Pharmacy
Previous studies have shown that caffeine attenuates stress-induced mood dysfunction and memory deterioration through neuronal adenosine A2A receptors antagonism. However, whether caffeine exerts this effect through modulating other molecular targets, which interfere with the resilience to social defeat stress in adolescent male mice is unknown. This study was conducted to investigate the role of caffeine in the behavioral responses to social stress induced by the sensory contact model (SCM) and the possible alteration of the gene expression level of Na/K ATPase pump. Adolescent male mice were exposed to SCM for 12 days. Caffeine was administered intraperitoneal daily for 14 days …
Sleep Modifications In A Drosophila Melanogaster Model Of Fragile X Syndrome, Morgan Mclaughlin
Sleep Modifications In A Drosophila Melanogaster Model Of Fragile X Syndrome, Morgan Mclaughlin
Undergraduate Honors Theses
Fragile X syndrome (FXS) is a neurodevelopmental disorder characterized by intellectual disabilities, disruptions in sleep, and autism in humans. Mutations in Fragile X Mental Retardation gene 1 (FMR1), which codes for a protein that modifies the expression of many target proteins, are primarily responsible for this disorder. Genetic modifications of FMR1 can increase or decrease the overall amount of sleep in humans. A potential pharmaceutical target of FXS is dopamine, a critical neurotransmitter in the regulation of sleep and wakefulness. In fruit flies (Drosophila melanogaster) dopamine has been shown to alter sleep. The mushroom body, a structure in …
Mental Associations And Music Therapy: Including The History Of Associationism And The Neurology Of Associations, Dianna Rose
Mental Associations And Music Therapy: Including The History Of Associationism And The Neurology Of Associations, Dianna Rose
Expressive Therapies Capstone Theses
Associations are formed in our minds based upon three elements: sensory experience, emotions, and memories. These associations, unique to each individual, dictate thoughts, beliefs, behaviors, and actions. Some are necessary and supportive, while others can be maladaptive. Established associations can be changed, and new associations can be formed, to align with a client’s goals. The literature presents a strong history of associationism, as well as a body of research that demonstrates the neurological processes of how mental associations are formed. There are also studies showing how music activates the brain. However, there is a lack of research which draws direct …
Translating Touches: New Approaches For Modeling And Rescuing Executive Function Deficits After Prenatal Alcohol Exposure, Johnny A. Kenton
Translating Touches: New Approaches For Modeling And Rescuing Executive Function Deficits After Prenatal Alcohol Exposure, Johnny A. Kenton
Biomedical Sciences ETDs
Background: With a recent meta-analysis indicating that 9.8% of women worldwide consume alcohol during pregnancy, understanding the effects of fetal alcohol spectrum disorder (FASD) is critical for both identifying and treating those afflicted. Traditional preclinical research investigating the behavioral effects of neurodevelopmental disorders, such as FASD, has utilized tasks designed for specific animal models. For this reason, preclinical research into FASD requires a shift into clinically relevant behavioral testing. One such method involves touch-sensitive screens integrated into an operant box to emulate clinical computer-based tasks, such as the Cambridge Neuropsychological Test Automated Battery.
Methods: Here, we utilized a mouse model …
Using Machine Learning To Conduct A Detailed Behavioral Analysis In An Appetitive Social Learning Task, Thomas Shao
Using Machine Learning To Conduct A Detailed Behavioral Analysis In An Appetitive Social Learning Task, Thomas Shao
Honors Scholar Theses
Learning by watching others, or observational learning, is important for social development and survival. However, not much is known about the brain mechanisms underlying this type of learning. Since the 1960s, observational learning has been widely studied in humans, but developing and analyzing experiments for animals has been challenging. Here, I explore observational learning using a novel paradigm while performing an analysis that involves tracking the rats using an active learning paradigm called DeepLabCut. In this novel paradigm, customized operant conditioning chambers are used for the rats to observe and learn from another animal repeatedly on multiple trials each day. …
Hiv-1 Tat Interactions With Opioids Are Modulated By Progesterone And Estradiol, Dejun Jackson
Hiv-1 Tat Interactions With Opioids Are Modulated By Progesterone And Estradiol, Dejun Jackson
Honors Theses
HIV infection and combined substance abuse are comorbid epidemics. Previous studies show that concurrent opioid drug use may potentiate HIV-1-mediated neurotoxicity partly via interactions with opioids. Preclinical studies suggest that the HIV-1 trans-activator of transcription (Tat), an HIV regulatory protein, can synergize with opioids to exacerbate its already neurotoxic effects. However, its interactions with clinical opioids, such as oxycodone, have yet to be elucidated. Additionally, Tat disrupts a number of systems including the dopaminergic system, which contribute to its capacity to potentiate the rewarding effects of abused drugs. Although the neurotoxic effects of Tat may be inhibited by gonadal steroids …
Effects Of Repeated Intermittent Episodes Of Social Stress On The Acquisition And Extinction Of A Reward-Seeking Task, Nikki Sullivan
Effects Of Repeated Intermittent Episodes Of Social Stress On The Acquisition And Extinction Of A Reward-Seeking Task, Nikki Sullivan
Honors Theses
Repeated exposure to stress is known to have a myriad of effects on the brain, contributing to the development of psychiatric disorders, such as anxiety, depression, and drug addiction. For example, rats undergoing repeated social stress develop increased cocaine self-administration. These effects of stress are not well-understood and are related to changes in the brain reward system. This study investigated the effects of repeated social stress on reward-seeking behavior via the acquisition and extinction of a discriminative stimulus (DS) task and on anxiety-like behavior in the elevated plus maze (EPM). Male rats underwent intermittent social defeat (4 sessions in 10 …
Effect Of Ambient Temperature On Recovery Of Surgically Instrumented Sprague-Dawley Rats, Gianna Mangone
Effect Of Ambient Temperature On Recovery Of Surgically Instrumented Sprague-Dawley Rats, Gianna Mangone
Senior Honors Projects, 2020-current
Based on current guidelines for housing rodents after surgical instrumentation, rodents may be housed at temperatures that hinder surgical recovery and cause thermal stress– room temperature (21°C) being one of them. Rodents are often housed at room temperature since this temperature is easy for humans to be caring for them. However, if recovering rodents are thermally stressed, experimental results will be confounded. To address this issue, Sprague-Dawley rats were surgically instrumented with radiotelemtry thermoprobes (Data Sciences, #TA-10F40) to monitor their core temperatures, then housed at one of five temperatures to assess the effect ambient temperature had on multiple aspects of …
Detection Of Tinnitus In Cba/Caj Mice Using The Active Avoidance Shuttle Box Test, Grace Nichols
Detection Of Tinnitus In Cba/Caj Mice Using The Active Avoidance Shuttle Box Test, Grace Nichols
University Scholar Projects
Tinnitus is a neurological condition that involves the perception of a sound that is not actually there. Individuals affected with tinnitus describe the condition as a ringing, buzzing, or whooshing sound in their ears. One-third of the population is estimated to have tinnitus, and for many individuals, the condition negatively impacts quality of life. Difficulty falling asleep, trouble with hearing and concentrating, and in some cases, depression, have all been observed to occur with tinnitus.
Tinnitus has been extensively studied in animals, and behavioral tests are the primary method of evaluating the presence of tinnitus in animals. This study evaluates …
Hypothalamic Circuits Mediating Consumption And Anxiety, Ryan Cassidy
Hypothalamic Circuits Mediating Consumption And Anxiety, Ryan Cassidy
Dissertations & Theses (Open Access)
From 1960-2016, U.S. obesity prevalence increased 13-40% and diabetes increased from 3-15%. There is an epidemic of metabesity, the aggregate metabolic disorders produced by chronic overeating. Drugs for metabesity were developed in the 1930s with limited effectiveness; agents today rely on the same principles and are similarly ineffective. Particularly surprising has been the failure of satiety enhancers; this indicates it may not be that physiologic hunger drives chronic overeating. Although hunger and satiety affect traditional reward circuitry (Cassidy & Tong 2017), evidence for the primacy of this effect is mixed. Being hungry reduces anxiety-like behavior in mice; whether the …
Alcohol Consumption In A Preclinical Model Of Schizophrenia, Liza Hernandez
Alcohol Consumption In A Preclinical Model Of Schizophrenia, Liza Hernandez
Electronic Theses and Dissertations
Schizophrenia is a debilitating psychiatric disorder that affects approximately 1% of the global population. Schizophrenia is highly comorbid with other psychiatric disorders such as Alcohol Use Disorder (AUD) with a prevalence rate of 27% - 65%, which is significantly higher than AUD exhibited by the general population (6%). Research indicates that a higher rate of AUD in individuals suffering from schizophrenia may be related to the common neuronal pathways that underlie the expression of both disorders. The present study will determine whether the neonatal quinpirole (NQ) rodent model of schizophrenia will approximate the human condition and exhibit increased EtOH consumption. …
Safe Sleep: Developmental Implications For Hospitalized Infants, Katherine Kohlsaat
Safe Sleep: Developmental Implications For Hospitalized Infants, Katherine Kohlsaat
Senior Honors Projects
The rate at which an infant develops both physically and cognitively is significant during sleep, as this is the time when the entire body can dedicate its efforts to this cause. Parents of healthy infants follow the guidelines set by the American Academy of Pediatrics (AAP) relating to safe sleep, and since their introduction in 1992, the rate of Sudden Infant Death Syndrome (SIDS) has decreased by 40% (Center for Disease Control and Prevention, 2016). However, if an infant has been hospitalized since birth due to necessary invasive procedures such as open-heart surgery, these protocols cannot be initially implemented. Common …
The Role Of Dopamine In Decision Making Processes In Drosophila Melanogaster, Michelle C. Bowers
The Role Of Dopamine In Decision Making Processes In Drosophila Melanogaster, Michelle C. Bowers
Undergraduate Honors Theses
Understanding the neural processes that mediate decision making is a relatively new field of investigation in the scientific community. With the ultimate goal of understanding how humans decide between one path and another, simpler models such as Drosophila Melanogaster, the common fruit fly, are often utilized as a way of determining the neural circuits involved in these decision-making processes. One of the most important decisions flies make is the decision of where to lay their eggs (oviposit). Choosing the proper substrate upon which to lay eggs is a crucial decision that can ultimately impact their fecundity. This paper investigates the …
Effects Of Non-Photic Zeitgebers On The Circadian Clock In The Common House Spider, Parasteatoda Tepidariorum (Araneae: Theridiidae), Mattea Garmany, Darrell Moore, Thomas C. Jones
Effects Of Non-Photic Zeitgebers On The Circadian Clock In The Common House Spider, Parasteatoda Tepidariorum (Araneae: Theridiidae), Mattea Garmany, Darrell Moore, Thomas C. Jones
Undergraduate Honors Theses
Circadian rhythms are endogenous cycles that control physiological and behavioral changes that can be affected by environmental factors which allow most eukaryotic organisms to synchronize their daily activities with the 24-hour day. Parasteatoda tepidariorum,the common house spider, demonstrates a short-period circadian clock averaging 21.6 hours when left in constant darkness, yet they are able to entrain to a 24-hour light cycle. We tested whether these spiders were able to use non-photic Zeitgebers to entrain to the 24-hour day. Periodic presentation of food and disturbance were not found to be effective cues for the spiders’ entrainment. A few individuals were clearly …