Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Behavior (2)
- Memory (2)
- Puberty (2)
- Sleep (2)
- Adiposity (1)
-
- Aging (1)
- Alzheimer's disease (1)
- Attention (1)
- Audition (1)
- Auditory perception (1)
- Construction (1)
- Declarative (1)
- ER-Alpha (1)
- Estradiol (1)
- Estrogen (1)
- Event-related potentials (1)
- Female (1)
- GABA_A receptors (1)
- HDAC6 (1)
- LPS (1)
- Object grouping (1)
- Ovaries (1)
- Photochemistry (1)
- Precedence effect (1)
- Preschool (1)
- Primates (1)
- Stress (1)
- Tau (1)
- Vibration (1)
- Publication Type
Articles 1 - 7 of 7
Full-Text Articles in Life Sciences
The Role Of Napping On Memory Consolidation In Preschool Children, Laura Kurdziel
The Role Of Napping On Memory Consolidation In Preschool Children, Laura Kurdziel
Doctoral Dissertations
Nocturnal sleep has been shown to benefit memory in adults and children. During the preschool age range (~3-5 years), the distribution of sleep across the 24-hour period changes dramatically. Children transition from biphasic sleep patterns (a nap in addition to overnight sleep) to a monophasic sleep pattern (only overnight sleep). In addition, early childhood is a time of neuronal plasticity and pronounced acquisition of new information. This dissertation sought to examine the relationship between daytime napping and memory consolidation in preschool-aged children during this transitional time. Children were taught either a declarative or an emotional task in the morning, and …
Attention Modulates Erp Indices Of The Precedence Effect, Benjamin H. Zobel
Attention Modulates Erp Indices Of The Precedence Effect, Benjamin H. Zobel
Masters Theses
When presented with two identical sounds from different locations separated by a short onset asynchrony, listeners report hearing a single source at the location of the lead sound, a phenomenon called the precedence effect (Wallach et al., 1949; Haas, 1951). When the onset asynchrony is above echo threshold, listeners report hearing the lead and lag sounds as separate sources with distinct locations. Event-related potential (ERP) studies have shown that perception of separate sound sources is accompanied by an object-related negativity (ORN) 100-250 ms after onset and a late posterior positivity (LP) 300-500 ms after onset (Sanders et al., 2008; Sanders …
Age-Related Changes In Sleep-Dependent Consolidation Of Visuo-Spatial Memory, Akshata Sonni
Age-Related Changes In Sleep-Dependent Consolidation Of Visuo-Spatial Memory, Akshata Sonni
Masters Theses
Healthy aging is associated with a reduction in slow-wave sleep (SWS), crucial for declarative memory consolidation in young adults; consequently, previously observed benefits of sleep on declarative learning in older adults could reflect a passive role of sleep in protecting memories from waking interference, rather than an active, stabilizing effect. To dissociate the passive and active roles of sleep, a visuo-spatial task was administered; memory was probed after a 12 hr interval consisting of either daytime wake or overnight sleep and post-wake/post-sleep stability of the memories was tested following task-related interference. Ninety five older adults (mean=65.43 yrs; SD=7.6 yrs) and …
Increased Body Weight In Adulthood Following A Peripubertal Stressor And Proposed Mechanism For Effects Of Increased Adiposity On Estrogen-Dependent Behaviors, Christina F. Gagliardi
Increased Body Weight In Adulthood Following A Peripubertal Stressor And Proposed Mechanism For Effects Of Increased Adiposity On Estrogen-Dependent Behaviors, Christina F. Gagliardi
Masters Theses
Exposure to certain stressors during a sensitive period around puberty can lead to enduring effects on an animal’s response to estradiol. In estradiol-influenced behaviors, such as sexual receptivity, hippocampal-dependent learning and memory, depression-like behavior, and anxiety-like behaviors, exposure to a peripubertal stressor such as shipping stress or an injection of lipopolysaccharide (LPS) can eliminate or even reverse the normal response to estradiol. In addition to regulating these behaviors, estradiol play a role in the regulation of body weight. While some of the previous studies touched on short-term effects on body weight, no systemic long-term study of the effects of a …
Novel Strategies To Modulate Synaptic Communication And Investigate The Role Of Hdac6 In Alzheimer’S Disease, Kathryne A. Medeiros
Novel Strategies To Modulate Synaptic Communication And Investigate The Role Of Hdac6 In Alzheimer’S Disease, Kathryne A. Medeiros
Doctoral Dissertations
Neuronal communication is mediated by chemical signaling at the synapse. The underlying molecular mechanisms of learning and memory are poorly understood. Very few tools are available to study how memories are formed in the mammalian brain. This dissertation focuses on developing novel strategies to study neural activity. Here we develop and use a chemical-genetic approach to enable target-specific photocontrol of inhibitory synaptic neurotransmission of GABAA receptor subtypes. The tools developed here selectively photocontrolled GABAA receptor subtypes. This enabled the investigation of the functional role these receptor subtypes have in inhibitory synaptic neurotransmission. This dissertation also focuses on identifying …
The Effects Of Construction Activity On The Behavior Of Captive Rhesus Monkeys (Macaca Mulatta), Courtney A. Begnoche
The Effects Of Construction Activity On The Behavior Of Captive Rhesus Monkeys (Macaca Mulatta), Courtney A. Begnoche
Masters Theses 1911 - February 2014
Previous studies have revealed insight into the effects of noises and vibrations on rodents, livestock, and zoo animals, but there is little information about such effects on non-human primates. This study aimed to assess the impact of construction activity on the behavior of animals in a non-human primate (rhesus macaque) facility. Construction activity and modified frequency behavioral data were divided into three phases: baseline (~3 months prior to construction), roof (construction on top of the animal facility), and honors (construction of 7 new buildings adjacent to the facility). We hypothesized that anxiety behaviors (scratch and yawn) would be increased during …
The Role Of Er-Alpha And The Ovaries In The Enduring Altered Behavioral Response To Pubertal Immune Stress, Bethany Rappleyea
The Role Of Er-Alpha And The Ovaries In The Enduring Altered Behavioral Response To Pubertal Immune Stress, Bethany Rappleyea
Masters Theses 1911 - February 2014
Peripubertal immune stress alters adult responsiveness to estradiol (E2) and progesterone (P). When female mice are injected with the bacterial endotoxin lipopolysaccharide (LPS) at six weeks of age, or during pubertal development, they display a decrease in response to ovarian hormones. In contrast, females ovariectomized prior to peripubertal immune stress display typical levels of sexual behavior following sequential injections of E2 and P in adulthood. Additionally, intact females exposed to peripubertal immune stress display a decrease in estrogen receptor alpha (ER-α)-immunoreactive (ir) cells in the medial preoptic area (MPOA) and ventromedial nucleus of the hypothalamus (VMH) in …