Browsing by Author "Markham, Michael"
Now showing items 1-15 of 15
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Amplitude-frequency tradeoffs in the active sensory and communication signal of a weakly electric fish
Chu, Zhicong (2017-06)Animal communication signals play an important role in behavioral processes to ensure fitness and survivorship of individuals within a species. Weakly electric fish produce communication signals that could be among the ... -
Biophysical mechanisms for the generation of electrosensory and communication signal in the weakly electric fish Eigenmannia virescens
Ban, Yue (2018-05-03)The weakly electric fish Eigenmannia virescens generates electric organ discharges (EODs) to navigate and communicate. The EODs are brief monophasic voltage pulses with brief inter-pulse intervals, resulting in a sinusoidal ... -
THE CENTRAL PATTERN GENERATORS FOR SWIMMING AND SCRATCHING ARE PARTLY SHARED OR INTERACT AT THE INTERNEURONAL LEVEL IN ADULT TURTLES.
Hao, Zhaozhe (2014-12)Distinct rhythmic behaviors involving a common set of motoneurons and muscles can be generated by separate central nervous system networks, a single network, or partly overlapping networks in invertebrates. Less is known ... -
Dopaminergic Genes Predictive of Unmotivated Confirmation Bias are not Predictive of Motivated Confirmation Bias
Bryant, Douglas (2020)Confirmation bias is persistently devastating to rational judgment and decision-making. Previous research supports cognitive and behavioral distinctions between two types of confirmation bias: motivated confirmation bias ... -
The Effects of Pharmaceutical Intervention on Neural Connectivity and Complexity in Fragile X Syndrome
Auger, Emma (2023-12-15)This study aims to investigate the effects of targeted pharmaceutical interventions on brain networks in individuals with Fragile X Syndrome (FXS). Focusing on three drugs tested in phase 2 clinical trials – (1) a metabatropic ... -
Electrophysiological differences between specialized and multifunctional turtle spinal cord neurons involved in scratching and swimming motor patterns
Morris, Madison (2023-08-04)I examined the electrophysiology of both multifunctional and specialized neurons located in the turtle spinal cord, which are activated during swimming, scratching, and/or flexion reflex. My research analyzes these neurons ... -
Electrosensory and Metabolic Responses of Weakly Electric Fish to Changing Water Conductivity
Wiser, Shannon (2022-12-16)South American weakly electric fishes (Gymnotiformes) use self-generated electric fields, known as electric organ discharges (EODs), for sensory processes such as navigation and communication. EOD production incurs significant ... -
Enzyme systems involved in interspecies hydrogen and formate transfer between syntrophic fatty and aromatic acid degraders and Methanospirillum hungatei
Crable, Bryan (2013)The oxidation of either the fatty acid butyrate or the aromatic acid benzoate is essential for the efficient degradation of complex organic material to methane because they are central intermediates. The oxidation of ... -
AN EXAMINATION OF ECCENTRIC VERSUS CONCENTRIC UNILATERAL RESISTANCE EXERCISE ON IPSILATERAL AND CONTRALATERAL MOTOR CONTROL STRATEGIES ACROSS AN 8 WEEK TRAINING PERIOD
Wages, Nathan (2017-05-12)Traditionally, contralateral training interventions have been applied in the unilateral limb to examine the potential short-term “cross-over” responses and long-term “cross education” adaptations in the contralateral limb. ... -
Genomic investigation of cnidarian toxin evolution
Guruacharya, Anuj (2017-12)The phylum Cnidaria (jellyfish, hydras and anemones) was one of the earliest diverging animal groups and member species have simple, diffuse nervous systems. A trait unique to Cnidaria is specialized stinging cells ... -
INSIGHTS FROM LAMPREY INTO DEVELOPMENT AND EVOLUTION OF GLIA AND CRANIAL SENSORY GANGLIA
Yuan, Tian (2018-05-11)During evolution, animal nervous systems have become increasingly complex. This complexity is based on the cumulative diversity of neural cells and the emergence of new nervous system structures. Among animals, vertebrates ... -
Mapping brain activity and resting-state functional connectivity with functional near-infrared spectroscopy
Zhang, Fan (2022-08-04)Functional near-infrared spectroscopy (fNIRS) as a non-invasive optical imaging technique to measure cerebral hemodynamics has seen rapid development and increasing use in studying the human brain. fNIRS measures relative ... -
Molecular Evolution of a Na, K-ATPase in Weakly Electric Fish
Riedmann, Hiliary (2016-12)African mormyrids and South American gymnotiforms are two independently evolved lineages of weakly electric fish that produce electric organ discharges (EODs) as sensory and communication signals. EOD frequency varies ... -
NADH-DEPENDENT, FERREDOXIN-INDEPENDENT HYDROGEN PRODUCTION IN TWO MODEL SYNTROPHIC BACTERIA
Losey, Nathaniel (2019-05-10)The relationship between a fatty acid-oxidizing, hydrogen-producing bacterium and a hydrogen consuming methnogenic partner has longed served as a model system for anaerobic syntrophic metabolism. This process is dependent ... -
The Pattern Electroretinogram as an Indirect Measure of Dopaminergic Status in Iron Deficiency
Newbolds, Sarah (2023-08-04)Animal studies have suggested that iron deficiency negatively affects dopamine (DA) synthesis and reuptake, which in turn negatively affects memory and cognition. However, the literature on the possible relationships among ...