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Articles 91 - 120 of 121
Full-Text Articles in Cognitive Science
Multilingualism And Memory: Investigating Possible Differences In The Abilities Of Monolingual And Multilingual College Students, Clara E. Barned
Multilingualism And Memory: Investigating Possible Differences In The Abilities Of Monolingual And Multilingual College Students, Clara E. Barned
Honors Projects
This study investigated whether there is a difference in the memories of monolingual and multilingual undergraduate students using simple memorization tasks. There were 46 participants, 30 of which were monolingual (only knew one language) and 16 of which were multilingual (knew two or more languages). There was found to be no significant difference between the performance of the two groups, with the data generating a p-value of 0.557. This study further suggests related avenues of research and ways in which the study could be improved in the future.
Cartilla Pedagógica De Primera Infancia Y Recreación, Maximiliano Quintero Reina, Carlos Alberto Romero Cuestas
Cartilla Pedagógica De Primera Infancia Y Recreación, Maximiliano Quintero Reina, Carlos Alberto Romero Cuestas
Ciencias del Deporte y la Educación Física
La Cartilla Pedagógica de Primera Infancia y Recreación Tomo 1, surge como producto del proyecto de investigación “Aplicación móvil para estimulación psicomotriz, reducción de hábitos de sedentarismo en la primera infancia, municipios de Fusagasugá Colombia, Muzambinho Brasil” el cual es diseñado a partir de la realidad observada en la atención de los niños y niñas de los Hogares Comunitarios de Bienestar Tradicionales que operan en Fusagasugá.
Lo anterior es posible desde la interacción con las madres comunitarias del municipio, el aporte de los estudiantes de la licenciatura en educación básica con énfasis en educación física, recreación y deportes de la …
Interventions For Preventing And Ameliorating Cognitive Deficits In Adults Treated With Cranial Irradiation, Matthew A Kirkman, Julia Day, Karin Gehring, Karolis Zienius, David Grosshans, Martin Taphoorn, Jing Li, Paul D Brown
Interventions For Preventing And Ameliorating Cognitive Deficits In Adults Treated With Cranial Irradiation, Matthew A Kirkman, Julia Day, Karin Gehring, Karolis Zienius, David Grosshans, Martin Taphoorn, Jing Li, Paul D Brown
Faculty, Staff and Student Publications
BACKGROUND: Cognitive deficits are common in people who have received cranial irradiation and have a serious impact on daily functioning and quality of life. The benefit of pharmacological and non-pharmacological treatment of cognitive deficits in this population is unclear. This is an updated version of the original Cochrane Review published in Issue 12, 2014.
OBJECTIVES: To assess the effectiveness of interventions for preventing or ameliorating cognitive deficits in adults treated with cranial irradiation.
SEARCH METHODS: For this review update we searched the Cochrane Register of Controlled Trials (CENTRAL), MEDLINE via Ovid, Embase via Ovid, and PsycInfo via Ovid to 12 …
Loss Of Lamp5 Interneurons Drives Neuronal Network Dysfunction In Alzheimer’S Disease, Yuanyuan Deng, Mian Bi, Fabien Delerue, Shelley L Forrest, Gabriella Chan, Julia Van Der Hoven, Annika Van Hummel, Astrid F Feiten, Seojin Lee, Ivan Martinez-Valbuena, Tim Karl, Gabor G Kovacs, Grant Morahan, Yazi D Ke, Lars M Ittner
Loss Of Lamp5 Interneurons Drives Neuronal Network Dysfunction In Alzheimer’S Disease, Yuanyuan Deng, Mian Bi, Fabien Delerue, Shelley L Forrest, Gabriella Chan, Julia Van Der Hoven, Annika Van Hummel, Astrid F Feiten, Seojin Lee, Ivan Martinez-Valbuena, Tim Karl, Gabor G Kovacs, Grant Morahan, Yazi D Ke, Lars M Ittner
Faculty, Staff and Student Publications
In Alzheimer's disease (AD), where amyloid-β (Aβ) and tau deposits in the brain, hyperexcitation of neuronal networks is an underlying disease mechanism, but its cause remains unclear. Here, we used the Collaborative Cross (CC) forward genetics mouse platform to identify modifier genes of neuronal hyperexcitation. We found LAMP5 as a novel regulator of hyperexcitation in mice, critical for the survival of distinct interneuron populations. Interestingly, synaptic LAMP5 was lost in AD brains and LAMP5 interneurons degenerated in different AD mouse models. Genetic reduction of LAMP5 augmented functional deficits and neuronal network hypersynchronicity in both Aβ- and tau-driven AD mouse models. …
The Effects Of Floral Attributes And Conspecifics On Bumble Bee Forager Memory, Lucas Lauter, Tiffany Dinh
The Effects Of Floral Attributes And Conspecifics On Bumble Bee Forager Memory, Lucas Lauter, Tiffany Dinh
Undergraduate Research Symposium
What do bees remember about flowers? These memories are important for both bees and flowers. The bees have better foraging success and gain more nectar and pollen from flowers when they remember the most rewarding flower types. More memorable flowers will be visited more frequently, resulting in more successful pollination for the plant. At the same time, bees can also learn about flowers from other bees and may remember this information differently. We are training and testing three floral cues and a single social cue to see how the different types of cues affect their learning and memory of rewarding …
Cognitive Task Enhancement Through Alpha Neurofeedback, Hannah L. Meyer, Douglas Peterson
Cognitive Task Enhancement Through Alpha Neurofeedback, Hannah L. Meyer, Douglas Peterson
Honors Thesis
Neurofeedback training has been a recent field of study in neuroscience, as a potential way to increase focus, and possibly boost cognitive performance. Most studies utilize a course of neurofeedback training sessions to find positive results in decreasing ADHD symptoms, depression symptoms, as well as further cognitive changes. In this study, we aim to determine the efficacy of a single session of neurofeedback training in increasing cognitive performance. To do so, we randomly separated 42 volunteers into either a control or experimental group. The experimental group participated in an n-back task both before and after an alpha neurofeedback training session, …
The Significance Of Sonic Branding To Strategically Stimulate Consumer Behavior: Content Analysis Of Four Interviews From Jeanna Isham’S “Sound In Marketing” Podcast, Ina Beilina
Student Theses and Dissertations
Purpose:
Sonic branding is not just about composing jingles like McDonald’s “I’m Lovin’ It.” Sonic branding is an industry that strategically designs a cohesive auditory component of a brand’s corporate identity. This paper examines the psychological impact of music and sound on consumer behavior reviewing studies from the past 40 years and investigates the significance of stimulating auditory perception by infusing sound in consumer experience in the modern 2020s.
Design/methodology/approach:
Qualitative content analysis of audio media was used to test two hypotheses. Four archival oral interview recordings from Jeanna Isham’s podcast “Sound in Marketing” featuring the sonic branding experts …
Validity Of Neural Distance Measures In Representational Similarity Analysis, Fabian A. Soto, Emily R. Martin, Hyeonjeong Lee, Nafiz Ahmed, Juan Estepa, Kianoosh Hosseini, Olivia A. Stibolt, Valentina Roldan, Alycia Winters, Mohammadreza Bayat
Validity Of Neural Distance Measures In Representational Similarity Analysis, Fabian A. Soto, Emily R. Martin, Hyeonjeong Lee, Nafiz Ahmed, Juan Estepa, Kianoosh Hosseini, Olivia A. Stibolt, Valentina Roldan, Alycia Winters, Mohammadreza Bayat
MODVIS Workshop
No abstract provided.
Visual Expertise In An Anatomically-Inspired Model Of The Visual System, Garrison W. Cottrell, Martha Gahl, Shubham Kulkarni
Visual Expertise In An Anatomically-Inspired Model Of The Visual System, Garrison W. Cottrell, Martha Gahl, Shubham Kulkarni
MODVIS Workshop
We report on preliminary results of an anatomically-inspired deep learning model of the visual system and its role in explaining the face inversion effect. Contrary to the generally accepted wisdom, our hypothesis is that the face inversion effect can be accounted for by the representation in V1 combined with the reliance on the configuration of features due to face expertise. We take two features of the primate visual system into account: 1) The foveated retina; and 2) The log-polar mapping from retina to V1. We simulate acquisition of faces, etc., by gradually increasing the number of identities the network learns. …
Individual Differences In Structure Learning, Philip Newlin
Individual Differences In Structure Learning, Philip Newlin
Theses and Dissertations
Humans have a tendency to impute structure spontaneously even in simple learning tasks, however the way they approach structure learning can vary drastically. The present study sought to determine why individuals learn structure differently. One hypothesized explanation for differences in structure learning is individual differences in cognitive control. Cognitive control allows individuals to maintain representations of a task and may interact with reinforcement learning systems. It was expected that individual differences in propensity to apply cognitive control, which shares component processes with hierarchical reinforcement learning, may explain how individuals learn structure differently in a simple structure learning task. Results showed …
Recognition Memory For Auditory And Visual Objects, Sharica Lee, Alexa Salomon, Kevin Mohawk, Laura Werner
Recognition Memory For Auditory And Visual Objects, Sharica Lee, Alexa Salomon, Kevin Mohawk, Laura Werner
Undergraduate Research Symposium Posters
Visual object memory is superior to auditory object memory. Our past research showed that auditory memory was less sensitive to divide attention during study, which may be attributable to representational differences between auditory memory and visual memory.
In the present study, we attempted to equate auditory and visual memory representations in order to adequately investigate the impact of dividing attention on recognition memory.
Recognition memory is thought to rely on two distinct processes, recollection and familiarity. Recollection involves the retrieval of precise qualitative detail and is the most sensitive to dividing attention.
Infants' Intermodal Knowledge Of Gender Using Faces And Voices, Bijoux Cheun, Christina Saliba, Alexis Rice, Marian Espina
Infants' Intermodal Knowledge Of Gender Using Faces And Voices, Bijoux Cheun, Christina Saliba, Alexis Rice, Marian Espina
Undergraduate Research Symposium Posters
Infants begin to use intermodal knowledge to match male and female faces to the corresponding voice, in their first year of life.
Infants have more experience with female faces which should lead to greater intermodal knowledge of female faces.
Previous studies have found inconsistent results. This could be due to the type of stimuli used.
This study uses several pairs of static and dynamic faces to investigate how methodological differences may impact infants' performance.
Forgetting In Item Recognition And Pattern Separation, Mateo Marquez, Rhiannon Soriano Smith
Forgetting In Item Recognition And Pattern Separation, Mateo Marquez, Rhiannon Soriano Smith
Undergraduate Research Symposium Posters
Forgetting is commonly defined as the inability to access information that was once successfully encoded and could be retrieved with a cue, but now leads to memory failure (Frankland et al. 2013).
Memory representations based in the hippocampus engage in pattern separation and are more prone to decay than interference (Sadeh & Pertrzov, 2020).
Extra-hippocampal representations are more prone to interference than decay (Hardt et al. 2013).
Pattern Separation refers to keeping memory representations distinct from one another.
Is there more decay in pattern separation and more interference in item recognition?
The Influence Of Unitization On Recognition Memory, Ting Tong, Amaya D. Bolling-Mcdevitt Hernandez, Audrey Kirsch, Alanna N. Osmanski
The Influence Of Unitization On Recognition Memory, Ting Tong, Amaya D. Bolling-Mcdevitt Hernandez, Audrey Kirsch, Alanna N. Osmanski
Undergraduate Research Symposium Posters
Previous research on recognition memory assumes that associative recognition relies on recollection, whereas item recognition relies on a combination of recollection and familiarity. Unitization refers to the encoding strategy where two separate items are perceived as a single coherent entity or object. Research has demonstrated that unitization can facilitate familiarity-based recognition by generating representations of the stimulus and integrating it into a unified whole. To investigate this issue, we examined the effect of unitization on memory for word-pairs through two types of tests:
Associative Recognition: judge whether word pairs occurred together
Item Recognition: judge whether single words are old or …
Peripheral Blood Cell Counts As Potential Biomarkers For Alzheimer's Disease: A Look At Polygenetic Risk Scores, Melika Cummings, Yimei Lu, Joan Manuel Cue, Neel Patel, Jenifer Do
Peripheral Blood Cell Counts As Potential Biomarkers For Alzheimer's Disease: A Look At Polygenetic Risk Scores, Melika Cummings, Yimei Lu, Joan Manuel Cue, Neel Patel, Jenifer Do
Undergraduate Research Symposium Posters
Blood-based biomarkers for neurodegenerative illnesses such as Alzheimer's disease (AD) have been extensively researched. Alzheimer's disease (AD) is a progressive neurological illness whose progression has been ascribed to gene expression. However, the pathophysiology of these disorders and its relationship to other abnormalities remain unknown. AD has been connected to PBCs, which include erythrocytes, platelets, and leukocytes and have a complicated interaction with the brain system. The pathogenesis of PBCs has been related to a negative influence on established neurodegenerative illnesses such as Alzheimer's. Candidate gene association studies have become more common as progress in mapping the human genome has increased …
A Study Into The Impact Of Screen Time On Student Gpa, Mia Brown, David Santos, Akeisha Belgrave
A Study Into The Impact Of Screen Time On Student Gpa, Mia Brown, David Santos, Akeisha Belgrave
Harrisburg University Research Symposium: Highlighting Research, Innovation, & Creativity
With advances in technology, the use of computers has become a common habit for most college students. Recent studies show that the amount of time spent on those devices can affect their grades. (Class Project)
Effects Of Acute Exercise Intensity On Memory: Considerations Of Timing And Aerobic Endurance, William Meyers, Caroline Loeb, Mary Collins West, Bailey Bass
Effects Of Acute Exercise Intensity On Memory: Considerations Of Timing And Aerobic Endurance, William Meyers, Caroline Loeb, Mary Collins West, Bailey Bass
Honors Theses
The primary objective of this study was to find the optimal acute exercise intensity and post-exercise recovery time to enhance memory retention. A secondary objective of study was to evaluate the influence of aerobic endurance on memory and whether endurance capacity interacts with exercise intensity and post-exercise recovery period to influence memory performance. Participants were 54 undergraduate and graduate students at the University of Mississippi, with an age range of 18-23 years. Participants completed 13 visits in total. The first visit evaluated their aerobic endurance, with the remaining 12 visits including a 3 (Intensity: Control, Moderate, Vigorous) by 4 (Post-Exercise …
Counterfactual Analysis Of Differential Comorbidity Risk Factors In Alzheimer’S Disease And Related Dementias, Yejin Kim, Kai Zhang, Sean I Savitz, Luyao Chen, Paul E Schulz, Xiaoqian Jiang
Counterfactual Analysis Of Differential Comorbidity Risk Factors In Alzheimer’S Disease And Related Dementias, Yejin Kim, Kai Zhang, Sean I Savitz, Luyao Chen, Paul E Schulz, Xiaoqian Jiang
Faculty, Staff and Student Publications
Alzheimer’s disease and related dementias (ADRD) is a multifactorial disease that involves several different etiologic mechanisms with various comorbidities. There is also significant heterogeneity in the prevalence of ADRD across diverse demographics groups. Association studies on such heterogeneous comorbidity risk factors are limited in their ability to determine causation. We aim to compare counterfactual treatment effects of various comorbidity in ADRD in different racial groups (African Americans and Caucasians). We used 138,026 ADRD and 1:1 matched older adults without ADRD from nationwide electronic health records, which extensively cover a large population’s long medical history in breadth. We matched African Americans …
Extending The Null Hypothesis To Invertebrate Pain Sentience, Eva Kakrada, Michael Colombo
Extending The Null Hypothesis To Invertebrate Pain Sentience, Eva Kakrada, Michael Colombo
Animal Sentience
In 1985 Macphail proposed his Null Hypothesis that there were no qualitative differences in intelligence across vertebrate species. A recent review of the literature has found overwhelming support for his view. Studies also suggest that, with respect to cognition and the neural mechanisms that support it, the Null Hypothesis should be extended to invertebrates. We suggest, on the same premise, that the Null Hypothesis should be extended to pain sentience in invertebrates. Although few studies have been conducted, behavioural and neural evidence for pain sentience has been found in various representative invertebrate species.
Beginnings, Elizabeth Becker
Beginnings, Elizabeth Becker
Dance (MFA) Theses
Researcher Elizabeth Becker uses personal experiences of pregnancy alongside scholarly research on the developmental movement patterns of the human embryo, fetus, and newborn’s first year of life to explore the multiplicity of these movement patterns within and outside the womb. Becker explores the relationship between the fertilization, germinal, embryonic, and fetal stages in relation to a newborn and its mother. These movement patterns within the beginning stages of life are valuable to research because they simulate neurodevelopmental patterns, which help wire the central nervous system in early childhood. These movements also help lay the foundation for sensory-motor development and life-long …
The Electrophysiological Correlates Of Text Integration And Direct Vs. Indirect Articles: A Centralized And Lateralized Examination, Deanna C. Hall
The Electrophysiological Correlates Of Text Integration And Direct Vs. Indirect Articles: A Centralized And Lateralized Examination, Deanna C. Hall
Theses and Dissertations (Comprehensive)
As we read, we develop mental models of the discourse content called situation models. Situation models are integral to how we keep track of information, and to do so in an ongoing event incoming information needs to be integrated into the model or discarded. The type of information being presented, and its relation to prior data, impacts how that new information is processed. The current research examined discourse passages containing concepts that were either previously mentioned (match), mentioned with a general term (general category), unmentioned in lieu of another concept (mismatch), or completely unmentioned previously (indeterminate), and examined how these …
A Comparative Test Of Creative Thinking In Preschool Children And Dolphins, Dawn Melzer, Deirdre Yeater, Madison Bradley, Heather M. Hill, Gonzalo Guerra, Kimberly Salazar, Teresa Bolton, Kathleen M. Dudzinski
A Comparative Test Of Creative Thinking In Preschool Children And Dolphins, Dawn Melzer, Deirdre Yeater, Madison Bradley, Heather M. Hill, Gonzalo Guerra, Kimberly Salazar, Teresa Bolton, Kathleen M. Dudzinski
Psychology Faculty Publications
Creativity is considered one aspect of intelligence. Including creativity allows for more room for expression (e.g., participants can respond with movement instead of written or verbal responses) than in standard intelligence assessments. The Torrance Tests of Creative Thinking (TTCT; Torrance, 1974) are the leading method of assessing creative abilities in school-aged humans and above. To assess creativity in young humans and nonhuman animals, modifications must be made to facilitate nonverbal responses. In the current study, a cross-species comparison was conducted between preschoolers and bottlenose dolphins to examine responses to a modified creativity task in which both species were trained to …
Linguistic Variation From Cognitive Variability: The Case Of English 'Have', Muye Zhang
Linguistic Variation From Cognitive Variability: The Case Of English 'Have', Muye Zhang
Linguistics Graduate Dissertations
In this dissertation, I seek to construct a model of meaning variation built upon variability in linguistic structure, conceptual structure, and cognitive makeup, and in doing so, exemplify an approach to studying meaning that is both linguistically principled and neuropsychologically grounded. As my test case, I make use of the English lexical item ‘have' by proposing a novel analysis of its meaning based on its well-described variability in English and its embed- ding into crosslinguistically consistent patterns of variation and change.
I support this analysis by investigating its real-time comprehension patterns through behavioral, electropsychophysiological, and hemodynamic brain data, thereby incorporating …
Pushing It To The Limit: Determining Asian Elephant (Elephas Maximus) Olfactory Sensitivity And Discrimination Through A Behavioral Choice Task, Matthew S. Rudolph
Pushing It To The Limit: Determining Asian Elephant (Elephas Maximus) Olfactory Sensitivity And Discrimination Through A Behavioral Choice Task, Matthew S. Rudolph
Theses and Dissertations
Elephants have shown remarkable olfactory capabilities. Their sense of smell impacts their foraging choices, behavior, and ultimately, survival. Being able to detect a target odor can allow elephants to locate specific resources, identify threats, and find receptive conspecifics. Previous studies have shown that elephants can consistently detect target odors, but have not identified the limits of this detection. Thus, to investigate the extent of elephants’ odor detection capabilities, we tested Asian elephants in a two-step odor discrimination task. First, we investigated whether elephants could detect odors at varying levels of dilution after a training procedure, and then whether they could …
Animal Sentience: History, Science, And Politics, Andrew N. Rowan, Joyce M. D'Silva, Ian J.H. Duncan, Nicholas Palmer
Animal Sentience: History, Science, And Politics, Andrew N. Rowan, Joyce M. D'Silva, Ian J.H. Duncan, Nicholas Palmer
Animal Sentience
This target article has three parts. The first briefly reviews the thinking about nonhuman animals’ sentience in the Western canon: what we might know about their capacity for feeling, leading up to Bentham’s famous question “can they suffer?” The second part sketches the modern development of animal welfare science and the role that animal-sentience considerations have played therein. The third part describes the launching, by Compassion in World Farming, of efforts to incorporate animal sentience language into public policy and regulations concerning human treatment of animals.
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
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 …
Ultrafast Two-Photon Imaging Of A High-Gain Voltage Indicator In Awake Behaving Mice, Vincent Villette, Mariya Chavarha, Ivan K Dimov, Jonathan Bradley, Lagnajeet Pradhan, Benjamin Mathieu, Stephen W Evans, Simon Chamberland, Dongqing Shi, Renzhi Yang, Benjamin B Kim, Annick Ayon, Abdelali Jalil, François St-Pierre, Mark J Schnitzer, Guoqiang Bi, Katalin Toth, Jun Ding, Stéphane Dieudonné, Michael Z Lin
Ultrafast Two-Photon Imaging Of A High-Gain Voltage Indicator In Awake Behaving Mice, Vincent Villette, Mariya Chavarha, Ivan K Dimov, Jonathan Bradley, Lagnajeet Pradhan, Benjamin Mathieu, Stephen W Evans, Simon Chamberland, Dongqing Shi, Renzhi Yang, Benjamin B Kim, Annick Ayon, Abdelali Jalil, François St-Pierre, Mark J Schnitzer, Guoqiang Bi, Katalin Toth, Jun Ding, Stéphane Dieudonné, Michael Z Lin
Faculty, Staff and Students Publications
Optical interrogation of voltage in deep brain locations with cellular resolution would be immensely useful for understanding how neuronal circuits process information. Here, we report ASAP3, a genetically encoded voltage indicator with 51% fluorescence modulation by physiological voltages, submillisecond activation kinetics, and full responsivity under two-photon excitation. We also introduce an ultrafast local volume excitation (ULoVE) method for kilohertz-rate two-photon sampling in vivo with increased stability and sensitivity. Combining a soma-targeted ASAP3 variant and ULoVE, we show single-trial tracking of spikes and subthreshold events for minutes in deep locations, with subcellular resolution and with repeated sampling over days. In the …
The Neuroscientific Study Of The Self: Methodological And Theoretical Challenges, Cynthia J. Najdowski, Samuel E. Winer
The Neuroscientific Study Of The Self: Methodological And Theoretical Challenges, Cynthia J. Najdowski, Samuel E. Winer
Psychology Faculty Scholarship
Neuroscientific research methods, such as brain imaging techniques, have increasingly been applied to social cognitive research efforts and, in particular, to the study of the self. In this essay we discuss the ability of such research to shed light on the emergent, dynamic psychological phenomenon of self. Although neuroscientific tools can be useful for gaining general knowledge about associated underlying structures, a careful consideration of the methodological and theoretical issues discussed herein is necessary to avoid simplifying or reifying the self.
Examining Neurophysiological Evidence Of Age-Related Interactions Of Sensory And Cognitive Processes During Speech Processing, Cady Kristen Block
Examining Neurophysiological Evidence Of Age-Related Interactions Of Sensory And Cognitive Processes During Speech Processing, Cady Kristen Block
Psychology Theses & Dissertations
The present study sought to examine the contribution of sensory and cognitive factors on speech processing as evidenced by ERP measures and to find support for the Sensory Cognitive Interaction Theory (SCIT) and the Effortfulness Hypothesis in that older adults. who experience sensory deficits with normal aging. must put forth increased effort during early sensory stages of speech processing that may compromise subsequent semantic performance and recall of information. In the present investigation. younger and older adults performed a sentence verification task at low and high presentation levels (PL). Accuracy and response time to sentence verifications were assessed along with …
Validation Of A Serotonin Depletion Checklist In Parkinson’S Disease, Kelly Diane Darby Holder
Validation Of A Serotonin Depletion Checklist In Parkinson’S Disease, Kelly Diane Darby Holder
Loma Linda University Electronic Theses, Dissertations & Projects
The distinctive pathological marker of Parkinson’s Disease (PD) is the progressive death of neurons that produce dopamine; however, there are also major alterations in the production of quantities of other neurotransmitters, such as norepinephrine and serotonin that contribute to the signs, symptoms, neuropsychological manifestations of the diseases. PD patients can be divided into classes based on the manifestation of motor symptoms, type A, classified as tremor dominant, and type B PD, classified as akinetic. Type B PD patients, often manifest symptoms in which serotonin deficiency plays an important role, such as frontal cognitive impairments, which often includes a history of …