Social and Behavioral Sciences Commons^™

The Role Of Gamma Oscillations And Cortical Inhibition In The Development Of Working Memory In Adolescence, Christopher P. Walker

Dissertations & Theses (Open Access)

Adolescence is a dynamic period of social, cognitive, and biological changes. In particular, working memory, the ability to actively encode and maintain information over a short period of time, develops early in childhood and gradually increases in capacity and stability during adolescence. The precise neurophysiological mechanism by which working memory capacity increases during adolescence is unclear. The objective of this investigation was to evaluate the role of cortical gamma-band (> 30 Hz) oscillations—which are associated with working memory in adults—for the development of working memory capacity in adolescents, and to identify the extent to which the temporal profile of gamma-aminobutyric …

How Does The Brain Represent Digits? Investigating The Neural Correlates Of Symbolic Number Representation Using Fmri-Adaptation, Celia Goffin

Electronic Thesis and Dissertation Repository

How does the brain represent numerical symbols (e.g., Arabic digits)? Activity in left parietal regions correlates with symbolic number processing. Research with functional resonance imaging adaptation (fMRI-A) indicates that the intraparietal sulcus (IPS) exhibits a rebound (increase in activation) effect when a repeatedly presented number is followed by a new number. Importantly, this rebound effect is modulated by numerical ratio as well as the difference between presented numbers (distance). This ratio-dependent rebound effect could reflect a link between symbolic numerical representation and an approximate number system (ANS). In this doctoral dissertation, fMRI-A is used to investigate mechanisms underlying symbolic number …

Across Continents And Demographics, Unpredictable Maternal Signals Are Associated With Children's Cognitive Function, Elysia Poggi Davis, Riikka Korja, Linnea Karlsson, Laura M. Glynn, Curt A. Sandman, Brian Vegetabile, Eeva-Leena Kataja, Saara Nolvi, Eija Sinervä, Juho Pelto, Hasse Karlsson, Hal S. Stern, Tallie Z. Baram

Psychology: Faculty Scholarship

Background

Early life experiences have persisting influence on brain function throughout life. Maternal signals constitute a primary source of early life experiences, and their quantity and quality during sensitive developmental periods exert enduring effects on cognitive function and emotional and social behaviors. Here we examined if, in addition to established qualitative dimensions of maternal behavior during her interactions with her infant and child, patterns of maternal signals may contribute to the maturation of children's executive functions. We focused primarily on effortful control, a potent predictor of mental health outcomes later in life.

Methods

In two independent prospective cohorts in Turku, …

Infant Emotion Regulation With Mothers And Fathers: The Roles Of Infant Temperament And Parent Psychopathology, Ashley Quigley

Masters Theses & Specialist Projects

The ability to regulate emotions is a key part of infants’ social and emotional development, but this ability may differ due to different factors internal and external to the infant. The current study examined the association between infant temperament and parent psychopathology to predict emotion regulation strategies in a sample of 4-montholds using the diathesis-stress model (Monroe & Simons, 1991). Parent-report questionnaires were used to measure infant temperament (the Infant-Behavior Questionnaire-Revised, IBQ-R; Gartstein & Rothbart, 2003) and parental psychopathology (Inventory of Depression and Anxiety, IDAS; Watson et al., 2007). Infants’ use of parent-focused, attentional distraction, and self-soothing strategies were rated …

The Origins And Development Of Visual Categorization, Laura Cabral

Electronic Thesis and Dissertation Repository

Forming categories is a core part of human cognition, allowing us to make quickly make inferences about our environment. This thesis investigated some of the major theoretical interpretations surrounding the neural basis of visual category development. In adults, there are category-selective regions (e.g. in ventral temporal cortex) and networks (which include regions outside traditional visual regions—e.g. the amygdala) that support visual categorization. While there has been extensive behavioural work investigating visual categorization in infants, the neural sequence of development remains poorly understood. Based on behavioral experiments, one view holds that infants are initially using subcortical structures to recognize faces. Indeed, …

Digital Childhood: How Mobile Devices Impact Child Development And Adolescent Behavior, Brenna Pinnock

Global Honors Theses

A new wave of smart and modern technology has integrated into lives and homes of families everywhere, thus the effects of early and continual exposure to this technology remain unknown. This is a global problem as many people around the world have access to this technology and interact with it in different ways. Whether it’s embracing it for future generations like Japan, or helping the newer generations with their overuse, almost addiction like tendencies with these devices like in South Korea. Around the world children are engaging with these devices at a young age and it’s found to have an …

Awareness Of Emotions Leads To Self-Efficacy Among College Students, Amy Lee, Emily M. Delacruz

Publications and Research

Self-efficacy is one’s belief in their own ability to succeed in a particular situation or accomplish a task (Bandura, 1977). Previous research has shown that the effort one puts into achieving goals, coping abilities, and behavior in the face of opposition are all heavily influenced by efficacy beliefs. Self reflection and knowledge of inner feelings, areas in which one excel, areas in which one do poorly, and areas in which one need to improve aid in the establishment of goals (Bandura, 1977 & Cervone, 2004). Inner feelings are bound to occur when one make sense of what one can and …

First Thirty Days Of Life: Examining Calf Behavioral Development In Beluga Whales (Delphinapterus Leucas) And Pacific White-Sided Dolphins (Lagenorhyncus Obliquidens) At One Zoological Facility, Kendal Smith

Master's Theses

Cetacean development is important for general comparative understanding and the implementation of informed husbandry policies. Due to the inaccessibility of many of these species in the wild, researchers can study managed care populations to better understand basic developmental patterns of cetaceans, as well as to improve husbandry policies for facility animals. However, no previous studies have attempted to observe the behavioral development of Pacific white-sided dolphins (Lagenorhyncus obliquidens). Eight beluga whale calves and four Pacific white-sided dolphin calves were observed for the first 30 days of life to determine the developmental trajectory of several typically monitored behaviors. The …

Selection Or Socialization? A Propensity Score Matched Study Of Personality And Life Events, Emorie Beck

Arts & Sciences Electronic Theses and Dissertations

Across the lifespan, personality changes in normative ways, but the source of such change remains ambiguous. Life events may be one impetus of such change, but strong selection effects into such events makes it unclear whether such change is driven by already existing differences (selection) between people or socialization following life events. In a preregistered study, we test socialization and selection effects of the Big 5 and life events using a large (N = 19,627) representative sample of Germans and 12 life events (e.g. marriage, retirement) from the GSOEP. Using propensity score matching and Bayesian multilevel growth curve models, we …

Lectures And Test Bank For Human Growth And Development (Gsw), Ellen Cotter

Psychology, Sociology, Anthropology, and Social Work Ancillary Materials

This set of lecture slides and test banks for Human Growth and Development was created through an ALG Round Eleven Mini-Grant for Ancillary Materials Creation and Revision. The materials are intended to support Lifespan Development by Martha Lally and Suzanne Valentine-French.

Topics covered include:

• Heredity, Prenatal Development, and Birth
• Infancy
• Early Childhood
• Adolescence
• Adulthood
• Death and Dying

Characterizing The Development Of Episodic Memory And Assessing The Reliability Of Fmri Measures, Lingfei Tang

Wayne State University Dissertations

The ability to remember past events is critical for everyday life and showed robust improvement over development from childhood to adulthood. With advances in noninvasive neuroimaging methods such as functional MRI in recent years, research efforts have been focused on identifying neural correlates underpinning developmental gains in memory performance. In my dissertation work, using a widely-validated subsequent memory paradigm, I aim to characterize functional MRI correlates of memory development. Specifically, I focused my investigation on identifying age differences in the functional patterns of two brain regions critical for memory, the prefrontal cortex and the hippocampus. Focusing on the prefrontal cortex …

Predicting Outcomes Of American Youths' Shift Toward E-Cigarette Use, D J. Resendez

Walden Dissertations and Doctoral Studies

There has been a shift toward e-cigarette use and away from tobacco smoking among American youth. Despite effects of ongoing public health campaigns that bring attention to the harmful effects of tobacco and nicotine use generally, youths might not perceive e-cigarette use to be unhealthful in terms of psychological functioning. This study was an investigation of the impact of the method of tobacco use (cigarette or e-cigarette), past cessation attempts, cravings or needs to use tobacco, and serious cognitive difficulties, upon youths' intentions concerning future tobacco usage. The conceptual framework was based upon the self-medication hypothesis, biopsychosocial model, and social …

Is It Who Am I Or Who Do You Think I Am? Identity Development Of Adolescents With Substance Use Disorders, Danielle N. Treiber

Antioch University Dissertations & Theses

The purpose of this study was to unearth how adolescents with substance use disorders achieve the task of identity formation and the construction of self-concept in the midst of the drug culture and society that exists. It sought to uncover the social constructs designed to ignore and/or remove human complexities and allow an intersectional approach to be brought to a study on this population. Historically, there has been a failure to investigate the underlying social attitudes and behaviors that impact the very delicate and vulnerable process of finding self. Psychosocial and relational adjustment are strongly influenced by the extent to …