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Infant Motor Development Predicts The Dynamics Of Movement During Sleep, Aaron Demasi, Melissa N. Horger, Anat Scher, Sarah E. Berger

Publications and Research

The characteristics of infant sleep change over the first year. Generally, infants wake and move less at night as they grow older. However, acquisition of new motor skills leads to temporary increases in night waking and movement at night. Indeed, sleep-dependent movement at night is important for sensorimotor development. Nevertheless, little is known about how movement during sleep changes as infants accrue locomotor experience. The current study investigated whether infant sleep and movement during sleep were predicted by infants' walking experience. Seventy-eight infants wore an actigraph to measure physical activity during sleep. Parents reported when their infants first walked across …

Psychology Of Adolescence, Brent Maximin

Open Educational Resources

No abstract provided.

Adolescence & Emerging Adulthood, Lisa Babel

Open Educational Resources

No abstract provided.

Parent-Infant Relationships, Lisa Babel

Open Educational Resources

No abstract provided.

A Micro-Optic Stalk (Muos) System To Model The Collective Migration Of Retinal Neuroblasts, Stephanie Zhang, Miles Markey, Caroline D. Pena, Tadmiri Venkatesh, Maribel Vasquez

Publications and Research

Contemporary regenerative therapies have introduced stem-like cells to replace damaged neurons in the visual system by recapitulating critical processes of eye development. The collective migration of neural stem cells is fundamental to retinogenesis and has been exceptionally well-studied using the fruit fly model of Drosophila Melanogaster. However, the migratory behavior of its retinal neuroblasts (RNBs) has been surprisingly understudied, despite being critical to retinal development in this invertebrate model. The current project developed a new microfluidic system to examine the collective migration of RNBs extracted from the developing visual system of Drosophila as a model for the collective motile processes …

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 …

Contextual Fear Memory Modulates Psd95 Phosphorylation, Ampar Subunits, Pkmζ And Pi3k Differentially Between Adult And Juvenile Rats, Roseanna M. Zanca, Shirley Sanay, Jorge A. Avila, Edgar Rodriguez, Harry N. Shair, Peter A. Serrano

Publications and Research

It is well known that young organisms do not maintain memories as long as adults, but the mechanisms for this ontogenetic difference are undetermined. Previous work has revealed that the α-amino-3-hydroxy-5-methyl-4isoxazolepropionic acidreceptor (AMPAr)subunits aretraffickedinto the synaptic membranefollowing memory retrieval in adults. Additionally, phosphorylated PSD-95-pS295 promotes AMPAr stabilization at the synapse. We investigated these plasticity related proteins as potential mediators in the differential contextual stress memory retrieval capabilities observed between adult and juvenile rats. Rats were assigned to either pedestal stress (1h) or no stress control (home cage). Each animal was placed alone in an open field for 5minat the base …

Perspectives On Natural Philosophy, Stanley N. Salthe

Publications and Research

This paper presents a viewpoint on natural philosophy focusing on the organization of substance, as well as its changes as invited by the Second Law of thermodynamics. Modes of change are pointed to as definitive of levels of organization; these include physical, chemical, and biological modes of change. Conceptual uses of the subsumptive hierarchy format are employed throughout this paper. Developmental change in dissipative structures is examined in some detail, generating an argument for the use of final causality in studies of natural systems. Considerations of ‘internalism’ in science are presented along the way.

Egfr Polymorphisms In Drosophila Melanogaster, Stacie Chue, Neha Mehta, Samantha Poon, Heather Trazino

Publications and Research

No abstract provided.

The Variability Of Neural Responses To Naturalistic Videos Change With Age And Sex, Agustin Petroni, Samantha Cohen, Lei Ai, Nicolas Langer, Simon Henin, Tamara Vanderwal, Michael P. Milham, Lucas C. Parra

Publications and Research

Neural development is generally marked by an increase in the efficiency and diversity of neural processes. In a large sample (n=114) of human children and adults with ages ranging from 5 to 44 yr, we investigated the neural responses to naturalistic video stimuli. Videos from both real-life classroom settings and Hollywood feature films were used to probe different aspects of attention and engagement. For all stimuli, older ages were marked by more variable neural responses. Variability was assessed by the intersubject correlation of evoked electroencephalographic responses. Young males also had less-variable responses than young females. These results were replicated in …

Critical Agrarian Studies In Theory And Practice, Marc Edelman, Wendy Wolford

Publications and Research

Abstract: In this introductory article we argue for renewed attention to life and labor on and of the land—or what we call the field of Critical Agrarian Studies. Empirically rich and theoretically rigorous studies of humanity’s relationship to “soil” remain essential not just for historical analysis but for understanding urgent contemporary crises, including widespread food insecurity, climate change, the proliferation of environmental refugees, growing corporate power and threats to biodiversity. The article introduces an innovative and varied collection of works in Critical Agrarian Studies and also examines the intellectual and political history of this broader field.

Resumen: En este artículo …

Statistical Learning In Songbirds: From Self-Tutoring To Song Culture, Olga Fehér, Iva Ljubičić, Kenta Suzuki, Kazuo Okanoya, Ofer Tchernichovski

Publications and Research

At the onset of vocal development, both songbirds and humans produce variable vocal babbling with broadly distributed acoustic features. Over development, these vocalizations differentiate into the well-defined, categorical signals that characterize adult vocal behaviour. A broadly distributed signal is ideal for vocal exploration, that is, for matching vocal production to the statistics of the sensory input. The developmental transition to categorical signals is a gradual process during which the vocal output becomes differentiated and stable. But does it require categorical input?We trained juvenile zebra finches with playbacks of their own developing song, produced just a few moments earlier, updated continuously …

Political Inclusion And Educational Investment, Stephen D. O'Connell

Economics Working Papers

Using exogenous geographic variation in exposure to 1993 reforms that introduced seat quotas for women in local government in India, I find a sizable increase in the enrollment rate of male and female school-age children resulting from additional exposure to women leaders. Effects are particularly concentrated among poorer households and those with less- educated proximate role models, and were commensurate with reductions in idle time and household-enterprise employment. There is no evidence for the effects being facilitated by changes in school infrastructure, the labor market, or among broader social factors related to intrahousehold bargaining. Using textual data from the news …

Inter- And Intralimb Adaptations To A Sensory Perturbation During Activation Of The Serotonin System After A Low Spinal Cord Transection In Neonatal Rats, Misty M. Strain, Sierra D. Kauer, Tina Kao, Michele R. Brumley

Publications and Research

Activation of the serotonin system has been shown to induce locomotor activity following a spinal cord transection. This study examines how the isolated spinal cord adapts to a sensory perturbation during activation of the serotonergic system. Real-time and persistent effects of a perturbation were examined in intact and spinal transected newborn rats. Rats received a spinal surgery (sham or low thoracic transection) on postnatal day 1 and were tested 9 days later. At test, subjects were treated with the serotonergic receptor agonist quipazine (3.0 mg/kg) to induce stepping behavior. Half of the subjects experienced range of motion (ROM) restriction during …

From Antipolitics To Post-Neoliberalism: A Conversation With James Ferguson, Nils Gilman, Miriam Ticktin, James Ferguson

Publications and Research

Humanity co-editors Nils Gilman and Miriam Ticktin spoke with James Ferguson on May 31, 2013, at Stanford University.

Gene Set Enrichment Analysis (Gsea) Of Toxoplasma Gondii Expression Datasets Links Cell Cycle Progression And The Bradyzoite Developmental Program, Matthew Mcknight Croken, Weigang Qiu, Michael W. White, Kami Kim

Publications and Research

Background Large amounts of microarray expression data have been generated for the Apicomplexan parasite Toxoplasma gondii in an effort to identify genes critical for virulence or developmental transitions. However, researchers’ ability to analyze this data is limited by the large number of unannotated genes, including many that appear to be conserved hypothetical proteins restricted to Apicomplexa. Further, differential expression of individual genes is not always informative and often relies on investigators to draw big-picture inferences without the benefit of context. We hypothesized that customization of gene set enrichment analysis (GSEA) to T. gondii would enable us to rigorously test whether …

The Effect Of Age On Neural Processing Of Pleasant Soft Touch Stimuli, April C. May, Jennifer L. Stewart, Susan F. Tapert, Martin P. Paulus

Publications and Research

Tactile interactions with our environment stimulate afferent fibers within the skin, which deliver information about sensations of pain, texture, itch and other feelings to the brain as a comprehensive sense of self. These tactile interactions can stimulate brain regions involved in interoception and reward processing. This study examined subjective, behavioral, and neural processing as a function of age during stimulation of A-beta (Aβ) and C tactile (CT) afferents using a soft brush stroke task. 16 adolescents (ages 15–17), 22 young adults (ages 20–28), and 20 mature adults (ages 29–55) underwent a simple continuous performance task while periodically anticipating and experiencing …

Using Web Analytics For Mobile Interface Development, Junior R. Tidal

Publications and Research

Libraries are developing mobile Web sites to keep up with the dynamic landscape of emerging technologies. Library web developers can use analytics software to better understand users and to develop a user-centered mobile Web site. Evidence based design decisions can drive mobile web interface development.

On The Social Construction Of Hellenism Cold War Narratives Of Modernity, Development And Democracy For Greece, Despina Lalaki

Publications and Research

Hellenism is one of those overarching, ever-changing narratives always subject to historical circumstances, intellectual fashions and political needs. Conversely, it is fraught with meaning and conditioning powers, enabling and constraining imagination and practical life. In this essay I tease out the hold that the idea of Hellas has had on post-war Greece and I explore the ways in which the American anti-communist rhetoric and discussions about political and economic stabilization appropriated and rearticulated Hellenism. Central to this history of transformations are the archaeologists; the archaeologists as intellectuals, as producers of culture who, while stepping in and out of their disciplinary …

Culture Ontogeny: Lifespan Development Of Religion And The Ethics Of Spiritual Counselling, Glen Milstein, Amy Manierre

Publications and Research

The counsellor has an ethical obligation to treat the whole person. Humans are cultural beings and the foundation of most cultures is religion. Religion and culture are received from our early relation~ ships and modified through later relationships across the lifespan. The paper introduces the term "culture ontogeny" to emphasize that this is a biological process wherein abstract ideas of culture and religion become material in the developing neurophysiology of each brain. A framework and methods are offered to examine the changing roles of religion in clients' emotional self~ structure, inclusive of those who describe themselves as spiritual, not religious. …

Nothing New: A Small Enterprise Development Project In West Africa, Aaron Barlow, Bronwyn Hughes

Publications and Research

"This article presents a specific strategy for the aid worker wishing to encourage income-generating enterprises followed by an analysis of the initiation of a construction-supplies business in the north of Togo, West Africa in the late 1980s. This article also stresses project assessment as insurance against failure for the aid organization. Together, these can lead to self-sustaining projects and the furthering of real development."

“Peace Is More Than The End Of Bombing”: The Second Stage Of The Vieques Struggle, Sherrie Baver

Publications and Research

The nature of colonialism in Puerto Rico has caused most political issues to be viewed within the framework of status politics. In the first stage of the struggle to expel the U.S. Navy from the island (1999–2003), civil society in Puerto Rico united when the issues were reframed with links not to status politics but to human rights and social justice. Viequenses symbolized for Puerto Ricans in Puerto Rico, on the mainland, and in the world at large the costs of military colonialism. In the second stage of the struggle, since the military’s departure, Viequenses have struggled to control the …

D1 Dopamine Receptor Regulation Of Microtubule-Associated Protein-2 Phosphorylation In Developing Cerebral Cortical Neurons, Z.-M. Song, Ashiwel S. Undieh, Y.-Y. Fang, L. Zhang, S. Dracheva, S.C. Sealfon, M.S. Lidow

Publications and Research

This study addresses the hypothesis that the previously described capacity of D1 dopamine receptors (D1Rs) to regulate dendritic growth in developing cortical neurons may involve alterations in the phosphorylation state of microtubuleassociated protein-2 (MAP2). The changes in phosphorylation of this protein are known to affect its ability to stabilize the dendritic cytoskeleton. The study involved two systems: primary cultures of mouse cortical neurons grown in the presence of the D1R agonists, SKF82958 or A77636, and the cortex of neonatal transgenic mice overexpressing the D1A subtype of D1R. In both models, a decrease in dendritic extension corresponded with an elevation in …

Including Migration In The Development Calculus: The Dominican Republic And Other Caribbean Countries, Sherrie Baver

Publications and Research

Study of development in the Caribbean Basin is incomplete with- out considering the socioeconomic impact of international labor migration on this region, which is defined here as including Mexico, the Carib- bean archipelago, Central America, Guyana, Suriname, and French Guiana. Most of the seven books under review deal with the specific case of the Dominican Republic and in doing so bring new theoretical sophistication and depth to examining the link between migration and development. In this way, they expand understanding of the present-day Dominican reality, which involves massive migration by Dominicans to the United States-mainly to New York but also …