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Full-Text Articles in Life Sciences
Modularity Of Feedback For State-Dependent Guidance Of Navigation In Mouse Visual Cortex, Andrew M. Meier
Modularity Of Feedback For State-Dependent Guidance Of Navigation In Mouse Visual Cortex, Andrew M. Meier
Arts & Sciences Electronic Theses and Dissertations
Navigating through unpredictable environments requires an efficiently organized sensory system capable of adapting to behavioral demands. In the mammalian visual system, two adaptations which have arisen to meet these demands are parallel processing and top-down feedback of internally generated expectations and contextual information for adjusting responses to match the needs of the current behavioral task. Mouse visual cortex exhibits the latter of these organizing principles, like other mammals, in the form of a molecular layer (Layer 1) which receives feedback to contextually adapt sensory responses from the outside world. The first of these organizing principles, parallel processing streams, generally takes …
Costs Of Group Locomotion: How Infant-Carrying And Group Members Mediate Walking Speed Decisions In North American And East African Populations, Leah M. Bouterse
Costs Of Group Locomotion: How Infant-Carrying And Group Members Mediate Walking Speed Decisions In North American And East African Populations, Leah M. Bouterse
Honors Projects
A major portion of humans’ activity-based energy expenditure is taken up by locomotion, particularly walking. Humans can offset the energetic expenditure of walking in numerous ways, both evolutionary (such as changes in body shape) and culturally. Behaviorally, people can choose to walk in a variety of ways, including alone or with a group, carrying loads, and walking quickly or more slowly. All of these behaviors have energetic outcomes and as such can be important windows into how populations and groups adjust to different constraints. While sex differences in speed of paired walkers have been established by others, the dynamics of …