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Articles 1 - 4 of 4
Full-Text Articles in Social and Behavioral Sciences
The Role Of Medial Septum Cholinergic Function In Processing Self-Movement Cues To Maintain Spatial Orientation, Jenna Rae Osterlund
The Role Of Medial Septum Cholinergic Function In Processing Self-Movement Cues To Maintain Spatial Orientation, Jenna Rae Osterlund
Graduate Research Theses & Dissertations
Wandering is the most life-threatening and commonly reported symptom of Alzheimer’s Disease (AD), a neurodegenerative disorder characterized by an inability to maintain spatial orientation. The often deadly consequences of wandering are projected to rise in the coming decades due to the advancing aged population. These upcoming challenges necessitate a more comprehensive understanding of the neurobiology of spatial orientation in order to evaluate novel therapeutic techniques for symptoms such as wandering. The inability to maintain spatial orientation in AD may be due to the pathological degeneration of the hippocampal cholinergic system. This neurological system is conserved across species for its function …
Active Control Of Locomotion Facilitates Nonvisual Navigation, John W. Philbeck, Roberta L. Klatzky, Marlene Behrmann, Jack M. Loomis, Jeremy Goodridge
Active Control Of Locomotion Facilitates Nonvisual Navigation, John W. Philbeck, Roberta L. Klatzky, Marlene Behrmann, Jack M. Loomis, Jeremy Goodridge
Marlene Behrmann
In some navigation tasks, participants are more accurate if they view the environment beforehand. To characterize the benefits associated with visual previews, 32 blindfolded participants were guided along simple paths and asked to walk unassisted to a specified destination (e.g., the origin). Paths were completed without vision, with or without a visual preview of the environment. Previews did not necessarily improve nonvisual navigation. When previewed landmarks stood near the origin or at off-path locations, they provided little benefit; by contrast, when they specified intermediate destinations (thereby increasing the degree of active control), performance was greatly enhanced. The results suggest that …
Homing By Path Integration When A Locomotion Trajectory Crosses Itself, Naohide Yamamoto, Jayleen A. Meléndez, Derek T. Menzies
Homing By Path Integration When A Locomotion Trajectory Crosses Itself, Naohide Yamamoto, Jayleen A. Meléndez, Derek T. Menzies
Psychology Faculty Publications
Path integration is a process with which navigators derive their current position and orientation by integrating self-motion signals along a locomotion trajectory. It has been suggested that path integration becomes disproportionately erroneous when the trajectory crosses itself. However, there is a possibility that this previous finding was confounded by effects of the length of a traveled path and the amount of turns experienced along the path, two factors that are known to affect path integration performance. The present study was designed to investigate whether the crossover of a locomotion trajectory truly increases errors of path integration. In an experiment, blindfolded …
Observing The Unwatchable Through Acceleration Logging Of Animal Behavior, Danielle D. Brown, Roland Kays, Martin Wikelski, Rory Wilson, A. Peter Klimley
Observing The Unwatchable Through Acceleration Logging Of Animal Behavior, Danielle D. Brown, Roland Kays, Martin Wikelski, Rory Wilson, A. Peter Klimley
Methodology and Animal Models in Research
Behavior is an important mechanism of evolution and it is paid for through energy expenditure. Nevertheless, field biologists can rarely observe animals for more than a fraction of their daily activities and attempts to quantify behavior for modeling ecological processes often exclude cryptic yet important behavioral events. Over the past few years, an explosion of research on remote monitoring of animal behavior using acceleration sensors has smashed the decades-old limits of observational studies. Animal-attached accelerometers measure the change in velocity of the body over time and can quantify fine-scale movements and body postures unlimited by visibility, observer bias, or the …