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个人简介
My research interests are in the general areas of comparative cognition and animal learning. I use the results of behavioral experiments to make inferences about the systems controlling simple behavior and behavioral change. During the past decade, my efforts have been focused on spatial memory in rats and bees. My students and I have studied rats in several laboratory procedures, including the radial-arm maze. We are interested in determining the nature of the representations and decision processes used in spatial tasks. Our bee research centers on working memory for spatial locations in honeybees and bumblebees. This work has been supported by grants from the National Institute of Mental Health and the National Science Foundation.
Current Projects:
The projects in which we are most actively engaged are:
Spatial Pattern Learning - In these experiments, rats search for small amounts of food in hidden locations. There are no perceptual cues corresponding to the location of the food goals, however the goals are always in a particular spatial arrangement with respect to each other. Our work shows that rats learn these spatial patterns among hidden goal locations, and we are interested in the details of the spatial representations that form as a result of this learning. This project has been supported by the Animal Behavior Program of the National Science Foundation. (Award NSF-9982244). A recent addition to this line of research involves looking at some of the same spatial pattern learning mechanisms in humans.
Social Cognition - Pairs of rats make choices among the same spatial locations. We have found evidence that the spatial choices of one rat are coded in working memory by the other rat and that these social working memories either increase or decrease the tendency to choose spatial locations.
Spatial Working Memory in Bumblebees - We are currently investigating spatial choices of bumble bees in a simulated patch of flowers. Our earlier work with honey bees showed that they use spatial working memory to avoid revisits to locations recently depleted of food. We are using the same analytic and experimental tools to investigate the possibility of working memory for spatial locations in bumble bees.
研究兴趣
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Environment, Space, Placeno. 1 (2022): 130-133
Michael F Brown, Bridget P Austin
ISAL Conference on Artificial Life (ALIFE) (2021)
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