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Effects Of Contextual Information On Behavior Of Calidris Sandpipers Following Alarm Calls, Daniel W. Leger, Jami L. Nelson

Department of Psychology: Faculty Publications

Two classes of individuals-signalers and recipients -xist in all animal communication systems (Wilson 1975, Smith 1977). Signals make information available and recipients use this information when "choosing" a response (e.g., Leger and Owings 1978; Seyfarth et al. 1980a, b). Contextual information, which exists outside signals, is also usually available to recipients and may be appraised by them when selecting a response (Smith 1965, 1977). Consequently, to fully understand the responses of recipients we must identify contextual information in addition to signal-conveyed information.

Vertebrate "alarm" signals (signals emitted in the presence of potential predators) may be multi-functional and appear to vary …

Personal Computers And Behavioral Observation: An Introduction, John H. Flowers, Daniel W. Leger

Department of Psychology: Faculty Publications

Some fundamental aspects of observational data are outlined, and some basic issues in implementation of small computers in observational research are discussed.

Some Simple Apple Ii Software For The Collection And Analysis Of Observational Data, John H. Flowers

Department of Psychology: Faculty Publications

Two general-purpose software packages for collecting and analyzing observational data from a variety of settings are discussed. One package is designed for coding mutually exclusive behavioral states using the Apple’s keyboard as an input device. The other is designed to monitor temporally overlapping behaviors, and it makes use of the Apple II’s built-in game-control button inputs to indicate up to three behavioral states that may occur simultaneously.

The Effect Of Flanking Context On Visual Classification: The Joint Contribution Of Interactions At Different Processing Levels, John H. Flowers, Noreen Wilcox

Department of Psychology: Faculty Publications

Flanking characters that surround a target character may cause either facilitation of or interference with target classification, depending on experimental context. In three different experiments, the patterns of facilitative priming and interference were shown to change systematically as a function of onset asynchrony between flankers and target, illustrating differing time courses of the overlapping processes that each contributes to overall reaction time performance.