Provides a protocol for examining the mechanisms of animal thermoregulation in a straightforward but more sophisticated manner than using a thermal gradient. Describes a methodology for conducting operant conditioning to examine thermal set points for ectothermic animals. Contains 20 references. (WRM)

Previous experiments have shown that unsignaled delayed reinforcement decreases response rates and resistance to change. However, the effects of different delays to reinforcement on underlying response structure have not been investigated in conjunction with tests of resistance to change. In the present experiment, pigeons responded on a…

Conducting observational investigations of behaviors and processes is an important method for generating scientific knowledge. This article describes a methodology for assisting students in the processes of observational inquiry and theory articulation and its instantiation in a set of digital video tools. We describe a high school biology…

In this interrupted case study, based on a journal article on the parenting behavior of American coots, students are given information and data from which they must develop hypotheses and design experiments, mimicking the way that scientists conduct research. The case is appropriate for courses in biology, especially those focusing on evolution…

The cAMP/PKA pathway plays a critical role in learning and memory systems in animals ranging from mice to "Drosophila" to "Aplysia." Studies of olfactory learning in "Drosophila" suggest that altered expression of either positive or negative regulators of the cAMP/PKA signaling pathway beyond a certain optimum range may be deleterious. Here we…

The return to drug seeking, even after prolonged periods of abstinence, is a defining feature of cocaine addiction. The neural circuitry underlying relapse has been identified in neuropharmacological studies of experimental animals, typically rats, and supported in brain imaging studies of human addicts. Although the nucleus accumbens (NAcc),…

Neuroscientific approaches to drug addiction traditionally have been based on the premise that addiction is a process that results from brain changes that in turn result from chronic administration of drugs of abuse. An alternative approach views drug addiction as a behavioral disorder in which drugs function as preeminent reinforcers. Although…

It is well documented that people are less interested in studying plants than animals. We tested whether university students would selectively recall more animal images than plant images even when equally-nameable plant and animal images were presented for equal lengths of time. Animal and plant images were pre-tested and 14 animal-plant pairs…

This study examined the use of form and function analogy object boxes to teach second graders (n = 21) animal adaptations. The study used a pretest-posttest design to examine animal adaptation content learned through focused analogy activities as compared with reading and Internet searches for information about adaptations of animals followed by…

Adult learning and memory functions are strongly dependent on neonatal experiences. We recently showed that neonatal odor-shock learning attenuates later life odor fear conditioning and amygdala activity. In the present work we investigated whether changes observed in adults can also be observed in other structures normally involved, namely…

The New 7 Wonders of the World organization announced a shiny new list of the world's premier candidates. The people behind "Exceptional Parent" (EP) magazine were intrigued and inspired by the New 7 Wonders undertaking, and it started them thinking. If they had to name the 7 Wonders of the World of Disabilities, what or who would they…

Translating written curricular materials into rich, complex, learning environments is an undertheorized area in science education. This study examines two critical cases of teachers enacting a technology-rich curriculum focused on the development of complex reasoning around biodiversity for fifth graders. Two elements emerged that significantly…

Despite its importance as a central goal in environmental education, there appears to be little consensus about how best to document, assess and evaluate understanding of environmental concepts. This illustrative case study describes and demonstrates the use of the concept mapping strategy as an effective tool for assessing environmental…

In the project presented in this article, high school students create and observe miniecosystems in an ecology unit designed around a 5E (engagement, exploration, explanation, elaboration, and evaluation) instructional model. Students choose a wide variety of organisms and use creativity to design miniecosystems. (Contains 1 table and 3 figures.)

Delivery and formatting techniques for technical materials have traditionally been determined by common sense, not cognitive theory. In fact, for hundreds of years, verbal messages in the form of lecture and print have been the primary method of disseminating information to the learner. To move beyond verbal messages and toward the assimilation of…