Costs and benefits benefits to learning costs to

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ors, colors, and visual patterns associated with either positive or negative outcomes. Costs and Benefits Benefits to learning? Costs to learning? Schistocerca americana Grasshoppers 7 3/6/2014 Benefits to Learning: Experimental Example Dukas R, Bernays EA. 2000. Learning improves growth rate in grasshoppers. Proc. Natl. Acad. Sci. USA 97:2637-40 Newly molted 6th-instar nymphs from a lab colony of S. americana grasshoppers Benefits to Learning: Experimental Example 2 experimental groups: 1. Learning group • Learned to associate food qualities with various cues by repeated exposure 2. Random group • Prevented from obtaining long-term association between food quality and cues Benefits to Learning: Experimental Example Learning group Predictable environment – Balanced food on one side with one color and flavor – Deficient food on other side with a different color and flavor Random group environment Unpredictable – The location, color and flavor of the balanced and deficient food were changed randomly, preventing associative learning 8 3/6/2014 Benefits to Learning: The Experiment Each cage contained 2 food dishes: – Balanced diet – Deficient diet carbohydrates protein and carbohydrates protein but no Feeding on a carbohydrate-deficient diet is associated with lower growth rates Benefits to Learning: Experimental Results Benefits to Learning: Experimental Conclusions • The Learning grassh...
View Full Document

This note was uploaded on 03/24/2014 for the course BIS 101 taught by Professor Simonchan during the Spring '08 term at UC Davis.

Ask a homework question - tutors are online