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Unformatted text preview: Experiment
• Flies trained to associate an odor with a
mechanical shock (associative conditioning)
– 5 training sessions either:
1. Separated by 20-minute intervals
a spaced protocol
Requires protein synthesis
2. Followed one another immediately
a massed protocol
ARM Does NOT require protein synthesis Data Collection
• Assayed their desiccation and
starvation resistance, measured as
time until death in the absence of food
and water Results
The spaced protocol flies (LTM) died
on average 4 hours (19%) earlier than
flies trained with the massed protocol
(ARM). 11 3/6/2014 untreated - control
white - long term learning : cost to ﬂies to feel stressed
under experimental conditions. Mary F, Kawecki TJ. 2003. A cost of long-term memory in Drosophila. Science 308:1148 Conclusions energetic cost : to form metabolic memroies
that is harmful to their ability to cope stress Although LTM is more stable than
ARM, it comes with an energetic
cost. Costs to Learning There exists energy costs in
collecting, processing and storing
information 12 3/6/2014 condition - select individuals to learn?
-avoid places predators are located
• When is learning subjected to EBNS? -learning mimicry, bates, predators
-avoiding nectar with toxins 13...
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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.
- Spring '08