Related Experiment Video
Updated: Jun 16, 2026
10:23
Measuring In Vivo Changes in Extracellular Neurotransmitters During Naturally Rewarding Behaviors in Female Syrian Hamsters
Published on: September 12, 2017
Fluoxetine does not prevent interspecific mating between two hamster species.
Javier delBarco-Trillo1, Robert E Johnston
1Department of Psychology, Cornell University, Ithaca, NY 14853, USA. delbarcotrillo@gmail.com
Physiology & Behavior
|February 13, 2010
Summary
Fluoxetine did not alter Syrian hamster female receptivity to Turkish hamsters. Hamster sexual behavior was unaffected by the drug, suggesting serotonin does not influence mate choice discrimination.
Area of Science:
- Behavioral Endocrinology
- Neuropharmacology
- Comparative Psychology
Background:
- Laboratory-housed female Syrian hamsters (Mesocricetus auratus) readily mate with heterospecific Turkish hamsters (M. brandti).
- This suggests captivity may increase female receptivity and reduce discrimination against unfamiliar males.
Purpose of the Study:
- To investigate if reduced female receptivity impacts mate discrimination.
- To test if fluoxetine, a serotonin-enhancing drug, decreases female hamster receptivity and increases rejection of heterospecific males.
Main Methods:
- Estrous female Syrian hamsters were injected with fluoxetine (20mg/kg) or a vehicle control.
- Females were sequentially paired with both a conspecific (Syrian) and a heterospecific (Turkish) male.
- Behavioral responses, including lordosis latency and duration, were recorded.
Main Results:
- Fluoxetine treatment did not affect female hamster behavior towards conspecific or heterospecific males.
- All females exhibited lordosis towards both male types, with no observed aggression.
- Females showed slightly faster and longer lordosis with conspecific males, regardless of treatment.
Conclusions:
- Fluoxetine does not reduce female Syrian hamster receptivity to Turkish hamsters.
- Serotonin modulation via fluoxetine does not appear to influence mate discrimination in this hamster model.
- Female Syrian hamsters show a slight preference for conspecific males, irrespective of fluoxetine treatment.
Related Concept Videos
01:17Understanding Species and Reproductive Barriers
A species is a group of organisms that interbreed and produce fertile offspring. Typically, individuals of the same species appear similar and share common characteristics due to their highly similar genomes. However, not all organisms that look alike are members of the same species. Various mechanisms keep most species discrete. While some mechanisms prevent reproductive behavior and fertilization (pre-zygotic isolation), others prevent the production of fertile offspring after mating has...
01:24Testing a Claim about Population Proportion
A complete procedure for testing a claim about a population proportion is provided here.
There are two methods of testing a claim about a population proportion: (1) Using the sample proportion from the data where a binomial distribution is approximated to the normal distribution and (2) Using the binomial probabilities calculated from the data.
The first method uses normal distribution as an approximation to the binomial distribution. The requirements are as follows: sample size is large...
There are two methods of testing a claim about a population proportion: (1) Using the sample proportion from the data where a binomial distribution is approximated to the normal distribution and (2) Using the binomial probabilities calculated from the data.
The first method uses normal distribution as an approximation to the binomial distribution. The requirements are as follows: sample size is large...