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The influence of dopamine on personality in the Mediterranean field cricket (Gryllus bimaculatus)
Linköping University, Department of Physics, Chemistry and Biology, Biology.
2017 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

For some behavior there are consistent differences between individuals within a population, which is called animal personality. Across species, ranging from insects to mammals, personality has been described along behavioral gradients like activity, exploration, boldness and aggression. Monoamines such as dopamine have been shown to be essential for modulating animal behavior and could therefore be important also in explaining variation in animal personality. Supporting this, the dopaminergic system affect activity (in Confused flour beetles), and aggression (in Mediterranean field crickets). However, the causality and effect of dopamine on these behaviors, and also other behavioral traits used to describe personality is currently less explored. This study experimentally investigated how increased level of dopamine affects activity, boldness, exploration and aggression in Mediterranean field crickets (Gryllus bimaculatus). I show that dopamine manipulation had no effects on measured behavior. These results indicate that increased dopamine levels do not affect the scored personality traits in Mediterranean field crickets. The causality and generality of the relationship between dopamine and behavior used to score variation in personality is thus not clear in this species.

Place, publisher, year, edition, pages
2017. , 15 p.
Keyword [en]
Behavior, Cricket, Dopamine, Gryllus, Personality, Ropinirole
National Category
Behavioral Sciences Biology
Identifiers
URN: urn:nbn:se:liu:diva-138140ISRN: LITH-IFM-G-EX--17/3379--SEOAI: oai:DiVA.org:liu-138140DiVA: diva2:1107766
Subject / course
Biology
Supervisors
Examiners
Available from: 2017-06-12 Created: 2017-06-10 Last updated: 2017-06-12Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf