Habituation versus sensory adaptation as the cause of reduced attraction following pulsed and constant sex pheromone pre-exposure in Trichoplusia ni

L. P.S. Kuenen, Thomas Charles Baker

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48 Citations (Scopus)

Abstract

Trichoplusia ni males receiving a pulsed regime of sex pheromone pre-exposure later, in a wind tunnel, exhibited reduced upwind flight and close approach to a sex pheromone source compared to males receiving continuous pre-exposure. Electroantennogram (EAG) amplitudes from either pulsed or continuously pre-exposed males were significantly reduced from controls only during exposure. EAG amplitudes returned within one minute after exposure to levels not significantly different from controls, indicating that habituation, not sensory adaptation was probably the cause of reduced flights under the pulsed regime. Additionally, activity levels of males during each pulsed pre-exposure remained high compared to constant or no pre-exposure males, implying that pulsing was better at achieving central nervous system habituation because it avoided adapting the receptors.

Original languageEnglish (US)
Pages (from-to)721-726
Number of pages6
JournalJournal of Insect Physiology
Volume27
Issue number10
DOIs
StatePublished - Jan 1 1981

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Sex Attractants
Trichoplusia ni
sex pheromones
electroantennography
flight
wind tunnels
central nervous system
Central Nervous System
receptors

All Science Journal Classification (ASJC) codes

  • Physiology
  • Insect Science

Cite this

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abstract = "Trichoplusia ni males receiving a pulsed regime of sex pheromone pre-exposure later, in a wind tunnel, exhibited reduced upwind flight and close approach to a sex pheromone source compared to males receiving continuous pre-exposure. Electroantennogram (EAG) amplitudes from either pulsed or continuously pre-exposed males were significantly reduced from controls only during exposure. EAG amplitudes returned within one minute after exposure to levels not significantly different from controls, indicating that habituation, not sensory adaptation was probably the cause of reduced flights under the pulsed regime. Additionally, activity levels of males during each pulsed pre-exposure remained high compared to constant or no pre-exposure males, implying that pulsing was better at achieving central nervous system habituation because it avoided adapting the receptors.",
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AU - Baker, Thomas Charles

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N2 - Trichoplusia ni males receiving a pulsed regime of sex pheromone pre-exposure later, in a wind tunnel, exhibited reduced upwind flight and close approach to a sex pheromone source compared to males receiving continuous pre-exposure. Electroantennogram (EAG) amplitudes from either pulsed or continuously pre-exposed males were significantly reduced from controls only during exposure. EAG amplitudes returned within one minute after exposure to levels not significantly different from controls, indicating that habituation, not sensory adaptation was probably the cause of reduced flights under the pulsed regime. Additionally, activity levels of males during each pulsed pre-exposure remained high compared to constant or no pre-exposure males, implying that pulsing was better at achieving central nervous system habituation because it avoided adapting the receptors.

AB - Trichoplusia ni males receiving a pulsed regime of sex pheromone pre-exposure later, in a wind tunnel, exhibited reduced upwind flight and close approach to a sex pheromone source compared to males receiving continuous pre-exposure. Electroantennogram (EAG) amplitudes from either pulsed or continuously pre-exposed males were significantly reduced from controls only during exposure. EAG amplitudes returned within one minute after exposure to levels not significantly different from controls, indicating that habituation, not sensory adaptation was probably the cause of reduced flights under the pulsed regime. Additionally, activity levels of males during each pulsed pre-exposure remained high compared to constant or no pre-exposure males, implying that pulsing was better at achieving central nervous system habituation because it avoided adapting the receptors.

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