Sensitization and habituation of the swimming behavior in ascidian larvae to light
|Title||Sensitization and habituation of the swimming behavior in ascidian larvae to light|
|Publication Type||Journal Article|
|Year of Publication||2003|
|Authors||Tsuda, M., Kawakami I., & Shiraishi S.|
Ascidian larvae of Ciona intestinalis change their photic behavior during the course of development. Newly hatched larvae show no response to a light stimulus at any intensity. At 4 hr after hatching, larvae were induced to start to swimming upon the cessation of illumination, and to stop swimming upon the onset of illumination. At a weaker light intensity (5.0x10(-3) J/m(2).S), the larvae showed similar responses to either a single stimulus or repeated stimuli of onset and cessation of light until 10 hr after hatching. At a stronger light intensity (3.2x10(-1) J/m(2).s), when the stimulus was repeated, they showed sensitization and habituation of the swimming response.