Experiments on "Learning" in Paramecia

Jensen, Donald D.

doi:10.1126/science.125.3240.191

Cited by 36 publications

(12 citation statements)

References 2 publications

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“…Other relatively recent experiments that have dealt with this issue are those of Gelber (1952Gelber ( , 1956Gelber ( , 1957Gelber ( , 1958Gelber ( , 1962aGelber ( , 1962b, Jensen (1957aJensen ( , 1957b, and Katz and Deterline (1958). Gelber reported successful conditioned approach behavior to a sterile platinum wire inserted into a reservoir containing paramecia after the paramecia had received training with the wire coated with food (bacteria).…”

mentioning

confidence: 99%

Discrimination Learning in Paramecia (P. caudatum)

2006

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confidence: 99%

Discrimination Learning in Paramecia (P. caudatum)

2006

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“…These observations were controversial, because it was objected that lowering the baited wire introduces bacteria in the fluid, to which paramecia are then attracted even when the wire is removed or cleaned ( Jensen, 1957 ). In support of this interpretation, Katz and Deterline (1958) replicated Gelber’s main findings but found that stirring before the final test destroyed the observed behavior.…”

Section: The Life Of Parameciummentioning

confidence: 99%

Integrative Neuroscience ofParamecium, a “Swimming Neuron”

Brette

2021

eNeuro

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Paramecium is a unicellular organism that swims in fresh water by beating thousands of cilia. When it is stimulated (mechanically, chemically, optically, thermally…), it often swims backward then turns and swims forward again. This “avoiding reaction” is triggered by a calcium-based action potential. For this reason, some authors have called Paramecium a “swimming neuron.” This review summarizes current knowledge about the physiological basis of behavior of Paramecium .

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“…; French ; Gelber ; Hennessey et al. ; Jensen ; Mingee ; Mirsky and Katz ). Moreover, associative learning, via classical conditioning, has been suggested to take place in human macrophages in vitro (i.e.…”

Section: Can Protists Learn Phenotypic Cues To Discriminate Kin?mentioning

confidence: 99%

Kin Discrimination in Protists: From Many Cells to Single Cells and Backwards

Paz-y-Miño-C

Espinosa

2016

J Eukaryotic Microbiology

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During four decades (1960s to 1990s), the conceptualization and experimental design of studies in kin recognition relied on work with multicellular eukaryotes, particularly Unikonta (including invertebrates and vertebrates) and some Bikonta (including plants). This pioneering research had an animal behavior approach. During the 2000s, work on taxa-, clone- and kin-discrimination and recognition in protists produced genetic and molecular evidence that unicellular organisms (e.g. Saccharomyces, Dictyostelium, Polysphondylium, Tetrahymena, Entamoeba and Plasmodium) could distinguish between same (self or clone) and different (diverse clones), as well as among conspecifics of close or distant genetic relatedness. Here we discuss some of the research on the genetics of kin discrimination/recognition and highlight the scientific progress made by switching emphasis from investigating multicellular to unicellular systems (and backwards). We document how studies with protists are helping us to understand the microscopic, cellular origins and evolution of the mechanisms of kin discrimination/recognition and their significance for the advent of multicellularity. We emphasize that because protists are among the most ancient organisms on Earth, belong to multiple taxonomic groups and occupy all environments, they can be central to reexamining traditional hypotheses in the field of kin recognition, reformulating concepts, and generating new knowledge.

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Experiments on "Learning" in Paramecia

Cited by 36 publications

References 2 publications

Discrimination Learning in Paramecia (P. caudatum)

Discrimination Learning in Paramecia (P. caudatum)

Integrative Neuroscience ofParamecium, a “Swimming Neuron”

Kin Discrimination in Protists: From Many Cells to Single Cells and Backwards

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