Effect of Forebrain Ablation on Long-Term Retention of an Appetitive Discrimination by Goldfish

Flood, Nancy Bohac

doi:10.2466/pr0.1975.36.3.783

Cited by 12 publications

(4 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The previously mentioned brain lesion studies on fishes suggest that not only various aspects of learning [45 -49] but also processes of memory formation take place in the cerebellum and/or the telencephalon region of the fish brain ( [45,61] but see [62,63]). Therefore, we speculate that size differences in the cerebellum and telencephalon may be underlying the increased performance of large-brained female guppies in the reversal-learning test.…”

Section: Discussionmentioning

confidence: 99%

Brain size affects performance in a reversal-learning test

et al. 2018

View full text Add to dashboard Cite

It has become increasingly clear that a larger brain can confer cognitive benefits. Yet not all of the numerous aspects of cognition seem to be affected by brain size. Recent evidence suggests that some more basic forms of cognition, for instance colour vision, are not influenced by brain size. We therefore hypothesize that a larger brain is especially beneficial for distinct and gradually more complex aspects of cognition. To test this hypothesis, we assessed the performance of brain size selected female guppies () in two distinct aspects of cognition that differ in cognitive complexity. In a standard reversal-learning test we first investigated basic learning ability with a colour discrimination test, then reversed the reward contingency to specifically test for cognitive flexibility. We found that large-brained females outperformed small-brained females in the reversed-learning part of the test but not in the colour discrimination part of the test. Large-brained individuals are hence cognitively more flexible, which probably yields fitness benefits, as they may adapt more quickly to social and/or ecological cognitive challenges. Our results also suggest that a larger brain becomes especially advantageous with increasing cognitive complexity. These findings corroborate the significance of brain size for cognitive evolution.

show abstract

Section: Discussionmentioning

confidence: 99%

Brain size affects performance in a reversal-learning test

et al. 2018

View full text Add to dashboard Cite

show abstract

“…This does not indicate that there is no telencephalic activity that gives rise to visual awareness, since in these species, there is no retino-thalamotelencephalic projection and all visual input to the telencephalon is relayed from the OT (Ebbesson, 1980). Unlike amphibians, teleosts are capable of discriminating abstract visual patterns (Bowman & Sutherland, 1969;Yolen & Hodos, 1976) and presumably this function is mediated by telencephalic visual structures, although there is a report in which the ability to discriminate squares from circles survives the ablation of the telencephalon (Flood, 1975).…”

Section: Fishesmentioning

confidence: 94%

Visual Awareness Due to Neuronal Activities in Subcortical Structures: A Proposal

Sewards

2000

Consciousness and Cognition

View full text Add to dashboard Cite

“…Ablations of brain regions followed by behavioral observations show that telencephalic and diencephalic lesions alter learning and memory (Kaplan & Aronson 1967, Flood 1975, Flood et al 1976, Farr & Savage 1978, Lancet 1986, Overmeir & Patten 1982. If imprinting is simply an exaggerated form of normal learning, its circuits may reside in these forebrain regions (Herrick 1922, Abraham et al 1972, Ito 1973.…”

Section: Discussionmentioning

confidence: 99%

Development of the olfactory system of the white sucker,Catostomus commersoni, in relation to imprinting and homing: a comparison to the salmonid model

Werner

Lannoo

1994

Environ Biol Fish

View full text Add to dashboard Cite

SynopsisWhite suckers, Catostornus commersoni, use olfactory cues to return to the same spawning stream year after year. If we assume that they follow a model similar to the well-known salmon model, olfactory imprinting must occur very early in their development. We describe the time of migration from the nursery stream in relation to the development of the white sucker olfactory system to determine if the requisite anatomical structures are present which would permit imprinting. At hatching the olfactory placode is present and beginning to differentiate, the lumen of the olfactory capsule is starting to form, and the olfactory tract projects into the telencephalon. Larvae migrate approximately 2 weeks later or at a size of 14 mm TL. At this time olfactory cilia are present, the olfactory tract is robust and the telencephalon is beginning to differentiate. Therefore, it appears that the fundamental neural structures necessary for imprinting are present. A comparison with salmon, however, clearly demonstrates that the white sucker olfactory apparatus is not as well developed as that of salmon at time of migration. This raises the question of the ability of white suckers to imprint in the same manner as salmon and whether the salmonid model is applicable to white suckers. Alternative imprinting hypotheses are discussed.

show abstract

Effect of Forebrain Ablation on Long-Term Retention of an Appetitive Discrimination by Goldfish

Cited by 12 publications

References 6 publications

Brain size affects performance in a reversal-learning test

Brain size affects performance in a reversal-learning test

Visual Awareness Due to Neuronal Activities in Subcortical Structures: A Proposal

Development of the olfactory system of the white sucker,Catostomus commersoni, in relation to imprinting and homing: a comparison to the salmonid model

Contact Info

Product

Resources

About