Quantity discrimination by zebrafish (Danio rerio).

@article{Potrich2015QuantityDB,
  title={Quantity discrimination by zebrafish (Danio rerio).},
  author={Davide Potrich and Valeria Anna Sovrano and Gionata Stancher and Giorgio Vallortigara},
  journal={Journal of comparative psychology},
  year={2015},
  volume={129 4},
  pages={
          388-93
        }
}
Discrimination of quantity (magnitude) was investigated in zebrafish (Danio rerio). Male zebrafish chose to approach the location previously occupied by the larger in number between 2 groups of female conspecifics (no longer visible at test) in sets of 1 versus 2 items, and 2 versus 3 items, but failed at 3 versus 4 items; similarly, when tested with larger numbers, zebrafish succeeded with 2 versus 4, 4 versus 6, and 4 versus 8 items, but failed with 6 versus 8 items. The results suggest that… 

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References

SHOWING 1-10 OF 44 REFERENCES

Ordinal representation of numeric quantities by brown capuchin monkeys (Cebus apella).

Brown capuchins demonstrated an ordinal representation of quantity equivalent to that shown in Old World monkeys, suggesting the use of similar psychological processes in the monkeys.

From small to large: numerical discrimination by young domestic chicks (Gallus gallus).

It is demonstrated that newborn chicks are able to distinguish between some numerical comparisons, such as 2 vs. 2, 1 vs. 3, and 4 vs. 8, which support the hypothesis that a single system processes both small and large numerosities.

Spontaneous number representation in semi–free–ranging rhesus monkeys

The range of success achieved by rhesus monkeys in this spontaneous–number task matches the range achieved by human infants and corresponds to the range encoded in the syntax of natural languages.

Discrimination of small numerosities in young chicks.

Chicks were trained to discriminate small sets of identical elements, and tested for choices (unrewarded) between sets of similar numerosities, when continuous physical variables such as spatial distribution, contour length, and overall surface were equalized, finding chicks seemed unable to discriminate on the basis of number.

Numerical Abstraction in Young Domestic Chicks (Gallus gallus)

The findings emerging from the study support the hypothesis that numbers are salient information promptly processed even by very young animals.

Imprinted numbers: newborn chicks' sensitivity to number vs. continuous extent of objects they have been reared with.

It is found that identification of objects as different and separate individuals is crucial for the computation of number rather than continuous extent in numerical representation of small numerosities and provide a striking parallel with results obtained in human infants.

Enumeration of briefly presented items by the chimpanzee (Pan troglodytes) and humans (Homo sapiens)

Detailed analyses of the pattern of response times for the chimpanzee and of looking-back behavior during the task suggests that the enumeration process underlying the subject’s performance was not counting but estimation.

Summation of Large Numerousness by Newborn Chicks

This study suggests that continuous variables are computed by chicks for sets of objects that are not present at the same time and that are no longer visible at the time of choice.

Evidence for counting in insects

It is found that bees can count up to four objects, when they are encountered sequentially during flight, and trained in this way are able count novel objects, which they have never previously encountered, thus demonstrating that they are capable of object-independent counting.

Rhesus monkeys (Macaca mulatta) succeed on a computerized test designed to assess conservation of discrete quantity

Rhesus monkeys (Macaca mulatta) were presented with a computerized quantity judgment task and responded on the basis of the quantity of items, and they were not distracted by non-quantitative manipulations of the sets.