Die Gedächtnisleistungen der Vögel

Fischel, Werner

doi:10.1111/j.1439-0388.1936.tb00081.x

Cited by 4 publications

(3 citation statements)

References 14 publications

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“…Hiding the reward in a container is problematic for animals without object permanence (Heubel, 1939). Even if they have it they likely perform better if they see the reward directly (Fischel, 1936).…”

Section: Object Permanencementioning

confidence: 99%

“…Some animals lack an understanding of object permanence (see Table 2) and might use for example, olfactory cues to solve the task (Bierens de Haan, 1932; Heubel, 1939). Even for animals with an understanding of object permanence who have learned to associate a particular container with food, motivation appears to be higher when they can observe the food (Fischel, 1936; Medina, 2012).…”

Section: Common Cognitive Investigations With Different String Patternsmentioning

confidence: 99%

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The string-pulling paradigm in comparative psychology.

Jacobs¹,

Osvath²

2015

Journal of Comparative Psychology

102

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String pulling is one of the most widely used paradigms in comparative psychology. First documented 2 millennia ago, it has been a well-established scientific paradigm for a century. More than 160 bird and mammal species have been tested in over 200 studies with countless methodological variations. The paradigm can be used to address a wide variety of issues on animal cognition; for example, what animals understand about contact and connection as well as whether they rely on perceptual feedback, grasp the functionality of strings, generalize across conditions, apply their knowledge flexibly, and possess insight. Mammals are typically tested on a horizontal configuration, birds on a vertical one, making the studies difficult to compare; in particular, pulling a string vertically requires better coordination and attention. A species' performance on the paradigm is often influenced by its ecology, especially concerning whether limbs are used for foraging. Many other factors can be of importance and should be considered. The string-pulling paradigm is easy to administer, vary, and apply to investigate a wide array of cognitive abilities. Although it can be and has been used to compare species, divergent methods and unclear reporting have limited its comparative utility. With increasing research standards, the paradigm is expected to become an even more fundamental tool in comparative psychology.

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Section: Object Permanencementioning

confidence: 99%

Section: Common Cognitive Investigations With Different String Patternsmentioning

confidence: 99%

The string-pulling paradigm in comparative psychology.

Jacobs¹,

Osvath²

2015

Journal of Comparative Psychology

102

View full text Add to dashboard Cite

show abstract

“…One of the first studies to systematically investigate stringpulling in parrots was an experiment conducted with four naïve African grey parrots by Irene Pepperberg (2004), to whom this special issue is dedicated (see Fischel, 1936;Funk, 2002;Rensch & Dücker, 1977, for other early studies). In her study, Pepperberg (2004) found that while language-naïve individuals would spontaneously perform the steps necessary for coordinated pulling, two language-trained grey parrots vocally requested the reward from the human experimenter, which was suggested as possibly representing a form of understanding of certain task properties.…”

mentioning

confidence: 99%

String-pulling in the Goffin’s cockatoo (Cacatua goffiniana)

Wakonig

O’Hara

2021

Learn Behav

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Goffin’s cockatoos, a parrot species endemic to the Tanimbar Islands in Indonesia, demonstrate remarkable cognitive skills across various technical tasks. These neophilic extractive foragers explore objects with their beak and feet, and are skilled in several modes of tool use. In this study, we confronted the animals for the first time with a vertical string-pulling setup, including a set of classic and novel controls. Nine of the 12 subjects, two of which were subadults, immediately interacted with the single-string task, with seven individuals successfully obtaining the reward on their very first attempt. Four different double string discrimination tests with varying spatial relations were used to assess the Goffin’s cockatoos’ apprehension of basic physical task properties. We found significant differences in performance between the respective experimental conditions, as well as the development of side biases. The results suggest that while the birds seem to consider simple cause–effect relationships, there is no evidence for a mental representation of the causal mechanisms underlying the string-pulling tasks, as subjects failed the crossed strings condition out of immediate sight. Finally, we provide suggestions on improving the methodology, and discuss our findings in regard to the Goffin’s cockatoo’s ecology.

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Ged�chtnis und Denken bei Tieren und Menschen

Fischel

1939

Naturwissenschaften

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Die Gedächtnisleistungen der Vögel

Cited by 4 publications

References 14 publications

The string-pulling paradigm in comparative psychology.

The string-pulling paradigm in comparative psychology.

String-pulling in the Goffin’s cockatoo (Cacatua goffiniana)

Ged�chtnis und Denken bei Tieren und Menschen

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