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Dohlen erlernen unbenannte Anzahlen

Formal Metadata

Title
Dohlen erlernen unbenannte Anzahlen
Alternative Title
Jackdaws Trained to Recognize Undenominated Numbers
Author
License
CC Attribution - NonCommercial - NoDerivatives 3.0 Germany:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
Identifiers
IWF SignatureB 467
Publisher
Release Date
Language
Producer
Production Year1939

Technical Metadata

IWF Technical DataFilm, 16 mm, 120 m ; SW, 14 1/2 min

Content Metadata

Subject Area
Genre
Abstract
German
German
Versuche mit dressierten Dohlen zu ihrer Fähigkeit, Anzahlen zu erfassen: Wahl einer Anzahl Körner auf farbliche Reize hin, Wahl der der Dressur entsprechenden Anzahl, Vergleich bestimmter Anzahlen und Öffnen der entsprechenden Schälchen (Größe und Muster der Punkte verschieden); Scheuchversuche. Aufgenommen mit 20 B/s; Vorführgeschw. 18 B/s.
English
English
Experiments with conditioned jackdaws on their ability to recognize certain numbers: choice of a number of grains following colour stimuli, comparison between different numbers and opening of the appropriate bowls. Chasing experiments. Recording speed 20 fps, projection speed 18 fps.
Keywords
German
German
English
English
IWF Classification
German
German
English
English