Cookies Policy
X

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Developmental Changes in Responsiveness in the Great Tit (Parus Major)

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Behaviour

[Experiment I was carried out to test the hypothesis that the capacity to refrain from responding when reinforcement is withdrawn (behaviour dependent on internal inhibition) is weak in very young birds, develops as a result of age and also as a result of variety of experience during the juvenile stage and later weakens slightly. Two groups of birds were given the task of differentiating between a dish containing food and covered with a white lid and an empty dish covered with a black lid. All were wild birds, but Group I were taken as nestlings, reared by hand and kept indoors. Group II were taken as juveniles or as adults, tested indoors and then released. They were tested at ages ranging from 4½ weeks onwards. The results as they stand are consistent with the hypothesis stated, but some difficulties of interpretation are discussed. In Experiment II an attempt was made to measure changes in level of activity or positive responsiveness in a single brood of hand-reared great tits during a period of time comparable with Experiment I. In two experiments where (1) a previously reinforced and (2) a completely unfamiliar object was introduced into the birds' cages for a limited period of time, the length of time spent by birds pecking and pulling at this object appeared to increase until about 12-15 weeks after fledging, and later decreased again. In the discussion the relation between results from Experiments I and II are considered: it is suggested that changes observed in internal inhibition and positive responsiveness may in fact be changes in different aspects of excitability. This would suggest that excitability increases up to a certain age, and then falls off again., Experiment I was carried out to test the hypothesis that the capacity to refrain from responding when reinforcement is withdrawn (behaviour dependent on internal inhibition) is weak in very young birds, develops as a result of age and also as a result of variety of experience during the juvenile stage and later weakens slightly. Two groups of birds were given the task of differentiating between a dish containing food and covered with a white lid and an empty dish covered with a black lid. All were wild birds, but Group I were taken as nestlings, reared by hand and kept indoors. Group II were taken as juveniles or as adults, tested indoors and then released. They were tested at ages ranging from 4½ weeks onwards. The results as they stand are consistent with the hypothesis stated, but some difficulties of interpretation are discussed. In Experiment II an attempt was made to measure changes in level of activity or positive responsiveness in a single brood of hand-reared great tits during a period of time comparable with Experiment I. In two experiments where (1) a previously reinforced and (2) a completely unfamiliar object was introduced into the birds' cages for a limited period of time, the length of time spent by birds pecking and pulling at this object appeared to increase until about 12-15 weeks after fledging, and later decreased again. In the discussion the relation between results from Experiments I and II are considered: it is suggested that changes observed in internal inhibition and positive responsiveness may in fact be changes in different aspects of excitability. This would suggest that excitability increases up to a certain age, and then falls off again.]

Affiliations: 1: Cambridge Psychological Laboratory

10.1163/156853960X00241
/content/journals/10.1163/156853960x00241
dcterms_title,pub_keyword,dcterms_description,pub_author
6
3
Loading
Loading

Full text loading...

/content/journals/10.1163/156853960x00241
Loading

Data & Media loading...

http://brill.metastore.ingenta.com/content/journals/10.1163/156853960x00241
Loading

Article metrics loading...

/content/journals/10.1163/156853960x00241
1960-01-01
2016-12-09

Sign-in

Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
     
    Behaviour — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation