Document Detail


Long-term memory of color stimuli in the jungle crow (Corvus macrorhynchos).
MedLine Citation:
PMID:  21792628     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Wild-caught jungle crows (n = 20) were trained to discriminate between color stimuli in a two-alternative discrimination task. Next, crows were tested for long-term memory after 1-, 2-, 3-, 6-, and 10-month retention intervals. This preliminary study showed that jungle crows learn the task and reach a discrimination criterion (80% or more correct choices in two consecutive sessions of ten trials) in a few trials, and some even in a single session. Most, if not all, crows successfully remembered the constantly reinforced visual stimulus during training after all retention intervals. These results suggest that jungle crows have a high retention capacity for learned information, at least after a 10-month retention interval and make no or very few errors. This study is the first to show long-term memory capacity of color stimuli in corvids following a brief training that memory rather than rehearsal was apparent. Memory of visual color information is vital for exploitation of biological resources in crows. We suspect that jungle crows could remember the learned color discrimination task even after a much longer retention interval.
Authors:
Bezawork Afework Bogale; Satoshi Sugawara; Katsuhisa Sakano; Sonoko Tsuda; Shoei Sugita
Related Documents :
22034198 - Cerebral aging: neuropsychological, neuroradiological, and neurometabolic correlates.
22187548 - Cognitive profile of elderly patients with mild stroke.
21600728 - Effect of acute ethanol and acute allopregnanolone on spatial memory in adolescent and ...
21823798 - Electrophysiological evidence for age effects on sensory memory processing of tonal pat...
23520128 - Measuring mild cognitive impairment in patients with parkinson's disease.
19022348 - Reducing false memories by magnetic pulse stimulation.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-7-27
Journal Detail:
Title:  Animal cognition     Volume:  -     ISSN:  1435-9456     ISO Abbreviation:  -     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-7-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9814573     Medline TA:  Anim Cogn     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
United Graduate School of Agricultural Science, Tokyo Graduate School of Agriculture and Technology, Tokyo, Japan.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Mismatch analysis of humeral nailing: antegrade versus retrograde insertion.
Next Document:  Open3DALIGN: an open-source software aimed at unsupervised ligand alignment.