Navigation Links
Primates and patience -- the evolutionary roots of self control
Date:5/13/2014

ns, chimpanzees and bonobos at Harvard's Department of Psychology and at the Berlin and Leipzig zoos in Germany. In those experiments, individual animals chose between a tray containing two grapes that they could eat immediately and a tray containing six grapes they could eat after waiting. The wait times were gradually increased until the animal reached an "indifference point" when it opted for the smaller, immediate reward instead of waiting.

Stevens combined those results with those of scientists who performed similar experiments with other primates. He scoured primate-research literature to gather data on the biological characteristics of each species.

In addition to characteristics related to body mass, Stevens analyzed but found no correlation with two other hypotheses for patience: cognitive ability and social complexity.

"In humans, the ability to wait for delayed rewards correlates with higher performance in cognitive measures such as IQ, academic success, standardized test scores and working memory capacity," he wrote. "The cognitive ability hypothesis predicts that species with higher levels of cognition should wait longer than those with lower levels."

But Stevens found no correlation between patience levels and an animal's relative brain size compared to its body size, the measure he used to quantify cognitive ability.

Researchers also have argued that animals in complex social groups have reduced impulsivity and more patience to adapt to the social hierarchies of dominance and submission. But Stevens did not find correlations between species' social group sizes and their patience levels.

Stevens said he believes metabolic rates may be the driving factor connecting patience with body mass and related physical characteristics. Smaller animals tend to have higher metabolic rates.

"You need fuel and you need it at a
'/>"/>

Contact: Jeffrey R. Stevens
jstevens5@unl.edu
402-472-1840
University of Nebraska-Lincoln
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Good news for nanomedicine: Quantum dots appear safe in pioneering study on primates
2. Manipulation of a specific neural circuit buried in complicated brain networks in primates
3. Out of the mouths of primates, facial mechanics of human speech may have evolved
4. Transgenic technique to eliminate a specific neural circuit of the brain in primates
5. The old primates club: Even male monkeys ride their fathers coattails to success
6. Primates brains make visual maps using triangular grids
7. UTSA anthropologist honored for contributions researching primates in Africa
8. Primates too can move in unison
9. Snakes on the brain: Are primates hard-wired to see snakes?
10. CU-Boulder-led team finds first evidence of primates regularly sleeping in caves
11. Leading evolutionary scientist to discuss how genome of bacteria has evolved
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Primates and patience -- the evolutionary roots of self control
(Date:9/18/2014)... Worcester, Mass. A novel robotic system that can ... currently being tested as part of a biomedical research ... with the aim of determining if the robot, in ... biopsies faster, more accurate, less costly, and less discomforting ... potential to deliver prostate cancer therapies with greater precision. ...
(Date:9/18/2014)... to acquire and creatively manipulate spoken language is unique ... past 6 million years of human evolution to make ... best candidate gene we now have," says Wolfgang Enard, ... his efforts to understand the molecular biological basis of ... The results of his latest study, undertaken in collaboration ...
(Date:9/18/2014)... seem to be cheerful, happy-go-lucky characters, so you might ... life. , In fact some dogs are distinctly ... Sydney shows. , "This research is exciting because ... objectively and non-invasively. It offers researchers and dog owners ... that changes," said Dr Melissa Starling, from the Faculty ...
Breaking Biology News(10 mins):Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 2Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 3Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 4Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 5Language evolution: Quicker on the uptake 2Language evolution: Quicker on the uptake 3Dogs can be pessimists too 2Dogs can be pessimists too 3
... in French . , Montreal, December ... from a blueprint, Stephen Michnick is helping the scientific ... Universit de Montral biochemistry professor and Canada Research Chair ... that have enabled him to examine how proteins interact ...
... 16, 2008) Researchers from Virginia Commonwealth University have identified ... and suppress a key protein that is overexpressed in 90 ... to an effective gene therapy for cancer. According ... the Department of Human and Molecular Genetics and director of ...
... European Society of Oncological Urology (ESOU) will be ... January 2009, with organisers presenting the latest updates ... the fast-changing developments in onco-urological treatment strategies, the ... and researchers the opportunity to explore the various ...
Cached Biology News:Call Stephen Michnick a gene grammarian 2Researchers identify new anti-tumor gene 26th ESOU Meeting 2
(Date:9/18/2014)... Ireland , September 18, 2014 ... and Markets ( http://www.researchandmarkets.com/research/czvg3s/biocompatible ) has ... "Biocompatible Materials - Global Strategic Business ... ,     (Logo: http://photos.prnewswire.com/prnh/20130307/600769) ,This report analyzes ... in US$ Million by the following ...
(Date:9/18/2014)... Research and Markets has announced ... Report 2014" report to their offering. ... a professional and in-depth study on the current state ... report provides a basic overview of the industry including ... albumin market analysis is provided for the international markets ...
(Date:9/18/2014)... 18, 2014  Neogen Corporation (Nasdaq: NEOG ... strategic agreement with Merck Animal Health to market Neogen,s ... The Igenity Dairy Heifer Program consists of genomic tests ... genetic potential of replacement dairy heifers. The genomic tests ... and is an excellent tool in the decision-making process ...
(Date:9/18/2014)... MA (PRWEB) September 18, 2014 ... Molecule Sequencing (tSMS™) technology, announced today the closing ... of investment, led by Genomic Diagnostic Technologies, will ... and diagnostic applications. , Founded in March 2013 ... and Bioinformatics Analyst at Helicos BioSciences, SeqLL has ...
Breaking Biology Technology:Biocompatible Materials - Global Strategic Business Report 2014 2Biocompatible Materials - Global Strategic Business Report 2014 3Global Human Albumin Industry Report 2014 2Global Human Albumin Industry Report 2014 3Merck Animal Health to market Neogen's dairy genomic program 2SeqLL Closes Series-A Funding Round for Expansion of Single Molecule Sequencing 2
... Stereotaxis, Inc. (Nasdaq:, STXS ) announced today ... quarter and full year ended December 31, 2008, on ... will host a conference call and,webcast on Thursday, February ... Company,s fourth quarter results and current corporate developments. The,dial-in ...
... Pharmaceuticals, Inc., a privately held drug development company, ... New Drug (IND) application with the U.S. Food ... anticancer compound. GGTI-2418 is a synthetic peptidomimetic ... to induce apoptosis by downregulating several pivotal oncogenic ...
... Ltd. (Nasdaq: XTLB , TASE: XTL) today ... a letter from a shareholder who,owns more than 5% ... an extraordinary shareholders, meeting (EGM) of the Company as,soon ... , 1. that Boaz Shweiger ...
Cached Biology Technology:Stereotaxis Announces Fourth Quarter and Full Year 2008 Earnings Release Date and Conference Call 2Tigris Pharmaceuticals Files IND Application for GGTI-2418 2Tigris Pharmaceuticals Files IND Application for GGTI-2418 3Corrected: XTL Biopharmaceuticals to Convene Extraordinary Shareholders' Meetings after Receipt of Shareholder Letter 2
... The BioGenex VISION Sytem is a ... comes with proprietary digital imaging and ... digital image acquisition, analysis, archving/retrieval and ... a state-of-the-art digital imaging system that ...
... -mr agarose is specifically for ... endoosmosis, and is recommended for ... weight proteins or complexes that ... of molecular sieving in polyacrylamide ...
... agarose is used for second-dimension SDS-PAGE ... in place in PROTEAN Plus cells. ... to allow monitoring of electrophoresis runs. ... agarose in 1x Tris, glycine, SDS, ...
The Trans-Blot Plus gel and cassette assembly tray is used to hold the Trans-Blot Plus gel holder cassette, buffer, and other materials for the gel and membrane sandwich during their assembly....
Biology Products: