Navigation Links
Fish may actually feel pain and react to it much like humans
Date:4/30/2009

WEST LAFAYETTE, Ind. - Fish don't make noises or contort their faces to show that it hurts when hooks are pulled from their mouths, but a Purdue University researcher believes they feel that pain all the same.

Joseph Garner, an assistant professor of animal sciences, helped develop a test that found goldfish do feel pain, and their reactions to it are much like that of humans. A paper detailing the finding was published in the early online version of the journal Applied Animal Behaviour Science.

"There has been an effort by some to argue that a fish's response to a noxious stimuli is merely a reflexive action, but that it didn't really feel pain," Garner said. "We wanted to see if fish responded to potentially painful stimuli in a reflexive way or a more clever way."

Garner and Janicke Nordgreen, a doctoral student in the Norwegian School of Veterinary Science, attached small foil heaters to the goldfish and slowly increased the temperature. The heaters were designed with sensors and safeguards that shut off the heaters to prevent any physical damage to a fish's tissue.

Half of the fish were injected with morphine, and the others received saline. The researchers believed that those with the morphine would be able to withstand higher temperatures before reacting if they actually felt the pain. However, both groups of fish showed a response at about the same temperature.

Because both groups of fish wriggled at about the same temperature, the researchers thought the responses might be more like a reflex than a cognitive reaction to experiencing pain. The reflexive response is similar to a person involuntarily moving a hand off a hot stove with which they had come into contact. The reaction happens before a person actually experiences pain or understands that they have been hurt.

Upon later observation in their home tanks, however, the researchers noticed that the fish from each group were exhibiting
'/>"/>

Contact: Brian Wallheimer
bwallhei@purdue.edu
765-496-2050
Purdue University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Get smart about what you eat and you might actually improve your intelligence
2. Surprise -- cholesterol may actually pose benefits, study shows
3. Researchers observe evolution chain reaction
4. Researchers first to see reactive oxygen species in vital enzyme
5. Researchers create new class of fluorescent dyes to detect reactive oxygen species in vivo
6. Pitt, NETL researchers report molecular chain reaction thought to be impossible
7. Novel bioreactor enhances interleukin-12 production in genetically modified tobacco plants
8. Researchers shed new light on catalyzed reactions
9. Enzyme detectives uncover new reactions, products
10. Study helps explain how allergic reactions are triggered
11. New technique captures chemical reactions in a single living cell at unprecedented resolution
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/15/2014)... has admitted Johannes Gutenberg University Mainz (JGU) as ... hub continues to maintain a significant nationwide standing ... "The acceptance of Johannes Gutenberg University Mainz as ... milestone in the national and international competition for ... of Rhineland-Palatinate can be proud that Mainz University ...
(Date:10/15/2014)... the 44th Rosenstiel Award for Distinguished Work in Biomedical ... the mechanisms of genomic instability and its implications for ... second alumnus to win the Rosenstiel Award; the first, ... Alt is the Charles A. Janeway Professor of Pediatrics ... an investigator at the Howard Hughes Medical Institute at ...
(Date:10/14/2014)... 2014)—It,s been millions of years since T. rex ... by Ohio University scientists is breathing life back into ... dinosaur snouts. The research has important implications for how ... to enhance the sense of smell and cool their ... Ohio University doctoral student Jason Bourke, lead author of ...
Breaking Biology News(10 mins):Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 2Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 3Brandeis awards 44th Rosenstiel Award to pioneering geneticist Fred Alt 2Dinosaur breathing study shows that noses enhanced smelling and cooled brain 2Dinosaur breathing study shows that noses enhanced smelling and cooled brain 3
... Bartness, Regents, Professor of Biology at Georgia State University, ... Institutes of Health to further research into the biological ... Research in Time (MERIT) award from the National Institute ... his lab,s investigation into the communication loop between fat ...
... new study suggests that it might be a genetic ... three thousand men - all pairs of male twins ... first time they had sex. Many participants in the ... and premature ejaculation at their first sexual encounter. These ...
... called a "Dream Team." Lombardi Comprehensive Cancer ... DSc, and 12 of the nation,s top breast cancer ... Stand Up To Cancer (SU2C) to form a scientific ... and brightest scientists will conduct new breast cancer research ...
Cached Biology News:Researcher garners major award from NIH for further exploration into the mechanisms of obesity 2Lombardi scientist brings 'dream team' breast cancer research effort to GUMC 2Lombardi scientist brings 'dream team' breast cancer research effort to GUMC 3
(Date:10/22/2014)... 2014 Shimadzu Scientific Instruments introduces its ... for the pain management and clinical markets. The software ... review by allowing users to highlight and review results ... QuantAnalytics allows analysts to filter results by group or ... by eliminating the need to sift through analytes of ...
(Date:10/22/2014)... Cranford, NJ (PRWEB) October 22, 2014 ... technologies and services – has been working with a ... Health and New Haven Farms Community Farming Collaborative to ... iPad-based ePRO solution. The study, which started in ... Wellness program that provides participants weekly exposure to and ...
(Date:10/22/2014)... (PRWEB) October 22, 2014 Grace Century, ... and healthcare projects, announces the addition of Dr. ... to its advisory team. Dr. Siddiqui will provide further ... , A graduate of University College Medical School ... degreed in medicine in 2001. With further certification as ...
(Date:10/22/2014)... (PRWEB) October 22, 2014 According ... Market by Service Type (Consulting, Integration, Deployment & ... by Deployment Model (Public, Private, Others (Hybrid & ... MarketsandMarkets, defines and segments the Cloud Professional Services ... and forecasting of revenues. It also identifies the ...
Breaking Biology Technology:Shimadzu Releases QuantAnalytics Open Access LCMS Software Package for Clinical Applications 2myPROpad™ Topic of Panel Discussion at the Yale Food Systems Symposium 2myPROpad™ Topic of Panel Discussion at the Yale Food Systems Symposium 3Dr. Yousef Siddiqui joins the Grace Century Advisory Team 2Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 2Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 3Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 4Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 5
... SAN DIEGO, Feb. 3 Gen-Probe Incorporated (Nasdaq: ... has joined the Company as senior vice president, research ... expertise and leadership to our already strong senior management ... officer. "We believe Eric will play an integral ...
... Primary and Key Secondary Endpoints -- CAPACITY 1 Misses ... Submit NDA and MAA -BRISBANE, Calif., Feb. 3 ... results from the two Phase 3 CAPACITY studies evaluating ... The primary endpoint of change in percent predicted Forced ...
... is like none other. To mark the observance, African ... promote science education, achievement motivation and positive psychological development among ... ... Washington, DC (PRWEB) February 3, 2009 -- African Ancestry, Inc., ...
Cached Biology Technology:Eric Lai Joins Gen-Probe as Senior Vice President, Research and Development 2InterMune Reports Results of Two Phase 3 CAPACITY Studies of Pirfenidone in IPF 2InterMune Reports Results of Two Phase 3 CAPACITY Studies of Pirfenidone in IPF 3InterMune Reports Results of Two Phase 3 CAPACITY Studies of Pirfenidone in IPF 4InterMune Reports Results of Two Phase 3 CAPACITY Studies of Pirfenidone in IPF 5InterMune Reports Results of Two Phase 3 CAPACITY Studies of Pirfenidone in IPF 6InterMune Reports Results of Two Phase 3 CAPACITY Studies of Pirfenidone in IPF 7InterMune Reports Results of Two Phase 3 CAPACITY Studies of Pirfenidone in IPF 8InterMune Reports Results of Two Phase 3 CAPACITY Studies of Pirfenidone in IPF 9InterMune Reports Results of Two Phase 3 CAPACITY Studies of Pirfenidone in IPF 10InterMune Reports Results of Two Phase 3 CAPACITY Studies of Pirfenidone in IPF 11African Ancestry, Educators, Identity Experts Launch DNA Education Project during Historic Black History Month; 7th Graders Score High on Ultimate Self Test 2African Ancestry, Educators, Identity Experts Launch DNA Education Project during Historic Black History Month; 7th Graders Score High on Ultimate Self Test 3
... BD Pathway 435 is an affordable, ... plates and slides, providing a broad ... system rapidly acquires high-resolution images with ... flexible computer-controlled excitation and emission filter ...
... include: Microarray hybridization chamber assembly (1 ... clamp, thumbscrew) Microarray chamber user guide ... intended to be cleaned and reused. The ... Catalog Oligo Microarray kits and all custom ...
... Blood Vessel Staining Kit is a very ... vascular endothelial cells, containing both anti-von Willebrand ... applicable to a variety of species. This ... for the staining of frozen and paraffin-embedded ...
... Coon's Modification of Ham's F-12 was ... produced by viral fusion. The modification consists ... and including ascorbic acid. The salt concentrations ... contains 0.863 mg zinc sulfate per liter, ...
Biology Products: