HOME >> BIOLOGY >> NEWS
Human-Like Ability, Categorical Perception, Found In Insects

biologists set up a cricket flight chamber, wired for sound, computerized data-gathering and a built-in breeze from a fan, to make the cricket think it is flying while tethered in midair. "We weren't looking for the so-called continuous perception," Wyttenbach said, explaining that continuous perception allows human color vision to discriminate hundreds of variations between "blue" and "green," even though humans cannot precisely label each bluish-sort-of-green color.

"A more useful ability in some situations is our ability to tell the difference between sounds like 'ba' and 'pa,' " Wyttenbach noted. "Even though there is a continuum of variation between 'ba' and 'pa' based on voice onset time or VOT, which instruments can detect, our ears don't discriminate. We hear either 'ba' or 'pa' and that's how we label it. That is categorical perception, and it looked like crickets might categorically perceive sounds as either 'other crickets' or 'bats.' "

Categorical perception previously had been shown at other laboratories in monkeys, chinchillas and some species of birds, Wyttenbach knew, but getting crickets to explain how they make up their minds would be tricky. His flight chamber experiments were showing that playback sounds mimicking cricket calls made the tethered insects "fly" toward the speaker. And sounds in the bat's ultrasound range made the crickets veer away from the speaker. Still, he couldn't very well ask the crickets: "Do 20 kHz and 40 kHz sound the same or different?"

So the neurobiologists turned to a test suggested by Cornell Professor of Psychology Elizabeth Spelke for another category of notoriously uncooperative research subjects, human babies. Spelke's habituation-dishabituation test determines precisely what stimulus level is "different enough" to get a subject's attention when it has grown accustomed to (or habituated to ) repeated stimuli. Babies respond less and less when they hear "pa" repeated over and over; they pay a
'"/>

Contact: Roger Segelken
hrs2@cornell.edu
607-255-9736
Cornell University News Service
13-Sep-1996


Page: 1 2 3

Related biology news :

1. Brown ecologist garners major National Science Foundation grant
2. APS Foundation names student travel award recipients
3. Institute for OneWorld Health receives Gates Foundation grant
4. National Parkinson Foundation designates UNC as Center of Excellence
5. National Cancer Gene Therapy Foundation gives $4.0 million in research grants
6. Betty Ann Forbes wins 2004 ASM Founders Award
7. Leslie Ann Schiff wins 2004 Carski Foundation Award
8. Grant from GE Foundation to University of Houston to strengthen math, tech pipeline
9. National Foundation For Cancer Research names UCSDs Webster Cavenee NFCR Fellow
10. Founder of UCSD bioengineering program honored with lifetime achievement award
11. Green Foundation, Trust gives $12.8 million for UT Southwestern comprehensive research center

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Human Like Ability Categorical Perception Found Insects

(Date:3/23/2015)...   HOYOS Labs , a leading global authentication ... the Company will demonstrate multiple biometrics-based technologies under its ... Connect:ID on March 23 through 25, 2015, in ... the IEEE Biometric Open Protocol Standard; free biometrics-based consumer ... control system. BOPS was invented by HOYOS Labs and ...
(Date:3/23/2015)... Mar. 23, 2015 NXT-ID, Inc. (NASDAQ: NXTD ) ... the growing mobile commerce market, announces its biometric payment technology, ... on CNBC television starting March 30 th . ... in New York markets. ... are excited about our new ad campaign following the recent ...
(Date:3/20/2015)... Mar. 19, 2015 Research and Markets ( ... Geometry - Global Strategic Business Report" report to their ... Hand Geometry in US$ Thousands. The report provides separate comprehensive ... Japan , Europe , ... and Rest of World. Annual estimates and forecasts ...
Breaking Biology News(10 mins):HOYOS Labs to Showcase Host of Biometrics Technologies at Connect:ID in Washington, D.C. 2HOYOS Labs to Showcase Host of Biometrics Technologies at Connect:ID in Washington, D.C. 3NXT-ID's Wocket Smart Wallet to Launch New CNBC Regional TV Ad Campaign 2NXT-ID's Wocket Smart Wallet to Launch New CNBC Regional TV Ad Campaign 3Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 2Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 3Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 4
(Date:4/16/2015)... , April 16, 2015 /CNW/ - Bioenterprise Corporation is ... newest office in Charlottetown , PEI.  ... Prince Edward Island ADAPT Council for the commercialization of ... forward to working with PEI ADAPT.  They have been ... more than a decade," explains Dave Smardon , ...
(Date:4/16/2015)... , April 16, 2015  AnaptysBio, Inc., a ... therapeutic antibodies, today announced the advancement of ... into IND-enabling studies. The Company,s anti-IL-36R therapeutic ... for generalized pustular psoriasis (GPP), an orphan ... need. ANB019 is wholly owned within AnaptysBio,s proprietary ...
(Date:4/16/2015)...  EMD Serono today announced the US biopharmaceutical ... , appointed Alise Reicin , MD, ... Development.  Dr. Reicin brings extensive research and early/late ... Immunology. She is an accomplished pharmaceutical executive with ... President in various capacities across R&D at MSD ...
(Date:4/16/2015)... Fairleigh Dickinson University ( FDU ... become the Executive Director of the Rothman Institute ... kick-off of the Initiative for Patient Centered Innovation ... under the Rothman Institute of Innovation and Entrepreneurship ... collaboration with FDU’s School of Pharmacy’s Center for ...
Breaking Biology Technology:Bioenterprise Corporation Expands into the Maritimes 2AnaptysBio Advances First-In-Class Anti-IL-36 Receptor Antibody Program To Treat Orphan Inflammatory Disease 2Alise Reicin Joins the Biopharmaceutical Business of Merck KGaA, Darmstadt, Germany as Head of Global Clinical Development 2Alise Reicin Joins the Biopharmaceutical Business of Merck KGaA, Darmstadt, Germany as Head of Global Clinical Development 3Dr. Joseph V. Gulfo Named Executive Director of Fairleigh Dickinson University’s Rothman Institute to Spearhead New Initiative for Patient-Centered Innovation (iPCI) 2Dr. Joseph V. Gulfo Named Executive Director of Fairleigh Dickinson University’s Rothman Institute to Spearhead New Initiative for Patient-Centered Innovation (iPCI) 3
Cached News: