Navigation Links
Just another pretty face: Dartmouth professor investigates neural basis of prosopagnosia
Date:2/1/2012

s around the scalps of prosopagnosics and showed them images of famous faces and non-famous faces, recording their responses. As expected, many of the famous faces were not recognized.

They found an electrical response at about 250 milliseconds (ms) after seeing the faces. Among the control group of non-prosopagnosics, a real difference was observed between their responses to famous and non-famous faces. In half the prosopagnosics there was not. Surprisingly, however, in the other half of the prosopagnosic test subjects they did find a difference.

"On the many trials where half failed to categorize a famous face as familiar, they nevertheless showed an EEG difference around 250ms after stimulus presentation between famous and non-famous faces like normal subjects do. Normal subjects also show a difference between famous and non-famous about 600ms after presentation, but the prosopagnosics did not show this difference," Duchaine observes.

This pattern of results suggests the prosopagnosics unconsciously recognized the famous faces at an early stage (250ms) but this information was lost by the later stage (600ms). Duchaine concludes that even though they are not consciously aware that this is a famous face, some part of their brain at this stage in the process is aware and is recognizing that face, a phenomenon termed covert face recognition.

He suggests that the other half of the prosopagnosics, who showed no difference between responses at 250ms, were experiencing a malfunction in their face processing system already at this early stage suggesting a different type of prosopagnosia.

"The temporal lobe contains a number of face processing areas, so you can imagine there are many different ways that this system can malfunction. Not only can an area not work, connections between areas might not work yielding probably dozens of these different variants of this condition," he surmises.

Covert recognition has been demo
'/>"/>

Contact: Justin Anderson
justin.anderson@dartmouth.edu
603-646-3015
Dartmouth College
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Another fisheries commission throws the science overboard in tuna decision, WWF says
2. Another reason to drink a nice cup of shade-grown joe
3. Cancer: Another step towards medication
4. Desert woodrats switch one dietary poison for another
5. Desert woodrats switch one dietary poison for another
6. The first DFG research centers to be funded for another four years
7. Another JDRF partner moves research forward with collaboration agreement for diabetes treatment
8. Ability to literally imagine oneself in anothers shoes may be tied to empathy
9. Why one way of learning is better than another
10. An answer to another of lifes big questions
11. Genetically-modified mice reveal another mechanism contributing to heart failure
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Just another pretty face: Dartmouth professor investigates neural basis of prosopagnosia
(Date:6/24/2015)... 2015 This report provides market analysis of ... years. It contains an analysis of the drivers, challenges, ... impact from the short, medium, and long term perspective ... market, and technology trends that currently, prevail in the ... authorities to efficiently manage the increasing marine traffic and ...
(Date:6/24/2015)... , June 24, 2015 Biometry ... with emerging biometric password solution one face in. ... one face in, entering the ... ground-breaking and affordable multifactor-authentication biometric answer to the ... technology, provided in partnership with KeyLemon, one face ...
(Date:6/23/2015)... June 23, 2015   Valencell, a ... results of a recent study that illustrates its ... wrist during activity. In a study conducted at ... along with the Apple Watch against a chest ... rate during activity. The study demonstrated that Valencell,s ...
Breaking Biology News(10 mins):Automatic Identification System Market by Class, by Platform, by Application and by Geography - Global Forecasts & Analysis to 2014 - 2020 2KeyLemon Announces Partnership With Biometric Password Solution onefacein 2Valencell Delivers Breakthrough Heart Rate Accuracy on the Wrist 2Valencell Delivers Breakthrough Heart Rate Accuracy on the Wrist 3
... Researchers at the David Geffen School of Medicine at ... proteins known as sodium glucose co-transporters (SGLTs), which pump ... the treatment of chronic diarrhea via oral rehydration therapy, ... The solution of the SGLT structure will accelerate development ...
... have provided vital information to relief workers in Myanmar ... devastating Cyclone Nargis that hit the country on 2 ... the UN Office for the Coordination of Humanitarian Affairs ... Disasters, referred to as ,the Charter, for support by ...
... Want to slow the signs of aging and live longer? ... could be a promising strategy. Calorie restriction has ... and mice. While scientists do not know how calorie restriction ... that it slows aging by decreasing a thyroid hormone, triiodothyronine ...
Cached Biology News:UCLA researchers clarify function of glucose transport molecule 2Extended cyclone relief efforts aided from space 2Extended cyclone relief efforts aided from space 3Looking for the Founatain of Youth? Cut your calories, research suggests 2
(Date:7/3/2015)... ... July 03, 2015 , ... ... products for use in applications such as animal waste reduction, bioremediation, wastewater ... and restaurant kitchen settings, announced today that it will be showcasing, ManureMagic™, ...
(Date:7/3/2015)... 3, 2015 ... osoitteessa  http://www.openinnovationinscience.at Wienissä pidettävään ... Science" -jatkokoulutusohjelmaan 22.7.2015 asti.  ... tekemän, kansainvälisiä tutkijoita ja tiedemiehiä ... suurinta haastetta ovat kannustimien puute ...
(Date:7/3/2015)... ... July 03, 2015 , ... The Alexander ... and professional service industries alike-- typically known for its consummate professionalism-- embarks each ... good cause and break from their day jobs. , "Our motto has always ...
(Date:7/3/2015)... ... ... The global failure analysis market is expected to reach $7,147.0 million by 2020, at ... grow at the highest CAGR of 8.46%; its growth is expected to be driven ... institutions for root cause analysis of failure. The market based on the geographic regions ...
Breaking Biology Technology:DryLet to Highlight Benefits of Patented ManureMagic™ at North American Manure Expo in Chambersburg, PA July 14-15, 2015 2Maailman ensimmäinen tiedemiesten koulutukseen suunniteltu avoimen innovaation ohjelma käynnistyy 2Maailman ensimmäinen tiedemiesten koulutukseen suunniteltu avoimen innovaation ohjelma käynnistyy 3The Alexander Group Declares Their Independence with a Bit of Levity 2Failure Analysis Market to Grow at 7.52% CAGR to 2020 2Failure Analysis Market to Grow at 7.52% CAGR to 2020 3Failure Analysis Market to Grow at 7.52% CAGR to 2020 4Failure Analysis Market to Grow at 7.52% CAGR to 2020 5
... BEACH, Va., May 8 LifeNet Health, a,leading ... was awarded an Excellence in Innovation award at ... in Hampton, Virginia., The Excellence in Innovation ... most innovative patents that were filed from within,the ...
... Attack Deaths by Shielding ... High-Risk Plaques in Coronary Arteries, DOYLESTOWN, ... medical device company dedicated to reducing deaths from,heart attacks, ... treatment of rupture-prone or "vulnerable" plaques,with a focus on ...
... May 8 BioCryst,Pharmaceuticals, Inc. (Nasdaq: BCRX ) today ... Company reported revenues of $10.8M,in the first quarter of 2008, ... loss for the quarter ended March 31, 2008 was $13.1M, ... quarter ended March 31,2007 of $8.8M, or $0.30 per share., ...
Cached Biology Technology:LifeNet Health Chief Scientific Officer Wins Award 2Prescient Medical, Inc. to Present Data on Identification and Treatment of Rupture-Prone Coronary Plaques at EuroPCR 2008 2BioCryst Reports First Quarter 2008 Financial Results and Clinical Update 2BioCryst Reports First Quarter 2008 Financial Results and Clinical Update 3BioCryst Reports First Quarter 2008 Financial Results and Clinical Update 4BioCryst Reports First Quarter 2008 Financial Results and Clinical Update 5BioCryst Reports First Quarter 2008 Financial Results and Clinical Update 6BioCryst Reports First Quarter 2008 Financial Results and Clinical Update 7BioCryst Reports First Quarter 2008 Financial Results and Clinical Update 8
RABBIT ANTI HALOPERIDOL...
Form: Ready to use Applications: Western Blot, ELISA...
... Bench-Top Open System Chemistry Analyzer for General Chemistries, Specialty Chemistries, QC, Reagent Development, Pharmaceutical ... grating, diode spectrophotometer over 30 user-selectable wavelengths. ... ... ...
2,4,6, Trinitrophenyl hapten is conjugated to lipopolysaccharide (LPS)....
Biology Products: