Skip to comments.
Monkeys fall for visual illusion
bbc ^
| 25 June 2009
| Victoria Gill
Posted on 06/26/2009 6:12:12 PM PDT by JoeProBono
A visual illusion has provided clues about how monkeys recognise faces. In a study, rhesus monkeys responded to the "Thatcher effect", a strange phenomenon that makes it difficult to detect changes in an upside down face.
The study, in the journal Current Biology, is the first to show this effect in non-human animals. The authors say this suggests that the ability to identify a familiar face may have evolved in an ancestor common to humans and rhesus monkeys. The Thatcher effect is named after Margaret Thatcher, because images of the former UK prime minister's face were used its first demonstration, in experiments with humans. A "thatcherised" image of a face has its mouth and eyes inverted relative to the rest of the face.
(Excerpt) Read more at news.bbc.co.uk ...
TOPICS: Pets/Animals
KEYWORDS: illusion; monkey
Navigation: use the links below to view more comments.
first 1-20, 21-26 next last
To: JoeProBono
Just reading the title, I thought this thread was going to be about all of the idiot RINOs that voted for the energy tax bill today.
2
posted on
06/26/2009 6:16:46 PM PDT
by
KoRn
(Department of Homeland Security, Certified - "Right Wing Extremist")
To: KoRn
Humans fall for buzzwords.
3
posted on
06/26/2009 6:20:49 PM PDT
by
omega4179
(Obamaphobe)
To: JoeProBono
The study originally used pictures of Nancy Pelosi until PETA complained.
To: KoRn
5
posted on
06/26/2009 6:29:41 PM PDT
by
JoeProBono
(A closed mouth gathers no feet)
To: Roscoe Karns
6
posted on
06/26/2009 6:31:25 PM PDT
by
JoeProBono
(A closed mouth gathers no feet)
To: All
7
posted on
06/26/2009 6:34:21 PM PDT
by
JoeProBono
(A closed mouth gathers no feet)
To: All
8
posted on
06/26/2009 6:36:54 PM PDT
by
JoeProBono
(A closed mouth gathers no feet)
To: JoeProBono
9
posted on
06/26/2009 6:37:54 PM PDT
by
Krankor
("Quit talking about the eight men, or there's gonna be nine.")
To: Krankor
10
posted on
06/26/2009 6:43:20 PM PDT
by
JoeProBono
(A closed mouth gathers no feet)
To: All
Move back
11
posted on
06/26/2009 6:49:16 PM PDT
by
JoeProBono
(A closed mouth gathers no feet)
To: JoeProBono
I just want you to know—as I head for a chocolate martini—that the only thing keeping me from a headache with post #6 is I kept my head moving and eyes scanning.
12
posted on
06/26/2009 6:51:20 PM PDT
by
MHGinTN
(Believing they cannot be deceived, they cannot be convinced when they are deceived.)
To: JoeProBono
The Helen Thomas effect is useful as first aid for swallowing non corrosive poisons or preparation for a colonoscopy depending on individual reactions.
13
posted on
06/26/2009 6:59:21 PM PDT
by
AZ .44 MAG
(A society that doesn't protect its children doesn't deserve to survive.)
To: JoeProBono
I have monkey thoughts of this woman....
14
posted on
06/26/2009 6:59:56 PM PDT
by
SERKIT
("Blazing Saddles" explains it all.....)
To: JoeProBono
15
posted on
06/26/2009 7:02:24 PM PDT
by
Krankor
("Quit talking about the eight men, or there's gonna be nine.")
To: AZ .44 MAG
To: JoeProBono
The Thatcher effect or Thatcher illusion is a phenomenon where it becomes difficult to detect local feature changes in an upside down face, despite identical changes being obvious in an upright face. It is named after British former Prime Minister Margaret Thatcher on whose photograph the effect has been most famously demonstrated. This was originally created by Peter Thompson, who is a professor at the University of York, England
To: BattleHymn
Gurrrrrk gurrrrrk .gurrrrrk., gaaaaaaaaack!
Thanks. That was therapeutic.
18
posted on
06/26/2009 7:23:12 PM PDT
by
AZ .44 MAG
(A society that doesn't protect its children doesn't deserve to survive.)
To: Krankor
Who ever owns that foot needs to wear sox.
19
posted on
06/26/2009 7:58:39 PM PDT
by
Lockbar
(March toward the sound of the guns.)
To: Brother Cracker
20
posted on
06/26/2009 8:22:07 PM PDT
by
JoeProBono
(A closed mouth gathers no feet)
Navigation: use the links below to view more comments.
first 1-20, 21-26 next last
Disclaimer:
Opinions posted on Free Republic are those of the individual
posters and do not necessarily represent the opinion of Free Republic or its
management. All materials posted herein are protected by copyright law and the
exemption for fair use of copyrighted works.
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson
