Showing posts with label rats. Show all posts
Showing posts with label rats. Show all posts

Friday, June 18, 2010

Maze proves that bigger bonus equals worse performance

BUSINESS BOOKS-Bigger bonus, worse performance


Click the title to view the original article.

* Author says bonus pressure leads to poorer performances
* Bankers still convinced their skills deserve big pay

By Kristina Cooke

NEW YORK, June 17 (Reuters) - Around the turn of every year, bankers can think of only one thing: the size of their bonuses.

Even beyond bonus season, they run different scenarios and assumptions, trying to calculate their number.

This distracts them so much that the bigger the bonus at stake, the worse the performance, according to behavioral economist Dan Ariely, who lays out his theory in his new book "The Upside of Irrationality" (HarperCollins, $27.99).

"For a long time we trained bankers to think they are the masters of the universe, have unique skills and deserve to be paid these amounts," said Ariely, who also wrote the New York Times bestseller "Predictably Irrational."

"It is going to be hard to convince them that they don't really have unique skills and that the amount they've been paid for the past years is too much."

Ariely's findings come as regulators try to rein in Wall Street's bonus culture after the 2008 financial collapse. The financial industry argues it needs to pay large bonuses to attract and motivate its top employees.

In an experiment in India, Ariely measured the impact of different bonuses on how participants did in a number of tasks that required creativity, concentration and problem-solving.

One of the tasks was Labyrinth, where the participants had to move a small steel ball through a maze avoiding holes. Ariely describes a man he identified as Anoopum, who stood to win the biggest bonus, staring at the steel ball as if it were prey.

"This is very, very important," Anoopum mumbled to himself. "I must succeed." But under the gun, Anoopum's hands trembled uncontrollably, and he failed time after time.

A large bonus was equal to five months of their regular pay, a medium-sized bonus was equivalent to about two weeks pay and a small bonus was a day's pay.

There was little difference in the performance of those receiving the small and medium-sized bonuses, while recipients of large bonuses performed worst.

SHOCK TREATMENT

More than a century ago, an experiment with rats in a maze rigged with electric shocks came to a similar conclusion. Every day, the rats had to learn how to navigate a new maze safely.

When the electric shocks were low, the rats had little incentive to avoid them. At medium intensity they learned their environment more quickly.

But when the shock intensity was very high, it seemed the rats could not focus on anything other than the fear of the shock.

This may provide lessons for regulators who want to change Wall Street's bonus culture, Ariely said. Paying no bonus or smaller bonuses could help fix skewed incentives without loss of talent.

"The reality is, a lot of places are able to attract great quality people without paying them what bankers are paid," Ariely said. "Do you think bankers are inherently smarter than other people? I don't." (Reporting by Kristina Cooke; Editing by Daniel Trotta)

Monday, June 14, 2010

Rodent of the Week: How habits are formed

Rodent of the Week: How habits are formed

June 11, 2010

Rodent_of_the_week When I was in high school, I had to drive a long distance on a freeway to get to school. After arriving, I often wondered how I got there. I didn't remember the drive or even thinking about driving.

This feeling is a common (and, yes, somewhat scary) experience that a group of neuroscientists think they can better explain. In an experiment with rats, researchers at MIT identified two distinct neural circuits in the brain that show distinct changes when the rats were learning to navigate a maze and, later, after they mastered the task.

The rats were placed in a maze that had chocolate sprinkles at the end. The activity in specific parts of their brains was analyzed as they learned the maze, which included a T-juncture where they had to stop and choose to turn right or left. The rats performed the maze repeatedly until they had learned it.

The study showed that one specific neural circuit became stronger with practice. A second neural circuit showed high activity occurring at times when the rats had to make a decision in the maze. But as they learned the maze, activity in this circuit declined. The task had become habitual.

So, arriving at school in one piece wasn't just a matter of luck. "It is good to know that we can train our brains to develop good habits and avoid bad ones," the lead author of the study, Ann Graybiel, said in a news release.

Understanding how specific regions of the brain change through learning could help in developing new treatments for brain-based diseases. The study was published Thursday in the journal Neuron.

-- Shari Roan

Photo credit: Advanced Cell Technology Inc.

Some cool mazes, maze art and maze cartoons
Mushroom maze
Maze A Delical
Maze of Mushrooms by Yonatan Frimer 2006
Maze Portrait of Albert Einstein.
Celebrity, artword, celebrities, portraits, famous,  Portait maze of albert einstein
"Genius Maze" - By Y. Frimer


Maze Cartoon of Erdogans comparison of Flotilla raid to September 11th.

Maze cartoon of erdogan on flotilla and armenian genocide

Maze cartoon of Turkish Prime Minister Erdogan comparing the Flotilla raid to September 11th. Someone from the crowd asks how it would "stack up against the Armenian Genocide." Created by Yonatan Frimer
Click here for a printable, hi-res version of this maze
Click here or on the image for the maze solution.