Menus Subscribe Search

Quick Studies

PANCAKE1.jpg

Pretty Woman. (Photo: Buena Vista Pictures)

Why You Rarely Notice Major Movie Bloopers

• March 31, 2014 • 1:51 PM

Pretty Woman. (Photo: Buena Vista Pictures)

The visual field accounts for the recent past in order to prevent us from feeling like we’ve gone mad.

Even the most practiced auteurs make embarrassing continuity errors. Take, for instance, Garry Marshall’s otherwise flawless 1990 romantic classic Pretty Woman. In one scene, a croissant makes a radical transformation into a pancake. And then, miraculously, a bite mark in one shot evaporates from the next:

The reason these mistakes so often go unnoticed by everyone except next-level blooper detectives may have something to do with the way people process the visual field.

A new study in Nature Neuroscience by MIT postdoctoral fellow Jason Fischer and his University of California-Berkeley colleague David Whitney suggests that humans are equipped with “serially dependent” visual perception, a process that uses prior stimuli and current information to construct the scene in front of us.

Without a visual mechanism to adjust the current scene for recent prior stimuli, daily life would be more akin to a jarring acid trip.

The researchers tested the idea with experiments that asked subjects to look at flashes of “randomly oriented gratings presented several seconds apart in time” and then report “the perceived orientation of each grating” by marking it on a computer screen. “We found that perceived orientation was strongly and systematically attracted toward orientations seen over the last several seconds,” the scientists write. “This perceptual serial dependence was modulated by attention and was spatially tuned, occurring more strongly for successive stimuli that appeared nearby in space.”

The researchers term the space in which the phenomenon occurs a “continuity field,” and conducted other experiments to ensure that it wasn’t simply the result of consistency in “motor responses or decision processes.”

But isn’t spotting subtle change important? Why are our eyes deceiving us with this stale field of croissants?

Without a visual mechanism to adjust the current scene for recent prior stimuli, daily life would be more akin to a jarring acid trip, according to the authors. “The continuity field smoothes what would otherwise be a jittery perception of object features over time,” David Whitney, senior author and associate professor of psychology at UC Berkeley, told the university’s news center. Accounting for an aggregate of small recent changes in the environment—due to “head and eye movements,” shadows, and lighting—allows us to walk around without feeling like we’ve stepped into a field of melting clocks.

Ryan Jacobs
Associate Digital Editor Ryan Jacobs joined Pacific Standard from The Atlantic, where he wrote for and produced the magazine’s Global and China channels online. Before that, he was a senior editorial fellow at Mother Jones. Follow him on Twitter @Ryanj899.

More From Ryan Jacobs

A weekly roundup of the best of Pacific Standard and PSmag.com, delivered straight to your inbox.

Recent Posts

July 24 • 6:00 AM

Commercializing the Counterculture: How the Summer Music Festival Went Mainstream

With painted Volkswagen buses, talk of “free love,” and other reminders of the Woodstock era replaced by advertising and corporate sponsorships, hippie culture may be dying, but a new subculture—a sort of purgatory between hipster and hippie—is on the rise.


July 24 • 5:00 AM

In Praise of Our Short Attention Spans

Maybe there’s a good reason why it seems like there’s been a decline in our our ability to concentrate for a prolonged period of time.


July 24 • 4:00 AM

How Stereotypes Take Shape

New research from Scotland finds they’re an unfortunate product of the way we process and share information.


July 23 • 4:00 PM

Who Doesn’t Like Atheists?

The Pew Research Center asked Americans of varying religious affiliations how they felt about each other.


July 23 • 2:00 PM

We Need to Start Tracking Patient Harm and Medical Mistakes Now

Top patient-safety experts call on Congress to step in and, among other steps, give the Centers for Disease Control and Prevention wider responsibility for measuring medical mistakes.


July 23 • 12:19 PM

How a CEO’s Fiery Battle Speeches Can Shape Ethical Behavior

CEO war speech might inspire ethical decisions internally and unethical ones among competing companies.


July 23 • 12:00 PM

Why Do We Love the ‘Kim Kardashian: Hollywood’ Game?

It’s easy enough to turn yourself into a virtual celebrity, complete with fame and mansions—but it will likely cost you.


July 23 • 11:49 AM

Modern Technology Still Doesn’t Protect Americans From Deadly Landslides

No landslide monitoring or warning systems are being used to protect vulnerable communities.


July 23 • 10:00 AM

Outing the Death-Drug Distributors

Calling all hackers: It’s time to go Assange on capital punishment.


July 23 • 8:00 AM

The Surprising Appeal of Products That Require Effort to Use

New research finds they enable consumers to re-establish a feeling that they’re in control of their lives.



July 23 • 6:00 AM

How the Other Half Lifts: What Your Workout Says About Your Social Class

Why can’t triathletes and weightlifters get along?


July 23 • 5:02 AM

Battle of the Public Intellectuals: Edward Glaeser vs. Richard Florida

On gentrification and housing costs.


July 23 • 4:00 AM

Our Fear of Immigrants

Why did a group of fourth graders rally in support of an undocumented classmate while the citizens of Murrieta, California, tried to stop immigrant children from entering their town?


July 22 • 4:00 PM

Can Meditation Really Slow Aging?

Is there real science in the spiritualism of meditation? Jo Marchant meets a Nobel Prize-winner who thinks so.



July 22 • 2:00 PM

The Alabama Judge Who Refuses to Let Desegregation Orders Go Ignored

A federal judge in Alabama says a local school board has failed to meet legal mandate to integrate.


July 22 • 12:00 PM

On the Destinations of Species

It’s almost always easier to cross international borders if you’re something other than human.


July 22 • 10:51 AM

The Link Between Carbs, Gut Microbes, and Colon Cancer

Reduced carb intake among mice protected them from colon cancer.


July 22 • 10:47 AM

Irrational Choice Theory: The LeBron James Migration From Miami to Cleveland

Return migrants to Cleveland have been coming home in large numbers for quite some time. It makes perfect sense.


July 22 • 9:32 AM

This Time, Scalia Was Right

President Obama’s recess appointments were wrong and, worse, dangerous.


July 22 • 8:00 AM

On Vegas Strip, Blackjack Rule Change Is Sleight of Hand

Casino operators are changing blackjack payouts to give the house an even greater advantage. Is this a sign that Vegas is on its way back from the recession, or that the Strip’s biggest players are trying to squeeze some more cash out of visitors before the well runs dry?


July 22 • 6:00 AM

Label Me Confused

How the words on a bag of food create more questions than answers.


July 22 • 5:07 AM

Doubly Victimized: The Shocking Prevalence of Violence Against Homeless Women

An especially vulnerable population is surveyed by researchers.


July 22 • 4:00 AM

New Evidence That Blacks Are Aging Faster Than Whites

A large study finds American blacks are, biologically, three years older than their white chronological counterparts.


Follow us


Subscribe Now

How a CEO’s Fiery Battle Speeches Can Shape Ethical Behavior

CEO war speech might inspire ethical decisions internally and unethical ones among competing companies.

Modern Technology Still Doesn’t Protect Americans From Deadly Landslides

No landslide monitoring or warning systems are being used to protect vulnerable communities.

The Link Between Carbs, Gut Microbes, and Colon Cancer

Reduced carb intake among mice protected them from colon cancer.

The New Weapon Against Disease-Spreading Insects Is Big Data

Computer models that pinpoint the likely locations of mosquitoes and tsetse flies are helping officials target vector control efforts.

People Are Clueless About Placebos

Doctors know that sometimes the best medicine is no medicine at all. But how do patients feel about getting duped into recovery?

The Big One

Today, the United States produces less than two percent of the clothing purchased by Americans. In 1990, it produced nearly 50 percent. July/August 2014

Copyright © 2014 by Pacific Standard and The Miller-McCune Center for Research, Media, and Public Policy. All Rights Reserved.