Have you ever been so absorbed in a conversation at a party that you failed to notice that someone new is standing only six inches away from you, trying to get your attention? It’s possible that you were so distracted that you didn’t notice someone approaching you. But it’s also entirely likely that you were experiencing change blindness.
Change blindness is a phenomenon that occurs when a person is unable to notice visual changes in their environment, despite the fact that they are often rather obvious. In cases of change blindness, the person isn’t failing to notice small or insignificant changes, but will probably miss big changes, like someone standing next to them waving their hand.
Early experiments with change blindness focused largely on memory and perception when viewing pictures. For example, a person might be shown a photograph of a street scene in Egypt and told to memorize the image. Following that, they would be shown the same picture with certain elements added or taken away and asked to identify what’s different. Very often the individual could recall the larger aspects of the picture but couldn’t recognize the smaller changes.
In the 1990s, researcher Daniel Simons conducted a fascinating study into change blindness that many people find unbelievable. In Simons’ study, he asked participants to watch a video of a basketball being passed around between several people, with a particular focus on the basketball itself. When the experiment was over, Simons found that a large number of participants were so focused on watching the basketball being passed around that they failed to notice a man in a gorilla suit jumping around in front of the camera.
It’s important to note that the change in Simons’ video wasn’t subtle; the gorilla is very obviously taking up much of the frame. Simons concluded that participants were experiencing inattentional blindness, which is when a person fails to notice a major change because they are so focused on another task. In this case, because participants were asked to focus on the movement of the basketball, their brains prioritized that task in order to do it properly, thereby missing the other things happening in the video.
In the case of Simons’ study, participants engaged what’s referred to as attentional selection, which is when a person selects certain things to focus on in order to achieve a task and filters out anything that is unrelated to the objective.
There are a number of theories about what causes a person’s inability to recognize obvious changes in their environment, but most agree that the phenomenon is related to sensory processing. Broadly speaking, our brains have a limited capacity to detect and process everything in our environment. Instead, what the brain does is choose certain things to process, evaluate, and store, which allows other things to be missed or filtered out.
In simple terms, change blindness has a great deal to do with where a person directs their attention. In the case of the gorilla and the basketball, people focused their attention almost exclusively on one thing, which caused them to miss other elements or changes. Given that attention is often at the root of change blindness, a person’s age or mental and physical health can influence how well they will notice changes in stimuli.
Change Blindness | |
(71) ▲ of change blindness | Change blindness is a surprising perceptual phenomenon that occurs when a person recognizes minor changes in scenes while large changes go (72) ▲ . |
Experiments with change blindness | ●The main (73) ▲ of early experiments was memory and perception. ●Individuals were found to be (74) ▲ at recalling the smaller details in the same picture previously shown to them. |
Research in the 1990s | ●In Simons’ study, participants were asked to pay special attention to the (75) ▲ basketball, during which time a man wearing a gorilla suit unexpectedly walked through the scene. ●Contrary to popular belief, with their attention fixed on the basketball, many participants reported that the “gorilla” (76) ▲ their notice. ●It is concluded that participants fail to recognize something big but unrelated to the objective when their brains are programmed to consider some task as a top (77) ▲ . |
(78) ▲ of change blindness | ●The brain makes (79) ▲ about what to be dealt with because of its limited capacity. ●Although attention is closely (80) ▲ to change blindness, age and health are other factors that play a role. |
71. Definition/Concept 72. unnoticed 73. focus 74. poor 75. moving
76. escaped 77. priority 78. Causes 79. choices 80. related/linked
In a society, such as the United States or Canada, which has many national, religious and cultural differences, people highly value individualism--the difference among people. Teachers place a lot of importance on the qualities that make each student special. The educational systems in these countries show these values. Students don't memorize information. Instead, they work individually and find answers themselves. There is often discussion in the classroom. At an early age, students learn to form their own ideas and opinions.
In most Asian societies, by contrast, people have the same language, history, and culture. Perhaps for this reason, the educational system in much of Asia reflects society’s belief in group goals and purposes rather than individualism. Children in China, Japan, and Korea often work together and help one another in assignments. In the classroom, the teaching methods are often very formal. The teacher lectures, and the students listen. There is not much discussion. Instead, the students recite rules of information that they have memorized.
There are advantages and disadvantages to both of these systems of education. For example, one advantage to the system in Japan is that there much more math and science than American students learn by the end of high school. They also study more hours each day and more days each year than North Americans do. The system is difficult, but it prepares students for a society that values discipline and self-control. There is, however, a disadvantage. Memorization is an important learning method in Japanese schools, yet many students say that after an exam, they forget much of the information that they have memorized.
The advantage of the educational system in North American, on the other hand, is that students learn to think for themselves. The system prepares them for a society that values creative ideas. There is, however, a disadvantage. When students graduate from high school, they haven’t memorized as many basic rules and facts as students in other countries have.
Title: 76 of Educational System between North America and Asia
Students in the US and 77 | Students in China, Japan and Korea | |
What do they 78 | Individualism | 79 goals and purposes |
Different 80 of study | Working individually | Listening to the teachers |
Forming their own ideas and opinions | Reciting rules and memorizing information | |
A lot of discussion in the classroom | Not much discussion | |
81 | Learning to think for themselves | Learning much more math and science |
Studying more hours each day and more days each year | ||
Good for a society that values 82 | Good for a society valuing 83 and self-control | |
Disadvantages | Students haven’t memorized many basic rules and facts before 84___ | Information is 85 easily. |
Directions: Read the following passage. Complete the diagram by using the information from the passage. Write NO MORE THAN 3 WORDS for each answer.
American public education has changed in recent years. One change is that increasing numbers of American parents and teachers are starting independent public schools called charter schools.
In 1991, there were no charter schools in the Unite States. Today, more than 2300 charter schools operate in 34 states and the District of Columbia. 575. 000 students attend these schools. The students are from 5 years of age through 18 or older.
A charter school is created by groups of parents, teachers and community members. It is similar in some ways to a traditional public school. It receives tax money to operate a number of students. The charter school must prove to local or state governments that its students are learning. These governments provide the school with the agreement, or charter that permits it to operate.
Unlike a traditional public school, however, the charter school does not have to obey most laws governing public schools. Local, state or federal governments cannot tell it what to teach.
Each school can choose its own goals and decide the ways it wants to reach those goals. Class sizes are usually smaller than in many traditional public schools. Many students and parents say teachers in charter schools can be more creative.
However, state education agencies, local education-governing committees and unions often oppose charter schools. They say these schools may receive money badly needed by traditional public schools. Experts say some charter schools are doing well while others are struggling.
Congress provided 200 million dollars for establishing charter schools in the 2006 federal budget. But, often the schools say they lack enough money for programs. Many also lack needed space, District officials say they have provided 14 former school buildings for charter education. Yet charter school supporters say officials should try harder to find more space.
Title: 71.
72 ________ | Independent public school | ||
Similarities between charter schools and traditional schools | ●73 ________ to operate U number of students ●Having to prove the students are learning ●Getting 74 ________ to operate from government | ||
75 __________ between charter schools and traditional schools | ●Not having to obey most laws for public schools ●Being free to decide the 76 ________ ●Being free to choose the goals and decide 77 ________ them ●There usually being 78 ________ students in charter schools’classes ●Having teachers who are more creative | ||
Charter school's problems | Opinions from education departments | These schools receiving money badly needed by 79 ________ Not all doing well | |
Opinions from charter schools | Lacking enough money Lacking 80._________ |