Theories about how the brain works remain a topic of debate. It is agreed, though, that the hippocampus, a part of the brain, is undeniably important for memory. When we experience something, the information is sent via our senses to the hippocampus, where it is processed. Scientists believe that brain cells called neurons first transform the sensory stimuli we experience into images in our immediate memory. Then, these images are sent to the hippocampus and stored temporarily in short-term memory. In the hippocampus, information is organized and it is during this process that parts of the image of our experience fade away. Finally, certain information is then transferred to long-term memory in a section in the frontal lobe of the brain known as the cerebral cortex. Scientists think this process may happen while we are sleeping, but exactly how the information is transferred from one area of the brain to another is a mystery.
Answer the following questions
- This reading is mainly concerned with —-.
a how to improve our memory
b why some of the information in short-term memory fades away
c illness that results in severe memory loss
d how human brain processes and stores information
e the importance of neurons in transferring sensory stimuli - According to the passage scientists —-.
a know that information is sent from the long-term memory to the hippocampus
b have found out why some of the information is lost in the hippocampus
c don’t know exactly how the information is transferred from one area of the brain to another
d agree on how the brain works
e still debate whether the hippocampus is important for memory - It is pointed out in the reading that —-.
a the brain was not considered as a highly complex organ in the past
b damage to hippocampus doesn’t cause memory loss
c all of the information stored in the short term is transferred to long-time memory
d hippocampus is in the frontal lobe of the brain
e scientists agree that the hippocampus is important in processing information
