個人練習用：英語長文：物忘れ４つの理論

(Several theories about why we forget things have been put forword.)

Several theories about why we forget things have been put forword.

(A common theory is that our memories simply wear out if we don't use them.)

A common theory is that our memories simply wear out if we don't use them.

(This is called the "decay through disuse" theory)

This is called the "decay through disuse" theory

(but there is virtually no real evidence to support it.)

but there is virtually no real evidence to support it.

(Another theory suggests that every new item we put into)

Another theory suggests that every new item we put into

(our memory knocks out an old memory.)

our memory knocks out an old memory.

(But this theory also has little or no evidence to support it.)

But this theory also has little or no evidence to support it.

(Another theory, called interference theory,)

Another theory, called interference theory,

(argues that our memories sometimes damage each other)

argues that our memories sometimes damage each other

(so that they are not usable.)

so that they are not usable.

("Loss of access" theory says that we actually don't forget anything.)

"Loss of access" theory says that we actually don't forget anything.

(It says that all our memories are still somewhere in our minds)

It says that all our memories are still somewhere in our minds

(but we just can't find them.)

but we just can't find them.

(This is currently the most popular theory.)

This is currently the most popular theory.