There are 25 million to a billion different T-cells in your body. Each cell has a unique T-cell receptor that can fit with only one kind of antigen, like a lock that can fit with only one shape of key. Antigens and receptors work a lot like a lock and key. Each of the 25 million to a billion different T-cells fit with a different shape of antigen.
Motivating operation. Motivating operation (MO) is a behavioristic concept introduced by Jack Michael in 1982. It is used to explain variations in the effects in the consequences of behavior. Most importantly, a MO affects how strongly the person is reinforced or punished by the consequences of their behavior.
Leave a reply. Elaborative Rehearsal. Elaborative rehearsal is a way to encode information. It involves transferring information from short-term memory to long-term memory by making the information meaningful in some way. The information can be made meaningful by relating it to prior knowledge or making the information meaningful in a personal way. Elaborative rehearsal can make the long-term memory a lot stronger, meaning that one is more likely to recall the information at a later time. Elaborative rehearsal can be very useful when studying for an exam, because you are more likely to get a good grade on the exam.