"Positive" and "negative" in reinforcement don't mean "good, pleasant, desired" and "bad, unpleasant, not desired". They mean "something was added" and "something was taken away". Better names would be "additive" and "subtractive".
The term for "good, pleasant, desired" is "reinforcement", for "bad, unpleasant, not desired" is punishment.
So:
Positive reinforcement --> Behaviour leads to addition of pleasurable stimulus. Eg. Press button, receive food.
Negative reinforcement --> Behaviour leads to removal of unpleasant stimulus. Eg. Press button, persistent loud noise is muted.
Positive punishment --> Behaviour leads to addition of unpleasant stimulus. Eg. Press button, loud noise begins.
Negative punishment --> Behaviour leads to removal of pleasant stimulus. Eg. Press button, food is taken away.
"Positive" and "negative" in reinforcement don't mean "good, pleasant, desired" and "bad, unpleasant, not desired". They mean "something was added" and "something was taken away". Better names would be "additive" and "subtractive".
The term for "good, pleasant, desired" is "reinforcement", for "bad, unpleasant, not desired" is punishment.
So:
Positive reinforcement --> Behaviour leads to addition of pleasurable stimulus. Eg. Press button, receive food.
Negative reinforcement --> Behaviour leads to removal of unpleasant stimulus. Eg. Press button, persistent loud noise is muted.
Positive punishment --> Behaviour leads to addition of unpleasant stimulus. Eg. Press button, loud noise begins.
Negative punishment --> Behaviour leads to removal of pleasant stimulus. Eg. Press button, food is taken away.