Although simply adding results in the same answer, people who can do both display a greater freedom of mental functioning.

The test can also be used to assess brain damage and general mental functioning.

But it is important not to rush into too neat or speedy a conclusion about another person's main and natural form of mental functioning.

The social origins of individual mental functioning: Alternatives and perspectives.

The effects of sleep deprivation appear to reduce mental and physical functioning.

Some sleep disorders are serious enough to interfere with normal physical, mental and emotional functioning.

Psychology is the scientific study of human behavior, mental functioning, and experience.

Toxins may accumulate in the blood and eventually affect mental functioning.

That's going to have a significant impact eventually on your mental functioning.

All the subjects took five tests of mental functioning.