Which of the following is NOT a philosophical underpinning of behaviorism?

At what age would it be appropriate to start to introduce solid foods such as chunks of soft fruit and cooked vegetables?

a. 2 months b. 4 months c. 5 months d. 8 months

Dreamless slow-wave NREM sleep increases after physical exertion, while REM sleep increases with daytime emotional stresses

Indicate whether this statement is true or false