If Our Ancestors' Mental Abilities Increased in Parallel with an Increase

question 60

Multiple Choice

If our ancestors' mental abilities increased in parallel with an increase in brain size,why has the size of our brain not continued increasing?

• A) the human skull is currently as large as the exoskeleton will support
• B) factors other than the brain also determine human capabilities
• C) although humans continue to evolve,language,memory,and attention are fully developed
• D) this evolutionary mechanism is still at work;it just evolves more slowly than previously thought

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Definitions:

Negative Feedback

A process where the output of a system dampens or reduces the process or input, often used to maintain stability in systems or environments.

Multiple Baselines

A research design in behavior analysis that shows the effect of an intervention across different settings, behaviors, or individuals, without the need for a control group.

Single Subject Design

Single subject design is a research method used in the behavioral sciences where experiments are conducted with a single subject, or one subject at a time, to ascertain the effect of an intervention.

Time-Series Design

A research method that involves repeated observations of the same variables over a period of time, often used to assess the impact of interventions.