The Brain: Neuroplasticity and Tools of Discover 1.4a

What is neuroplasticity?

The brain's ability to change and adapt by forming new neural connections

How does neuroplasticity help humans adapt?

It lets the brain reorganize and strengthen with practice

What is phrenology?

A debunked idea linking skull bumps to traits

What are the three levels of analysis in the biopsychosocial approach?

Biological (genetics), Psychological (emotions, learned experiences), and Social-Cultural (influence of society).

How do neurons communicate?

They conduct electricity and send chemical messages across synapses.

What is an EEG, and what does it measure?

measures waves of electrical activity across the brain’s surface, often using a cap with electrodes.

What is a PET scan used for?

It shows brain activity by depicting areas’ glucose consumption, highlighting active regions during tasks.

How does an MRI work, and what does it show?

It uses magnetic fields and radio waves to create images of soft tissue, showing brain anatomy.

What is the purpose of an fMRI?

To reveal brain activity and blood flow by comparing successive MRI scans

What is optogenetics?

A technique allowing scientists to control individual neurons' activity using light

Why is the brain’s wiring described as cross-lateral?

Because the right side of the brain controls the body's left side and vice versa