6. Explain what is meant by the word Positive Correlation.
A relationship between two variables in which an variable either increases or decreases at the same time.
A relationship between two variables in which an increase in one variable is associated with a decrease in the other
7. What was the aim of Raine et.al (1997)?
The aim of the study was to see whether there was different brain functioning in a group of murderers compared to a control group of participants.
They aimed to invetigate whether MAOA gene affected aggression when environmentally provoked.
8. Explain stage one of sleep.
Stage one of sleep is light sleep which can be easily woken, there is slow eye movements and twitching.
the brainwaves are slower and there is mainly delta waves, the eye movements stop, there is a burst of brain activity.
9. Define the term Hindbrain.
The hindbrain consists of pons, medualla and cerebellum. It is a continuation of the spinal cord carrying onto the bottom of the brain. The cerebellum controls movement and motor coordination
Region of the developing vertebrate of the brain that is composed of the tectum and tegmentum.
10. Explain what is the function of the Peripheral Nervous System.
The primary function of the PNS is to connect the brain and spinal cord to the rest of the body and external environment. cord
Connects the CNS with the senses composed of sensory pathways and motor nerve pathways.
