Show:
Neuro & drugs
Human evolution
Evolution
Eye & Ear
Learning
100
What are drugs?
Substances put in the body to cause a change in the function of the body
100
What are the most modern humans called
Homo sapiens
100
What came first: Homo erectus or Homo habilis?
Homo habilis
100
Where is the cochlea located?
Inner ear
100
What is the difference between taxis and kinesis?
taxis: movement towards or away from directional stimulus kinesis: movement in response to a non-directional stimulus
200
Name 3 excitory drugs
What is Nicotine, cocaine, amphetamines
200
State 2 anatomical features humans have in common with apes
- grasping limbs, disposable thumb, large brains, similar bone structure in the arm (Pentadactyl limbs)
200
What is adaptive radiation?
When are adapted to ecological roles to avoid competition with each other
200
Which photoreceptors are found on the retina?
cones and rods
200
What is innate behavior?
A natural behavior that is passed on passively
300
Name 2 inhibitory drugs
What is alcohol, THC
300
When is K40-Ar40 dating used?
fossils older than > 100 000 years old
300
What is the difference between gradualism and punctuated equilibrium?
Gradualism – proceeds very slowly, PE – strong directional selection and rapid evolution
300
Why can't you see colours in dim light?
Cones register colour, and rods are used to see shades of grey. In the dark the rods are sensitive to the lower light levels and show shades of grey. Cones are not used in dim light
300
What is a conditioned stimulus?
Something external that influences an activity, such as a reflex.
400
What are the social effects of psychoactive drugs
withdrawl symptoms, difficulties relating to others etc.
400
What is half life?
The amount of time it takes for 1/2 the nuclei to decay into another isotope.
400
What is panspermia?
Life may have been seeded on earth by comets crashing onto earth's crust carrying microbes or amino acids or proteins.
400
What is the function of the oval window?
To reverberate sound waves into the cochlea
400
What are the three types of conditioning
Classical, operant, imprinting
500
How does THC affect brain function?
Increase the production of dopamine by binding to THC receptors, can also inhibit short term memory production
500
Why did hominid brain size increase?
change in diet and evolutionary forces
500
Explain the urey miller experiment
organic compounds were formed when 'prehistoric ocean water' was heated and the perhistoric vapours created along with methane, nitrates were shocked by electricity. After a long period of time, the 'prehistoric ocean' was filled with amino acids and nucleotides
500
What is collateral processing
Images from the right field of view is interpreted by the left hemisphere. Images from the left field of view is interpreted by the right hemisphere.
500
What two things are required for animals to learn through operant conditioning (Rats in a box)
rewards and punishments