Unit 3.2 Psychology Reading Hubel & Wiesel, 1979

Brain mechanisms of vision by Hubel and Wiesel (1979) investigated the architecture of the brain. What specific aspect of the brain did they study?

• parietal lobe

• visual cortex

• cerebellum

• temporal lobe

What ethical implications would have been important for their particular study?

• Voluntary participation

• Debriefing conducted

• Animal rights ensuring no harm

• The right to withdraw

Hubel and Wiesel won a nobel prize for their discoveries in

• neuroscience

• psychology

• psychiatry

• science

What did Hubel & Wiesel use to enable them to describe the key parts of the brain used in visual perception?

• Dissections of brains

• X-rays

• ECGs

• Cortical mapping projections

What was Hubel & Wiesel's main finding in regards to the visual cortex?

• Visual cortices process images by attaching experience and cognitions to them

• Visual cortices are responsible for all visual perception

• Visual cortices only work locally on portions of what is seen

• Visual cortices do not play a role in visual perception

What is one limitation of Hubel & Wiesel's research?

• They only looked at cats

• They had a small sample size

• The validity and reliability of their research has not been supported by current technology

• Their research does not consider the most-up-to-date neuro-structural information

Which aspect within the process of visual perception cannot be explained using Hubel & Wiesel's research

• reception

• perception

• transmission

• selection

Broadly, what can be said about the visual cortex?

• There are particular stimuli that turn neurons on and off

• No stimuli is needed for neurons to turn on

• neurons work independently of one another

• the layers of the cortex have hundreds of neurons

The main subject of the research discussed in the paper "Brain mechanisms of vision" was....

• a cat

• a human

• a monkey

• a rat

In replicating Bernice Grafstein's 1971 work, Hubel and Wiesel found that

• their first attempts yielded dismayingly negative results

• monkey's produced different results to mice

• they were clearly able to trace a path all the way to the cortex

• Grafstein's work lacked reliability