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Description
Neil Chalmers introduced the programme which will examine the processing of vision in the brain. Shot of a diagram showing the main pathways of the visual process in the human brain. Chalmers expla...ins. Chalmers shows an experimental set up for finding out the properties of neurones in the lateral gerriculate and the cortex by single cell recording. Chalmers explains. Diagram of the experimental set up aids. J.M. McKay at the Dept. of Anatomy, Cambridge Univ. simulates an actual experiment which recorded the single cell activity of the lateral geniculate of the brain of a cat. In this case the skull of a cat is used and the data was recorded in earlier experiments. J.M. McKay explains the experiment each step of the way. Neil Chalmers aids in the experiment by plotting the 'on' and 'off' responses on the screen. Chalmers sums up the main points of the experiment. He uses a diagram and oscilloscope as aids. Neil Chalmers introduces the experiment by Colin Blakemore at the Cambridge University Physiology Department. The experiment is on the visual cortex but is similar to that done on the lateral geniculate. Chalmers points out some of the differences in technique. Colin Blakemore explains his experiment and experimental apparatus. He measures the response of single neurones in the cat's visual cortex to light. Patterns shown to the cat are seen on a television screen and the animal's response on the oscilloscope. Neil Chalmers uses an animated diagram to explain the differences in response between the neurones of the visual cortex and those of the lateral geniculate. Chalmers lists some of the things the model does not explain about cortical response such as the direction of movement factor. He asks students to think about this. Chalmers discusses some shortcomings of these experiments such as knowing whether the responses found have any significance to the animal. He goes on to discuss the link between physiology, and psychology to answer these questions.
Neil Chalmers introduced the programme which will examine the processing of vision in the brain. Shot of a diagram showing the main pathways of the visual process in the human brain. Chalmers expla...ins. Chalmers shows an experimental set up for finding out the properties of neurones in the lateral gerriculate and the cortex by single cell recording. Chalmers explains. Diagram of the experimental set up aids. J.M. McKay at the Dept. of Anatomy, Cambridge Univ. simulates an actual experiment which recorded the single cell activity of the lateral geniculate of the brain of a cat. In this case the skull of a cat is used and the data was recorded in earlier experiments. J.M. McKay explains the experiment each step of the way. Neil Chalmers aids in the experiment by plotting the 'on' and 'off' responses on the screen. Chalmers sums up the main points of the experiment. He uses a diagram and oscilloscope as aids. Neil Chalmers introduces the experiment by Colin Blakemore at the Cambridge University Physiology Department. The experiment is on the visual cortex but is similar to that done on the lateral geniculate. Chalmers points out some of the differences in technique. Colin Blakemore explains his experiment and experimental apparatus. He measures the response of single neurones in the cat's visual cortex to light. Patterns shown to the cat are seen on a television screen and the animal's response on the oscilloscope. Neil Chalmers uses an animated diagram to explain the differences in response between the neurones of the visual cortex and those of the lateral geniculate. Chalmers lists some of the things the model does not explain about cortical response such as the direction of movement factor. He asks students to think about this. Chalmers discusses some shortcomings of these experiments such as knowing whether the responses found have any significance to the animal. He goes on to discuss the link between physiology, and psychology to answer these questions.
| Module code and title: | SDT286, Biological bases of behaviour |
|---|---|
| Item code: | SDT286; 06 |
| First transmission date: | 18-03-1972 |
| Published: | 1972 |
| Rights Statement: | |
| Restrictions on use: | |
| Duration: | 00:24:18 |
| + Show more... | |
| Producer: | John Groom |
| Contributors: | Neil Chalmers; Jenny McKay |
| Publisher: | BBC Open University |
| Keyword(s): | Cat brain; Cortex; Lateral geniculate; Neurones; Physiology/psychology; Vision processing |
| Master spool number: | 6LT/70365 |
| Production number: | 00521_2145 |
| Videofinder number: | 2092 |
| Available to public: | no |
