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A forum for all of our ideas, thoughts, and links related to our PSYCH 109S course.
Blog Archive
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2007
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July
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- Can we generalize college student samples to the g...
- cross-recurrence analysis
- While reading the articles for my research project...
- The Secret Life of the Brain
- The Real Transformers
- Brain scans reveal why meditation works
- Computer program can learn baby talk
- Any connection?
- Science Friction by Michael Shermer
- Synesthesia
- Lera's Interview
- "Less is more" online
- Deep Structure Ambiguity
- Language- Koko the gorilla
- book recommendation
- lateral inhibition
- Not a false memory...
- More on False Memories
- Lexical-Gustatory Synesthesia
- False memories and brain activation
- A lot on your mind
- A use for prions?
- Eidetic (photographic) memory
- The pi guy
- More demos and info on memory processes & strategies
- question on the reading
- evolution of consciousness
- Selective Attention Experiment
- Gestalt jokesters
- More on neurons and neural networks
- Blink by Malcolm Gladwell
- Synesthesia Article
- Brain plasticity in children after hemispherectomy
- Split-brain patients in daily life
- Brain lateralization, ambidexterity, split-brain, ...
- Neurotransmission video
- Response to illusions post
- Illusions
- Book Recommendation
- More "change detection" videos
- Partial Report Experiment
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July
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4 comments:
When discussing synapses between neurons I am still a bit confused about neural networks. I do not understand how they form or what it is that makes them stronger. Also I was under the impression that the brain was one large neural network and that there was no distinction between networks. The video was very helpful because I also did not realize that some of the lifesaver came back to me after the synapses was done.
i agree the interactive video helped alot to see it. also enjoyed the candy in class though
i agree the interactive video helped alot to see it. also enjoyed the candy in class though
I'm glad the video helped! Yes, it's true that some of the "lifesaver" (neurotransmitter) returns to you (the terminal buttons) -- I didn't mention that in class since that's slightly beyond the scope of what you guys need to know about the neuron.
Neural networks form by experience and neurotransmitter activity. There are two general classes of neurotransmitters (excitatory and inhibitory) and the class of neurotransmitter sent to the next neuron affects whether or not it's turned on or off. There are projections of neurons (neural networks) throughout areas of the brain that are far-reaching, cutting across different lobes, and there are also local connections like within an area of a brain lobe.
An example of distinct neural networks is within the visual cortex (occipital lobe) -- there are neural networks that have neurons fire based on line orientation (e.g. horizontal vs. vertical). Hubel and Wiesel studied cats' neuronal firing as they looked at lines oriented at various angles and found that different neurons fired for different line orientations.
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