PSY100H1 Lecture Notes - Frontal Lobe, Intellectual Synthesis, Neuroanatomy
65
PSY100H1 Full Course Notes
Verified Note
65 documents
Document Summary
Consciousness: something that you can"t find in the parts, they are needed, but consciousness does not exist in any of them, it emerges from all of the parts together. A million ants is a viable community of organisms that exhibits coordinated, self- directed behaviour. 100 billion neurons creates the whole complexity of a person. Nothing is external, the consciousness is an interdependent thing. Afferent neurons: go from body to brain, give sensory information. Interneuron: process all the information between afferent and efferent neurons. Interneurons vastly outnumber motor and sensory neurons (several million of each compared to ~100 billion interneurons) Dendrites: receive information (receptor cites) from other neurons and transmit towards the cell body, neurotransmitters either add negative charge (make the neuron less likely to fire) or add positive charge (more likely to fire) Synapse: space between dendrites and axon terminals, contain neurotransmitters. Cell body: keeps the neuron alive and determines whether it will fire.
