asad118

hello friends, im trying to understand the very basics related to the function of temporal lobe of the human brain. more specifically i would like to understand the parts related to hearing and speech recognition like wernicke's and breca's area. i know about the functions of these parts but i cant find information regarding how these parts work or how they process information. what kind of receptors and neurotransmitters are involved? what causes excitation and de-excitation of neurons in this are? which harmones effect the function of these parts? i am unable to find this information through google thats why im here. plz reefer me some book or a link of any website where i can get such details. thanks.

dear users, i have read that in any metal, all the positive and negative charges are randomly scattered. as a result these charges cancel the magnetic feild of each other. but when an electric coil is warped around a metal piece and electric current is passed through it, these charges get aligned, in this way they dont cancel the magnetic field of each other and that metal convert into a magnet. i would like to ask two questions. 1. is my above explanation correct? 2. what is actually meant by alignment? does it mean that the positive and negative charges move in opposite directions? does it mean that the electromagnetic effect pull opposite charges away from each other?