https://padlet.com/taylermartin/p3sqy840zcqgq7lf Use this Padlet to complete the interactive google slide en-us 2020-10-11 19:20:40 UTC 2020-10-11 19:44:06 UTC hello@padlet.com taylermartin https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819953501 A detailed image of the structure (size and shape) of tissues, organs, and bones. Also shows the presence of disease.]]> 2020-10-11 19:26:58 UTC https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819953501 taylermartin https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819954010 A person lies still in an MRI machine, which surrounds the body with a magnetic field and emits radio waves. Hydrogen atoms in the water of tissues and bones absorb and then release the energy from the radio waves. A computer maps and measures these changes to create an image. Changes in the size of tissues (such as from diseases like cancer that cause tumors) can increase the amount of water in different parts of the body, which can be detected by MRI scans.]]> 2020-10-11 19:27:32 UTC https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819954010 taylermartin https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819954361 MRI scans of the brain have shown that people who have been using drugs for a long time have a smaller prefrontal cortex than people who have not been using drugs. The prefrontal cortex is the area where decision making occurs.]]> 2020-10-11 19:28:03 UTC https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819954361 taylermartin https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819956407 2020-10-11 19:30:38 UTC https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819956407 taylermartin https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819957070 2020-10-11 19:31:25 UTC https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819957070 taylermartin https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819957221 Areas of the brain that are active during a task.]]> 2020-10-11 19:31:36 UTC https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819957221 taylermartin https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819957721 A person lies in an MRI machine while doing an activity such as looking at an image, hearing a sound, laughing at something funny, or completing a puzzle. The areas of the brain that are active during the behavior have increases in blood flow and blood oxygen levels. A computer analyzes these changes to map brain function.]]> 2020-10-11 19:32:12 UTC https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819957721 taylermartin https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819958664 In studies where adolescents played a game to earn rewards, their brain scans showed higher activity in the area of the brain that processes motivation and pleasure compared with the area of the brain that guides thoughtful decision making (the prefrontal cortex). Scientists think this imbalance in activated brain regions may lead teens to focus more on the possible rewards of a decision than on any drawbacks. This could increase a person’s risk for using drugs.]]> 2020-10-11 19:33:15 UTC https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819958664 taylermartin https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819959889 2020-10-11 19:34:52 UTC https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819959889 taylermartin https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819960453 The brain and body at the cellular level.]]> 2020-10-11 19:35:38 UTC https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819960453 taylermartin https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819960710 PET scans use radioactive chemicals, called radiotracers, that are injected into the body. The radiotracers go to different areas depending on the chemical that is used. The PET machine detects the radiotracers and computer programs use colors to show their location.]]> 2020-10-11 19:35:56 UTC https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819960710 taylermartin https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819961145 Dopamine is the brain chemical that helps us feel pleasure. By following radiotracers for dopamine receptors, PET scans have shown that using drugs heavily reduces the number of these receptors. Fewer receptors indicates less dopamine activity in the brain. This finding helps explain why people addicted to drugs experience less pleasure from everyday activities. They begin to crave the drug to get their dopamine activity back up to normal.]]> 2020-10-11 19:36:27 UTC https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819961145 taylermartin https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819962128 2020-10-11 19:37:39 UTC https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819962128 taylermartin https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819962998 Brain wave patterns.]]> 2020-10-11 19:38:46 UTC https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819962998 taylermartin https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819963341 The practice of placing electrodes on a subject’s scalp in order to non-invasively measure the electrical activity of the brain. This process is used to determine if someone has a issue with their brain. Usually, the EEG is used to try and locate the causes of seizures, but it can be used to try and find the causes of other issues like comas, tumors, confusion, strokes, and memory problems.]]> 2020-10-11 19:39:14 UTC https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819963341 taylermartin https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819963803 Researchers in a sleep lab spend the semester recording the EEG activity of both insomniac and normal subjects in order to learn more about sleep disorders.]]> 2020-10-11 19:39:48 UTC https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819963803 taylermartin https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819965164 x-ray of the outer brain structure]]> 2020-10-11 19:41:32 UTC https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819965164 taylermartin https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819965414 During a CT scan the subject lies on a table that slides in and out of a hollow, cylindrical apparatus. An x-ray source rides on a ring around the inside of the tube, with its beam aimed at the subjects head. After passing through the head, the beam is sampled by one of the many detectors that line the machine’s circumference. Images made using x-rays depend on the absorption of the beam by the tissue it passes through. Bone and hard tissue absorb x-rays well, air and water absorb very little and soft tissue is somewhere in between. Thus, CT scans reveal the gross features of the brain but do not resolve its structure well.]]> 2020-10-11 19:41:52 UTC https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819965414 taylermartin https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819966313 Neuroscientists/biologists would use a CT scan to detect a brain tumor.]]> 2020-10-11 19:42:51 UTC https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819966313 taylermartin https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819967206 2020-10-11 19:43:57 UTC https://padlet.com/taylermartin/p3sqy840zcqgq7lf/wish/819967206