Ib Psychology // Biological Approach Test 48 Correctly Answered Questions Latest Update

What is meant by lesioning? {Ans: Lesioning is when a specific part of the brain is intentionally damaged and behavioral functions are then observed.}What gland secretes adrenaline? {Ans: The adrenals gland secretes adrenaline}What are the characteristics of a PET scan? {Ans: It can record ongoing activity in the brain rather than produce just one static image, however there is a high cost associated with the necessary equipment and its maintenance. Localization is established after individuals consume or are injected with radioactive glucose that can bind to different types of brain matter. Allows researchers to see regions in the brain that have reduced levels of activity vs. increased. Does not specify specific brain parts so ecological validity is low.}What are the characteristics of an fMRI scan? {Ans: fMRI's can record brain signals w/o the risk of radiation and are one of the most common brain-mapping techniques because of the relatively wide availability of the machines.It is a 3-D image that shows structure and function of increased activity. Localization is established with an overlay of an MRI which shows structures. Detects changes in levels of neural activity and more detailed than a PET scan.}What gland secretes cortisol?