www.psychexamreview.com In this video I explain how signal detection theory relates to psychophysics and the study of absolute and difference thresholds. I also explain how response criteria play a role in signal detection theory and the possibility of type I and type II errors. Finally, I consider applications of signal detection theory in daily life, from detecting dangers to dating. Don’t forget to subscribe to the channel to see future videos! Have questions or topics you’d like to see covered in a future video? Let me know by commenting or sending me an email! Need more explanation? Check out my full psychology guide: Master Introductory Psychology: http://amzn.to/2eTqm5s Enable closed-captioning or find a full transcript of this video here: http://www.psychexamreview.com/signal-detection-theory-video/ ... https://www.youtube.com/watch?v=WUjwk92r-ME

www.psychexamreview.com In this video I discuss brain development and begin with the idea of infantile amnesia. Memories before about the age of 3 are very rare, suggesting that the infant brain is not yet developed to store episodic memories, though it can form other types of memories and associations. From age 3-6 our brains undergo a period of rapid progress and we develop billions more synaptic connections than needed. These ensure that needed pathways will be available, and those which are not needed are abandoned later during synaptic pruning. The environment also influences brain development and research by Rosenzweig, Krech, Bennett, and Diamond demonstrated how an impoverished environment would lead to smaller brain volume and fewer synaptic connections compared to environments which were "enriched". It seems the most enriched environment, however, is the natural environment, which provides incredible amounts of stimulation and presents endless challenges for the developing brain. Like these videos? Consider supporting Psych Exam Review on Patreon: www.patreon.com/PsychExamReview Don’t forget to subscribe to the channel to see future videos! Have questions or topics you’d like to see covered in a future video? Let me know by commenting or sending me an email! Need more explanation? Get volume 1 of my Master Introductory Psychology series here: http://amzn.to/2ENc44U ... https://www.youtube.com/watch?v=b9uivRacjMc

www.psychexamreview.com In this video I describe touch sensation and haptic perception, which refers to exploring the world by grasping. I outline the types of receptor in the skin including mechanoreceptors, thermoreceptors, and nocireceptors, and then discuss how signals are mapped out according to sensitivity in the somatosensory cortex of the parietal lobe. This mapping research was initially conducted by Wilder Penfield and can be used to create a “homunculus” or a representation of a little person in the cortex, which can be done for both the somatosensory cortex and the motor cortex. Don’t forget to subscribe to the channel to see future videos! Have questions or topics you’d like to see covered in a future video? Let me know by commenting or sending me an email! Need more explanation? Check out my full psychology guide: Master Introductory Psychology: http://amzn.to/2eTqm5s Sensory and Motor Homunculus Diagram http://willcov.com/bio-consciousness/diagrams/Homunculus%20(Topographic)%20Diagram_files/image295.jpg ... https://www.youtube.com/watch?v=lXO2FRw0-8s

This video covers 10 practice multiple choice questions on psychological disorders and includes questions related to diagnosis, symptom types, specific disorders, and more. I hope this can help you to review your knowledge and understanding, let me know if you have any suggestions for future practice and review videos! ... https://www.youtube.com/watch?v=aaVGpiBuM5E