Dangerous Minds

Dangerous Minds is a quest and achievement/trophy in Fallout 4.

Quick walkthrough
After completing Reunions the player can travel, with Nick Valentine, Piper, or by themself to the Memory Den. Talk to Doctor Amari, enter Kellogg's memories and go to the sixth memory fragment. Exit the lounger and finish the quest.

Bugs

 * Sometimes after leaving the quest in the Memory Den, one can get stuck with the memory lighting effect. This causes a desaturation of colors, and turning many things grey or blue, as well as adding a distinct blur to the foreground.
 * Sometimes after leaving the Memory Den, one can be stuck in the quest, without it finishing, and no way to go back to the memories in order to complete the quest objective: "Explore Kelloggs Memories." Valentine will be missing, and Doctor Amari will be "Busy". A possible fix is to attack Doctor Amari.
 * Sometimes the quest will not begin after the conversation with Nick Valentine and Piper. Reverting to a save before the conversation may help.
 * Sometimes after speaking to Doctor Amari and being asked to sit in the lounge chair, when going to sit in the chair one are unable to do so since "You cannot complete this action in combat" despite not being in combat with anyone. This is on PC and may also be on both consoles.
 * Sometimes, power armor worn by Valentine can change ownership to the NPC after exiting the lounge chair. If the player tries to enter the power armor, a "steal power armor" prompt will replace the "enter power armor" prompt. Valentine will turn hostile if entered.