Dangerous Minds

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

Detailed walkthrough
Lounging Around At The Memory Den

Kellogg has kindly allowed you to use a bit of his brain—the cybernetic brain augmenter —to delve deep into his memories. Gather it from Fort Hagen (as part of the previous quest, Reunions) if you haven't already.

Follow Nick Valentine’s advice and locate Doctor Amari. This involves a trip into Boston, through the ruins of the Financial District, to the rough-and-tumble fortified settlement of Goodneighbor. Greet the locals, then head to the Memory Den. Irma owns this establishment.

Down in the basement, converse with Doctor Amari. After Nick Valentine volunteers to help out, you’re invited to sit in the lounger to experience snippets of Kellogg’s past.

Bugs

 * 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.
 * Sometimes, the character might be considered in combat, making sitting impossible. To fix this, fast travel to a safe location then return Memory Den.

Mentes peligrosas