Har doktorens minne återställts?

Läkare är vanligtvis lite luriga när de regenererar. Han blir bättre.

Hjärnan är muddled såväl som kroppen, och tillfällig amnesi är typisk. Det är ett mildt regenereringssymptom, när de går. Andra symptom har inkluderat paranoia, våld och koma.

Tid för ett uppdaterat svar efter serie 8 och 9.

Nej, hans minne har inte återställts.

• Även i den allra första episoden efter regenerering, när han fortfarande är (som @BESW sätter den) lite knäppt, är hans minnen av tidigare regenereringar fortfarande kvar, bara lite förvirrad och svår att nå eftersom han bara nyligen regenererade:

  DOCTOR: SS Marie Antoinette. Out of control repair droids cannibalising human beings. I know that this is familiar, but I just can't seem to place it.
  HALF-FACE MAN: How would you kill me?
  DOCTOR: Sister ship of the Madame De Pompadour. No, not getting it.

  -- Deep Breath (Series 8 Episode 1)

  Detta är en hänvisning till Flickan i eldstaden (Serie 2 Episod 4), ett äventyr som doktorn hade under sin tionde regenerering.

• I In Dalek (Serie 8 Episode 2), känner han klart och kommer ihåg vad Dalek är.

• På samma sätt, i Serie 8-finalen, känner han till och minns vem mästaren är och vilka cybermen är.

• På samma sätt, i Trollkarlens lärling (Serie 9 Episode 1), känner han till och minns både Davros och planeten Skaro. Vi ser även inspelningar av sina tidigare möten:

  DAVROS: Then why are you here? Did you miss our conversations?
  (Davros painfully throws a switch to start a series of clips on a small wall screen.)
  DOCTOR 4 [Genesis of the Daleks]: If you had created a virus in your laboratory ...
  DOCTOR 5 [Resurrection of the Daleks]: I'm not here as your prisoner, Davros ...
  DOCTOR 7 [Remembrance of the Daleks]: Unimaginable power! Unlimited rice pudding!
  DOCTOR 10 [Stolen Earth]: Everything we saw. Everything we lost.
  DOCTOR 6 [Revelation of the Daleks]: But did you bother to tell anyone they might be eating their own relatives?
  DOCTOR: Yes, yes, yes, okay, you've made your point.
  DAVROS: Have I?
  DOCTOR 4 [on screen]: If someone who knew the future pointed out a child to you, and told you that that child would grow up totally evil, to be a ruthless dictator who would destroy millions of lives, could you then kill that child?
  (The Doctor turns off the recordings.)
  DOCTOR: I get the point.

  -- The Magician's Apprentice (Series 9 Episode 1)

• I The Girl Who Died (Serie 9 Episode 5) kommer han ihåg en särskild händelse från sin tionde regenerering:

  CLARA: Doctor, what's wrong with your face?
  DOCTOR: I think I know why I chose it.
  DOCTOR [memory]: It's like I'm trying to tell myself something.
  DOCTOR: I think I know what I'm trying to say.
  DONNA [memory]: (to Doctor 10) Just someone. Not the whole town. Just save someone.
  DOCTOR 10 [memory]: Come with me.
  DOCTOR: I know where I got this face, and I know what it's for.

  -- The Girl Who Died (Series 9 Episode 5)

• I Zygon Invasion / Inversion (Serie 9 Episodes 7-8) kommer han ihåg tidskriget och händelserna på 50-årsjubileumet Doktorns dag :

  DOCTOR: There are safeguards beyond safeguards. I did this on a very important day for me and this ceasefire will stand. [...] I don't understand? Are you kidding? Me? Of course I understand. I mean, do you call this a war? This funny little thing? This is not a war! I fought in a bigger war than you will ever know. I did worse things than you could ever imagine. And when I close my eyes I hear more screams than anyone could ever be able to count! And do you know what you do with all that pain? Shall I tell you where you put it? You hold it tight till it burns your hand, and you say this. No one else will ever have to live like this. No one else will have to feel this pain. Not on my watch!

  -- The Zygon Inversion (Series 9 Episode 8)

• I Serie 9-finalen har han behållit många av hans minnen av Gallifrey, inklusive ladugården där han växte upp, klostren, Rassilon och hur man hanterar honom, och viktigast av allt hur han stal TARDIS-vägen tillbaka i hans första regenerering:

  DOCTOR: A long time ago, there was a student at the Academy. He got in here, disappeared for four days. Showed up in a completely different part of the city. Said the Sliders talked to him, they showed him the secret passage out. And we just need the code.
  CLARA: What, and the kid told you the secret?
  DOCTOR: Ah, no, he didn't tell anyone anything. He went completely mad. Never right in the head again, so they say.
  CLARA: Okay, that's encouraging.
  DOCTOR: The last I heard, he stole the moon and the President's wife.

  -- Hell Bent (Series 9 Episode 12)

  Han kommer också ihåg ett tidigare äventyr med Amy och Rory, från sin elfte regenerering:

  DOCTOR: I think that we were here, you know? I think that we were here together once. I'm sure I'll remember. Over here.
  (The tables by the wall.)
  DOCTOR: Stupid Doctor. Amy and Rory. It was Amy and Rory.

  -- Hell Bent (Series 9 Episode 12)

• Slutligen, i den senaste episoden (julaftonet 2015) känner han genast till floden och det faktum att de var gifta och givetvis hennes djurfrasfrase:

  DOCTOR: Do I know you?
  RIVER: You most certainly do not.
  (She throws back the hood. The Doctor smiles broadly.)
  RIVER: And now that you've met me, you'll do your very best to forget me.
  DOCTOR: River!
  NARDOLE: Oi! Doctor Song to you. Sometimes Professor, but mainly Doctor.
  RIVER: Don't use my name. Ever. How do you know me?
  DOCTOR: Well, it's a tiny bit complicated. People usually need a flowchart.
  RIVER: It doesn't matter. If either of you use my name again, I will remove your organs in alphabetical order. Any questions?
  DOCTOR: Which alphabet? (grin fades) Sorry, you really didn't want these questions, did you?
  RIVER: This way. We don't have a lot of time.
  (She leads the way into the saucer.)
  DOCTOR: What seems to be the problem?
  RIVER: My husband.
  DOCTOR: Your husband?
  RIVER: Didn't you read my message? My husband, yes. My husband is dying.
  (The Doctor stands still.)
  NARDOLE: Something wrong?
  DOCTOR: I think I'm going to need a bigger flowchart.

  [...]

  (She meets the Doctor's eyes. He smiles and the penny finally drops for her. Long pause.)
  DOCTOR: (sotto) Hello, sweetie.

  -- The Husbands of River Song

Så ja, han verkar komma ihåg allt från sina tidigare förnyelser.