7. Neural networks are inspired by firing neurons in the brain, and 
consist of many units that activate depending on inputs and 
numerical parameters learned and adjusted from training examples. 
Convolutional nets are a specific type of neural net that slide learned 
filters over images and are well-suited for visual applications. 

8. Reddy, S. (1983). ReddyNet-7: Use of neocognitrons in detecting 
visual cognitohazards. Terminal: an SCP Foundation Journal, 4(34), 
1-22. Retrieved fromSCP Foundation Research Database. 
(Accession No. 8547364) 

9. Reddy, S., Balasubramanian, R., (2015). Containment of SCP- 
using backpropagation through time.Terminal: an SCP Foundation 
Journal, 18(56), 46-61. Retrieved fromSCP Foundation Research 
Database. (Accession No. 6356765) 

10. Reinforcement learning essentially rewards and penalizes an 
algorithm for taking good or bad actions. 

11. Reddy, S., Hafizyar, A., Wang, M., et al. (2011). Detection of 
visual memetic hazards using semantic segmentation in a deep-Q 


network. Terminal: an SCP Foundation Journal, 15(73), 20-47. 
Retrieved fromSCP Foundation Research Database. (Accession No. 
4632532) 

12. Simonyan, K., Vedaldi, A., Zisserman, A. (2013). Deep inside 
convolutional networks: Visualizing image classification models and 
saliency maps.arXiv preprint arXiv:1312.6034 

13. Vukovic, V., Reddy, S. (2011). Detecting multiple types of visual 
hazards using deep reinforcement learning and an$\epsilon$-greedy 
approach. Terminal: an SCP Foundation Journal, 15(74), 35-67. 
Retrieved fromSCP Foundation Research Database. (Accession No. 
3755432) 

14. Szegedy, C., Wojciech, Z., Sutskever, S., et al. (2013). Intriguing 
properties of neural networks. arXiv preprint arXiv:1312.6199 


SCP-3335: The Hole in My Head Where My Mind 
Used to Be 


Item #: SCP-3335 
Object Class: Keter 


Special Containment Procedures: Due to the popularity of 
SCP-3335, it is currently considered uncontained in certain dense 
population centers of the world. 


Foundation agents inserted into the various underground trade 
markets of the substance are to monitor the use and distribution of 
SCP-3335. 


Clandestine laboratories are to be expunged of all compounds 
bearing resemblance to the anomalous chemical structures seen via 
SCP-3335's gas chromatography and mass spectrometry testing. 
This is done to minimize population exposure to the effects of the 
compound and regulate any further synthesis of the substance. 


Sensationalist media is to be distributed through routine drug scare 
tactics, while other outlets are to be manipulated in order to mitigate 
further damage to major populace centers. This method of 
containment has proved successful in most situations, as the usual 
"War on Drugs" methods are currently useful in self-containing the 
compound itself. Amnestic application has proved capable of 
handling most other cases. 


Asof // ,SCP-3335's global trade markets and laboratories have 
been reduced by approximately 85% from 1974. Despite this, there 
are assumed to be facilities still producing SCP-3335 to this day. 


Foundation interception of large-scale distribution is considered a 
top priority at this time. 


Description: SCP-3335 is an off-white compound similar in 


appearance to flour. It is a hallucinogenic substance of 
Arylcyclohexylamine structure, with effects similar to other NMDA 
Antagonists, specifically those of phencyclidine (PCP) and its 
derivatives. 


Analysis of SCP-3335 samples have proven to be not useful, many 
of which have resulted in conflicting or inconclusive outcomes. 
Material Safety Data Sheets (MSDS) procured during testing have 
effectively culminated in various erroneous information. These 
outcomes imply an inconsistent or variable chemical structure. It is 
unknown how synthesis of this compound is formed, and is likely 
anomalous in nature. 


Since the time of its surfacing in human populaces, over % of the 
Earth's population have willingly consumed SCP-3335 for 
recreational purposes. 


SCP-3335 exhibits a large array of effects, most of which are 
common to substances of its kind. These effects include, but are not 
limited to: 


* Euphoria/Sense of serenity 

¢ Closed and open-eye visual hallucinations 

* Analgesia, numbness 

* Significant change in perception of time (Dilation and 
constriction) 

Confusion/disorientation, delirium 

* "Hole" experiences! 

Intense mind-body dissociation, out-of-body experiences 
Ambulatory psychotic behavior 

¢ Paranoia 

« Nausea, vomiting 

« Psychological dependency/addiction, compulsive dosing 
¢ Frightening or untimely distortion or loss in sensory perception 


However, SCP-3335 exhibits henceforth unrecorded anomalous 
properties that deviate highly from those of its more explainable 
analogues, including personality changes, photosensitivity and 
hematophagy (drinking of blood) of themselves or others with 
SCP-3335 still present in the bloodstream, so as to mimic the effects 
of titration and propagation of the effects of the compound. 


Toxicity reports of affected individuals reveal a consistent low-level 
blood content of SCP-3335 that does not appear to dissipate nor 

filter out of the body through the kidneys. Dialysis treatments have 
shown to be ineffective in hindering the production of SCP-3335 in 
the body. It is theorized that SCP-3335 may cause lasting changes 
in physiology that aid in the endogenous synthesis of the chemical. 


Due to the inability to remove SCP-3335 from the bloodstream and 
treat affected individuals, widespread use supports theorized 
potential for large-scale LK-Class Personality Transmutation Events. 
As such, experimentation and thaumaturgic use is currently halted, 
per O5 request. 


Incident Log 3335.1: On // , civilians in the New York City 
area that were known users of SCP-3335 reportedly stopped 
moving, and stared at a nearby floor. Subjects that proceeded to 
walk to this area immediately collapsed without warning. All affected 
individuals have remained comatose since the event. 


Incident Log 3335.2: More individuals continue to experience this 
phenomenon. O05 council holds a conference after the number of 
unconscious individuals reaches on // _ .Widespread amnestic 
dispersal considered if situation worsens. 


Addendum 3335.1: Interview Logs 
+ Access Interview Log 3335-1A 
Interview Log 3335-1A 
Interviewee: Steven 


Interviewer: Agent Francis __, stationed 
NYPD Officer 


Notes: This interview was conducted after a 
Foundation-staged raid of , a popular 
nightclub in downtown NYC, several days after 
the events of Incident 3335.1. Apprehended 
individual was a known source of SCP-3335, 
although said person was not involved in 


synthesis or large import distribution of 
SCP-3335. 


Interviewee was highly distressed upon 
Foundation interception, but was released 
after application of Class-B Amnestics post- 
interview. 


[BEGIN LOG] 


: Look, man, | don't know anything about 
this stuff, okay? | was told it was still legal in 
the area, yeah? | need a lawyer or something, 
right? Someone give me a lawyer. 


Agent Francis: Hey, kid. You aren't in any 

trouble here. | just gotta ask you a few 

questions about what you were selling over at 
. Plain and simple. 


: Yeah, okay. You're the good cop, right? 
Nice uniform for an officer, but I'm not saying 
anything. 


Agent Francis: (sighs) Look, I'm serious, you 
answer my questions, you walk free this 
evening. Otherwise, I'll have to throw you ina 
tank for the night. You don't have any prior 
convictions, you're mostly clean otherwise. 
This can be over in an hour if you just answer 
a couple of questions. I'm not here to charge 
you for distribution. 


: (pauses) You're serious? 


Agent Francis: Yeah. So, let me get this 
straight. You got this, uh, what are you kids 
calling it on the streets now? 


: My boy's over in the Bronx calling it 
"Transcendence' or some shit. | don't know 


much about it, okay? 


Agent Francis: Alright. And have you tried the 
drug itself? 


: Yeah, man. | know that's not illegal. My 
body, my choice, right? 


Agent Francis: Okay. Like | said, no trouble 
for you tonight. It's your lucky day. So, tell me, 
what's this stuff like? 


: Uh, It's hard to explain. Not to be that 
guy, but you have to try it to Know what it's 
like, okay. It's not easy to describe. It's weird 
shit, man. Crazy stuff. 


Agent Francis: Just do your best. | was your 
age once, you know. 


: (scoffs) Yeah, | bet. Trying to get all 
chummy with me, is that it? You think I'm 
gonna relate, y'all tried the same shit when 
you were young, yeah? Well, not this. | know 
the scene, some of you been around the block 
before you got your badge, | get it. But this is 
something new. They got scientists or some 
shit working on this stuff. | don't know nothing 
about nothing when it comes to cooking up this 
designer shit. 


Agent Francis: Right. So, you cannot provide 
any details as to what your average 
experience is like? 


: (laughs) | told you, | can't put it into 
words. They had this shit called 'roflcoptr’2, 
lame-ass name if you ask me, but that stuff 
was fire. It was like you were walking around 
with your body just laying there, ya' know? It's 
kinda like that. 


Agent Francis: Okay. Well, what made you 
start dealing this stuff? What does it have over 
the other drugs that are being sold out there 
on the streets? 


: | don't know, man. It's got this magical 
quality to it. Warm. Took it once and it was like 
| went to another place entirely. With that rofl 
shit, you Knew you was fucked up. Knew it was 
a drug, right? This was something different. 
Same deal, | saw myself layin’ there on that 
fuckin’ futon. But it was like | could walk away 
and never come back. Nice feeling. Don't have 
to deal with none of this shit that's happening 
out there in the world right now. You got that 
free roam. My body could be cut to shit and | 
could care less because, fuck it, right? 


Agent Francis: Sounds nice. 


: Yeah it does. But you snap back after a 
coupla’ hours, you know? Pull you right back 
in. Like a dream, | guess. Gotta wake up 
sometime. 


Agent Francis: | understand. Now, a couple 
of people have been found comatose because 
of this drug, you know anything about that? 


: Yeah, not my people though. Nobody 
got hurt from my deals, probably some asshole 
who cut it with something nasty, yeah. 


Agent Francis: Actually, all of their tox reports 
came back and there was nothing unusual in 
their systems. So, what's the difference? 


: Fuck if | Know, man. The stuff | sold was 
clean. I'm not about to fuck anyone over. I'm 
just trying to get by. Maybe they just OD'd, you 
know? | didn't kill nobody, okay? You know 


what, I'm not saying anything else. Get me a 
lawyer, okay? 


Agent Francis: That isn't possible. And you're 
not in trouble. Relax, kid. 


: (pauses) 'Ight. Okay. Okay. 


Agent Francis: Have you noticed anyone 
acting odd or abnormal? Your buyers? 
Friends? 


: Yeah, you know what? There was 
something someone said, this young girl. 
Blonde. Didn't look the type. She said 
something about a hole. | heard it before, but 
she said some weird shit about it. Got me all 
messed up for a bit. Sold her some anyway, 
money's always green, right? 


Agent Francis: What did she say? 


: She said next time, she was gonna jump 
into it for real. Weirded me the fuck out. Drugs 
are drugs, right? Still, don't go jumping into 
some goddamn hole in the floor. High as balls 
or not. Can | leave? I'm tired, man. 


Agent Francis: Alright. One last thing. 
: (groans) Okay, what? 


Agent Francis: Did you ever see this so- 
called ‘hole’? 


: (pauses) | think so. Took a few bumps 
at a party and it caught my eye. Looked dark 
as fuck. Wouldn't jump in if | had the choice. 
Part of me said go on, you know? You smoke 
crack on the streets, what's some shit your 
seein’ gonna do to you that's worse than what 
rock has on you? | see them crackheads out 


Paint samples, metal fatigue and construction techniques date 
SCP-432 to having been constructed the early 1950s. However, 
artifacts recovered from within SCP-432 have been accurately dated 
to much earlier periods. 


Expeditions : 

Below are the expeditions within SCP-432 to date. 

The standard agreed mission equipment pack, agreed by Dr T. 
Small and Dr , IS: 


One (1) hand-torch (flashlight) with a three (3) hour lifespan and 
additional power sources providing up to six (6) additional hours 
One (1) headset microphone linked to control 

One (1) shoulder-mounted video unit set for wireless transmission 
Two (2) 0.5 L bottles of water 

Two (2) high-calorie energy bars 

Eight (8) sticks of luminous marker chalk 


SCP-432 Expedition 1 
SCP-432 Expedition 2 
SCP-432 Expedition 3 [FILE LOCKED] 
SCP-432 Expedition 4 
SCP-432 Expedition 5 


Materials Recovered 


« SCP-431 | SCP-432 | SCP-433 » 


there, itching themselves, suckin’ dick for a 
little piece of that cook-up. But this? Nah man, 
| felt something bad. Something real bad. 
Down that hole, | dunno man. | told myself | 
was tripping out, but that hole seemed like a 
one-way trip, if you Know what I'm saying. 


Agent Francis: | see. Alright, you're good to 
go. 


: Really? I'm just gonna walk? That's 
that? 


Agent Francis: Yep, that's that. (to the guard) 
Get this kid some forget-me-nows. 


: Some what? 
[END LOG] 
Incident Log 3335.3: 


Asof //  , multiple cases have been reported comatose users 
having experienced "Hole" effects re-awakening with massive 
alterations in personality and physiology. Extreme mood swings, 
mania, and psychosis seem to be most prevalent. Affected 
individuals have shown marked increase of adrenaline and cortisol 
present in blood testing, as well as a higher blood concentration of 
SCP-3335. 


Electroencephalography tests yielded unusual patterns of electrical 
activity in the brains of SCP-3335-1 instances, similar in effects to 
those who have undergone corpus collostomy procedures. As a 
result, many subjects develop symptoms similar to callosal 
disconnection syndrome, also known as "split-brain". 


When a subject appears to have acquired symptoms of callosal 
disconnection syndrome, hemispheres of the brain take on unique 
attributes of their own. This results in separate impulses and 
perceptions for both halves of the subject's body. 


Unlike usual cases of callosal disconnection, both hemispheres of 


affected victims develop their own consciousness, one half of which 
may usually retain some personality traits of the original individual, 
but with extreme emotional dampening and lethargy. The other half 
seems to be occupied by a unique consciousness. These 
personalities are often highly erratic and violent by nature (See 
Interview Log 3335-1B). 


+ Access Interview Log 3335-1B 
Interview Log 3335-1B 


Interviewee: SCP-3335-1, formerly known as 


Interviewer: Dr. Brenard , Foundation 
psychologist 


Note: This interview was conducted at the 
Valley Hospital in _, Minnesota. 


[BEGIN LOG] 
Dr. : So, 3335-1, how are we feeling today? 


SCP-3335-1: What did you call me? My name 
is . I'm doing okay, | guess. Feel a little 
weird. Can you get these restraints off? Seems 
a little excessive. 


Dr. _: Okay, itis. And yes, soon. You 
had a minor psychotic break, we had to place 
you in a medically induced coma. 


SCP-3335-1: The last thing | remember was 
feeling like | was falling down a dark tunnel. 


Dr. |: Howdo you feel right now? 


SCP-3335-1: Well, not too sober. Better than 
before. But still feeling a bit off. 


Dr. _: Please, explain. 


SCP-3335-1: Um, well, to be honest, | feel out 
of it. Like my body isn't working the way | want 
it to. Sometimes I'm good, sometimes not. 
Feeling a little numb, but it'll pass, right? 


Dr. __: I'm sure it will, can you elaborate a 
bit?