Naked Science Forum

Life Sciences => Physiology & Medicine => Topic started by: MeganM on 04/02/2020 08:50:24

Title: What does it mean to be "hard-wired"?
Post by: MeganM on 04/02/2020 08:50:24
Seth wants to know:

What does it mean to be hard wired? If we are truly hard wire, does it mean we cannot change?

Any thoughts?
Title: Re: What does it mean to be "hard-wired"?
Post by: Colin2B on 04/02/2020 09:01:45
The term derives from computing where there is the option to have physical (unchanging) circuits and software (changeable).
When this terminology is applied to the brain it is usually means something which is coded in genetically eg birds navigate automatically without being taught.
Yes, if it is truly hard wired, it cannot be changed, however, it is often misapplied to some human traits which turn out to be changeable after all.
Title: Re: What does it mean to be "hard-wired"?
Post by: vhfpmr on 04/02/2020 12:20:58
I think Steven Pinker hits the nail fair and square on the head: the brain must be a mix of both nature and nurture, because either of the two alternatives would be at such a disadvantage they would be unable to compete.
Title: Re: What does it mean to be "hard-wired"?
Post by: SethB on 04/02/2020 14:51:08
The term derives from computing where there is the option to have physical (unchanging) circuits and software (changeable).
When this terminology is applied to the brain it is usually means something which is coded in genetically eg birds navigate automatically without being taught.
Yes, if it is truly hard wired, it cannot be changed, however, it is often misapplied to some human traits which turn out to be changeable after all.

Where did the birds get that "coding" though? How was it put there? Evolution would explain it by stating over time the birds went through trial and error, or whatever worked - stayed. But with birds, they don't have much to worry about. I once was told by a friend during a discussion that infants are "afraid" of snakes, before being taught that snakes are dangerous. But, as we grow, we can love snakes. If it were truly hard wired, why can we deviate from it? Is it epigenetics that cause the fear and thus allows us to deviate?

I don't think anything is "hard wired" it is merely what has helped us in the past helps us now (goes for any organism.) But if things were "hard wired" and cannot be changed, then evolution would stop and everything would die as the environment around begins to change.

So, my standing is "Nothing is hard wired, but simply adapted to make life easier. Therefore, everyone/everything is malleable. Beau Lotto said it best in his book "Deviate" - "Change the environment, you change the brain.""

I think Steven Pinker hits the nail fair and square on the head: the brain must be a mix of both nature and nurture, because either of the two alternatives would be at such a disadvantage they would be unable to compete.

I would agree with this, but I don't think anything is absolute like the term "hard wired" seems to imply. Furthermore, it allows criminals, sex offenders, etc an excuse - "Oh I'm just wired that way." I truly find that given the right circumstances, anyone can change. In addition, it gives the whole "the only way to stop someone is to kill them" when what is actually happening is lack of understanding and compassion.




PS: Megan, thanks for leading me to this! Didn't know this forum was here! :D
Title: Re: What does it mean to be "hard-wired"?
Post by: evan_au on 04/02/2020 20:58:02
Quote from: SethB
But if things were "hard wired" and cannot be changed, then evolution would stop and everything would die as the environment around begins to change.
Biological/genetic evolution plays out over many generations.

Every new plant/animal/bacteria formed by sexual reproduction has a different genetic mix than any creature that lived previously. So the descendant is wired (slightly) differently from its parents.
- In fact, modelling and field studies suggest that plant and animal species using exclusively asexual reproduction are self-limiting

This is a source of inheritable genetic variation, which is the feedstock for evolution.

Most of the changes in humanity have occurred at a faster rate than can be explained by genetic evolution, especially given the relatively long lifespan of humans.
- Many changes are due to our large brains and control of machines which allows most of us to override our genetic drives
- It is a form of social evolution
- In fact, one of the goals of family, religion, education and government is to help us override these base egocentric tendencies for the good of society as a whole.
Title: Re: What does it mean to be "hard-wired"?
Post by: hamdani yusuf on 05/02/2020 03:08:37
I would agree with this, but I don't think anything is absolute like the term "hard wired" seems to imply. Furthermore, it allows criminals, sex offenders, etc an excuse - "Oh I'm just wired that way." I truly find that given the right circumstances, anyone can change. In addition, it gives the whole "the only way to stop someone is to kill them" when what is actually happening is lack of understanding and compassion.
Let them use that excuse, which gives us justification to execute them to save other people. Or better, to study their brain in a lab and hoping there could be some fix for them.