You may have seen these images before, but I think they are much more interesting with a bit of explanation of the drugs.
 Normal |
This is a typical spider web. This is the goal, what you should compare the other images with. |
 Marijuana |
This spider was given marijuana (or “hash”) before making the web. Marijuana makes you slow and makes it hard to concentrate. The spider started just fine, but then it got lazy. |
 Benzedrine |
Benzedrine made this spider active. So active, it forgot to plan anything. |
 Chloral Hydrate |
Chloral hydrate is (among other things) a sedative. This poor spider started nicely, and probably fell asleep. |
 Caffeine |
This is the interesting part. This is what happens when you get too much caffeine. No planning, no system, worthless. Like the sedated spider, it never got to the part with the spirals.
Now let me ask all you software developers like me out there: Do you really want to create software, with large amounts of caffeine in your body? And everybody else: Do you want to use software created like this? |
This experiment was invented in 1948, but these images are from a similar experiment performed by NASA in 1995.
Source: Wikipedia - Effect of psychoactive drugs on animals
And by the way:
In large amounts, and especially over extended periods of time, caffeine can lead to a condition known as caffeinism. Caffeinism usually combines caffeine dependency with a wide range of unpleasant physical and mental conditions including nervousness, irritability, anxiety, tremulousness, muscle twitching (hyperreflexia), insomnia, headaches, respiratory alkalosis, and heart palpitations.