See also Cherryh, Carolyn J., Alliance-Union universe.
Sometimes the hallucinations include seeing alternate versions of their own ship, with the other crew usually unaware of their presence... but occasionally reacting to them.
That's... interesting. I met CJ and her artist brother David (no "h" in his last name) back in the 80's SF convention scene. I have the whole "Faded Sun" series autographed. But I've never read her Alliance-Union work. I started "Downbelow Station" but never finished it, because at the time I felt like it plodded. I ought to take it off the shelf again.
Niven's Known Space had a similarly unsettling response to hyperspace, IIRC--only if you looked at it, you saw nothing. That is, your visual cortex in the brain shut down, and you got "trapped" until someone came along and moved you so some "normal" space was in your visual field, and you could see again.
Another take on "Jump dimming" is similar to modern air-conditioned autos: when the accelerator is pushed, the air conditioning is cut out for a few minutes to give more power for accelerating the car. Most often, the cut out is so brief that the cooling is basically not affected.
Interestingly, a Travelling sect of Buddhist Monks find tranquility while gazing into the apex. They often trade their services for travel, which are greatly prized among spacers for their efficiency (and you don't have to pay them, said the grizzled old Merchant Captain ...) The only stipulation the Monks request is time to meditate before an open porthole during Jump.
It is also said that Zhodani are immune to the maddening effects of jumpspace; which begs the question is there a correlational between the meditative practices of the Monks and Psionics ability ...
Dedicated passenger liners have Game Night about two-thirds of the way through the trip. (About the time for children to get bored and start wandering around the ship looking for excitement.) The stewards have games like Sorry, Uno, Old Maid, &c (Monopoly for the older minors) that give an excuse to meet other passengers and spend time interacting with live people.
What, no Cards Against Humaniti?
Only Buddhist monks? There are plenty of other monastic traditions running around. Many seem to have developed in the 5th Cent. BCE or thereabouts, for some reason . . .
Sure; but these Monks are Buddhists.
Awww.I was hoping for some Cestus Dei-type monastic-crewed starship-abbeys.
One could always import some of the more interesting little tricks played on new crew in the Navy, like having someone go for a bucket of steam, or have him ask the engineer for an ID-10-T form.