For the record: Vladimir Bukovsky was a leading member of the Soviet dissident movement of the 1960s and 1970s. Currently he's a writer, neurophysiologist and a senior fellow at the Cato Institute
Bukovsky spent a total of twelve years in Soviet prisons, labor camps and psikhushkas (psychiatric hospitals).
Vladimir Bukovsky was one of the first to expose the use of psychiatric imprisonment against political prisoners in the Soviet Union. Marxism is in essence a particular world view that isn't born out by facts in the real world. So the Soviets worked at manipulating the people's perception of reality, to the point of faking history and faking (Potemkin) villages. No foreign book or newspaper was allowed into the country for fear of someone figuring it out. Those who complied lived in an amoral world of make-belief, mentally separated for reality. But who refused to go along with this madness was treated as a psychiatric patient and forced-treated in psikhushkas, psychiatric hospitals used as prisons.
Bukovsky's website at the Cato Institute
Bukovsky's Soviet Archives