You can't chose how you think so you can't possibly make free decisions. The veiling of this process or the illusion of free will could well be a defence mechanism of the mind to prevent it going into a neuro-feedback loop and rendering the whole organism essentially unusable.
Your reaction and thoughts to anything is determined by the connection your brain makes between them which in turn is affected by base level instincts. Given the brain has countless things stored the connections between them have infinite permutations. Which is why people appear so different in personality.
Things that appear to be choices that counteract base instincts like surviving could be any number of things from the brain through experience believing that endangering survival is actually a reasonable way to achieve some other goal or damage or conflicts between associations causing the reaction.
Your reaction and thoughts to anything is determined by the connection your brain makes between them which in turn is affected by base level instincts. Given the brain has countless things stored the connections between them have infinite permutations. Which is why people appear so different in personality.
Things that appear to be choices that counteract base instincts like surviving could be any number of things from the brain through experience believing that endangering survival is actually a reasonable way to achieve some other goal or damage or conflicts between associations causing the reaction.