The spell Emotive Block adds an emotion component to all spellcasting/spell-like abilities, but it also happens to be a non-harmless spell with the emotion descriptor; does emotive block trigger its own clause and block spellcasting with an emotional component?
If this is the case the spell seems much better than Cognitive Block, and even better than Mental Block since it doesn't allow any save after the first.
That is another example of the stellar editing done in regards to psychic casting. I'm glad to know that Logical Spell is a de facto feat tax for psychics and I'll be snagging that spell at 10th level on my psychic. :-p