There isn't a black and white answer for this. Certainly the crowd has an impact on the game no matter what sport it is. One thing is for certain though... For the crowd to have an impact there does actually have to be one, and they have to be loud.
Outside of that, I think it really depends on the player. Some players handle things like that better than others, and it doesn't matter what sport you're talking about. Some players use it as an advantage. They want to shut them up. Some players are easily flustered and can allow a pumped up crowd to get to them. I played D3 football in front of some decent sized crowds, but during the game I honestly never even paid attention to them. I was an outside linebacker though. I think in football it depends more on what position you play. A QB is more apt to be flustered than most other positions because in high pressure situations they are depended on to make a play. If you're feeling that pressure then you might allow yourself to take into account the atmosphere you are playing in. Basketball is similar to that. At the end of games players are required to make a play. Sometimes the ball doesn't always end up in your best players hands (see the McCabe airball). I would venture to guess the crowd absolutely has an impact at B10 level basketball games.
