The side has lost its four past matches despite leading at the final change, which coach Mark Harvey believes is a problem that needs to be addressed.
"Everyone talks about it now and we've created that," he said after Fremantle's nine-point loss to Carlton at Telstra Dome on Saturday.
"We've got to arrest that situation and get a win on the board. It will be interesting to see what happens when we do that, and what we're going to do after that."
Harvey said the club "could look at" utilising outside sources to find out both why the players are falling away in the fourth terms and to pursue possible solutions.
"We might have to consider visualising winning," he said.
"You'd like to think [we could address it ourselves] but at times that's a specialised area so we may look at things like [psychologists].
"There are other things that you can do that you do internally at football clubs that you don't necessarily talk about that hopefully can rectify the situations that we're going through."
Harvey said the fourth quarter horrors are not something he raises with the group as it convenes in the huddle before the final stanza of the game.
"You don't want to highlight that. I think the opposition are starting to do that to our team anyhow," he said.
"You just talk to them about [being] competitive and how the pressure has to be sustained, and how you've got to create overlap and be competitive in close.
"Just those things – what you're in control of."
The Fremantle coach noted his side was out-tackled by Carlton and, at times, felt lucky to still be in the game after the Blues gained ascendency.
However, he praised the output of young pair Garrick Ibbotson and Rhys Palmer, who were among the side's best in just their seventh and eighth games respectively.
"They're fantastic. They were our top two disposal getters," he said.
"They've come a long way. They're actually carrying the load of a lot of other players at the moment.
"What's tangible is they constantly do it, and we can put them in different positions and still get the same outcome."
