Claim: The overall atmosphere of the home field can often have psychological effects on the athletic performance of NFL players, which favors the home team. Football is said to be an aggressive sport which tests a person’s physical abilities to their fullest. But the game comes with many psychological aspects that can hinder or enhance the athletic performance of NFL players. The psychology of football can be broken down further. Game location is a big factor in the home field advantage. Studies show that travel distance has a psychological impact on the players’ athletic performance. Tests done showed that home field advantage increased as distance increased (Jamieson, 2010). Players also suffer from jet lag as they travel for long distances at a time. Thus, they are not psychologically stable which will result in a lower athletic performance. But this is not the case all the time. Division teams for example have a lower home field advantage due to the familiarity of the opponent because division teams play each other two times a year. Over time the players build familiarity going into hostile territory. In contrast, the intensity of the crowd is stronger in division games, but the away players get accustomed to the crowd which can counter act the intensity of the crowd. Another aspect of game location is weather conditions. “Our analysis is motivated by the idea that physiological and psychological strains result from playing in temperatures to which the body is not acclimatized. It is intuitive that home team players generally perform in temperatures to which they are relatively well acclimatized because they practice in conditions very similar to those expected on game days” (Borghesi, 2007). Playing in inclement weather can have a psychological effect on a player. For example, when playing in rain or snow, teams will run the ball more than pass it because of the psychological effect the weather has on the game. Players will begin doubting their ability to move the ball down the field because of the inclement weather. Thus resulting in a slower paced game. Away players can also get intimidated going into hostile territory Dr. Roy Baumeister, a psychology professor at Florida State said "The visiting team is in a selfpresentational dead end, for there is generally no way for them to gain the preferential esteem and affection of the home fans.” The lack of support from the enemy crowd will force the away team to play for self-attention, which causes performance instabilities. Psychologically, players want to win games for self-redefinition (Baumeister, 1984). At the end of a player’s career people often introduce them by stating the highlights of the player’s career. For example, sports analysts say the former Super Bowl MVP, Defensive player of the year, 10x pro bowler, etc. Self-redefinition is claiming a new identity and players want to be called such things because that portrays a successful NFL career. The players’ need for such titles can psychologically deteriorate their athletic performance. Melissa Anderson, who is a professor in the Department of Sport and Exercise Sciences professor at Northumbria University conducted a test and the results showed that “players felt more positive, confident and anxious at home while indicating that they did not expect to win away from home" (Anderson, 2012). If a player enters a game expecting not to win, they have already lost the edge against the home team. The home team now has a chip on their shoulders since they know they have the psychological advantage. This shows the lack of self-confidence that players have when not playing at home. If they go into the game not expecting to win, then it is going to be hard to get the will power to go out there and win it. An energetic crowd often boosts athletic performance and this quote by Lawrence Jackson proves that. "You attach to that energy, and you want to do something that keeps that energy going. It just takes you to a different level, in the sense that you're not afraid—almost like you're invincible." Jackson is a former Detroit Lion Defensive End and he was quoted saying that in 2011 during a game against the Chicago Bears. It was the first time the Lions hosted a MNF (Monday Night Football) game in 9 years (Schalter, 2013). Thus, Lions were at a psychological advantage. The crowd took over during the game and as Jackson said, the players felt “invincible”. This often leads to a heightened level of athletic performance. Football is not just people hitting each other, it is a chess game between the two teams. This gives the psychological advantage to the home team. This is indicative because, Jackson ended up having three tackles and a sack that game which helped his team secure the victory even though they were underdogs. One might argue that there are occasions where playing at home does not enhance a player’s athletic performance. This is true in rare cases. “In college basketball, Thirer and Rampey found that during normal crowd behavior the visiting teams committed more infractions (i.e. committed more fouls and lost more possessions or turnovers). During antisocial crowd behavior (swearing, chanting obscenities), however, home teams committed more infractions” (Nevill, 2011). Antisocial crowds are more angry and rowdy, but this does not always mean well for the home team. This is indicative with the Philadelphia Eagles, who since moving to Lincoln Financial field in 2003 have a better away record than home. This is said to be because of their fan base. Eagles are known to have the worst fans in the NFL. Their aggressiveness hurts the players. Profane language is negative, so when players here the negativity, it hinders them psychologically, which will show on the field via their athletic performance. The psychological state of the referees is a big contributor in this matter. “To be considered as a potential candidate for an NFL official position, college referees must have at least 5 years of experience. The selected few undergo a thorough vetting process, which includes psychological testing and background tests” (Goldschmied, 2014). This is done because to become a successful referee, you cannot let the crowd get to your head. NFL referees have to be psychologically stable or else they would not be able to judge a fair game for both sides. “It is plausible that this disparity is rooted in the fact that fans, being familiar with their favored team's stadium, are projecting the same familiarity effect on the players, whereas officials, in contrast, are by definition vagabonds and should feel psychologically equally detached in every stadium” (Goldschmied, 2014). Referees have to officiate each game like they have never been there before. If a referee feels that a certain crowd will impair his/her judgment on calls, then that psychologically will affect the way they call the game. Therefore, the players’ athletic performance will be affected by bias calls. Most of the time in these situations, the calls go for the home team which gives the team momentum that can shift the outcome of the game. The psychological connection between a player and his fan base in most cases have to be strong for that player to be successful. Being social with the fan base is one way to build loyalty which makes that connection stronger. "Players are rapidly distancing themselves from their fan base. In earlier times, players were literally part of the community, cementing the relationship between fan and athlete" (Smith, 2003). The more a player distances himself from his fans the less motivation he has to excel athletically because he is not emotionally connected with the city. Players such as Ray Lewis that engage with their community not only play great on the field, but are great leader for their team also. Players that are close to their community hate to disappoint their fans. In return the fans show more love which increases athletic performance during games.