Hardiness (psychological)

Hardiness (psychological), alternatively referred to as psychological hardiness, personality hardiness, or cognitive hardiness in the literature, is a personality style first introduced by Suzanne C. Kobasa in 1979.[1] Kobasa described a pattern of personality characteristics that distinguished managers and executives who remained healthy under life stress, as compared to those who developed health problems. In the following years, the concept of hardiness was further elaborated in a book[2] and a series of research reports by Salvatore Maddi, Kobasa and their graduate students at the University of Chicago.[3][4][5][6][7][8]

Definitions

In the early days of hardiness research, it was usually defined as a personality structure comprising the three related general dispositions of commitment, control, and challenge that functions as a resistance resource in the encounter with stressful conditions.[1][5] The commitment disposition was defined as a tendency to involve oneself in the activities in life and having a genuine interest in and curiosity about the surrounding world (activities, things, other people). The control disposition was defined as a tendency to believe and act as if one can influence the events taking place around oneself through one’s own effort. Finally, the challenge disposition was defined as the belief that change, rather than stability, is the normal mode of life and constitutes motivating opportunities for personal growth rather than threats to security.

Lately, Maddi[9][10] has characterized hardiness as a combination of three attitudes (commitment, control, and challenge) that together provide the courage and motivation needed to turn stressful circumstances from potential calamities into opportunities for personal growth. While acknowledging the importance of the three core dimensions, Bartone[11] considers hardiness as something more global than mere attitudes. He conceives of hardiness as a broad personality style or generalized mode of functioning that includes cognitive, emotional, and behavioural qualities. This generalized style of functioning, which incorporates commitment, control, and challenge, is believed to affect how one views oneself and interacts with the world around.

Historical roots

Early conceptualizations of hardiness are evident in Maddi's work, most notably in his descriptions of the ideal identity and premorbid personality.[12] In his 1967 article, Maddi argued that chronic states of meaninglessness and alienation from existence were becoming more and more typical features of modern life. Like other existential psychologists before him, Maddi believed that the feelings of apathy and boredom and inability to believe in the interest value of the things one is engaged in that characterised modern living were caused by upheavals in culture and society, increased industrialization and technological power, and to more rigidly differentiated social structures in which people had their identities defined in terms of their social roles.

Maddi goes on to outline two distinct personality types, based on how people identify or see themselves. The premorbid personality sees him- or herself in fairly simple terms, as nothing more than “a player of social roles and an embodiment of biological needs.”[13] This type of identity thus stresses qualities that are the least unique for him or her as opposed to other species (biological needs) and to other people (social roles). According to Maddi, people with a premorbid identity can continue with their life for a long time and ostensibly feel adequate and reasonably successful. However, this personality type is also prone to be precipitated into a state of chronic existential neurosis under conditions of stress. This existential neurosis is characterized by the belief that one’s life is meaningless, by feelings of apathy and boredom, and by a lack of selectivity in actions – a sense that one’s activities are not chosen.

In stark contrast to the premorbid personality one finds the ideal identity. Though still a player of social roles and an expression of the biological sides of man, this personality type also has a deeper and richer understanding of his or her unique psychological side – mental processes like symbolization, imagination, and judgement. Whereas the premorbid personality accepts social roles as given, feels powerless to influence actions and merely tries to play the roles as well as possible, the ideal identity, through expression of his or her psychological side, does not feel powerless in the face of social pressure. This person is able to perceive alternatives to mere role playing, is able to switch roles more easily, and even redefine existing roles. As a consequence of this deeper psychological understanding of self, the ideal identity is actively engaged in and interested in life, is willing to act to influence events, and is interested in new experiences and in learning new things.

Resiliency mechanisms

Hardiness is often considered an important factor in psychological resilience or an individual-level pathway leading to resilient outcomes.[14][15] Since 1979, a fairly extensive body of research has accumulated supporting the notion that hardiness has beneficial effects and buffers the detrimental effect of stress on health and performance. Although early studies relied almost exclusively on male business executives, over the years this buffer-effect has been demonstrated in a large variety of occupational groups as well as non-professionals, including military groups,[16][17] teachers and university staff,[18][19] firefighters,[20] and students.[21] Still, not every investigation has been able to demonstrate such moderating, or buffering, effects and there is a debate whether the effects of hardiness are interactive or primarily independent of levels of stress.[18][22][23]

The manner in which hardiness confers resiliency appears to be a combination of cognitive, behavioural mechanisms, and biophysical processes. Very simplified, as stressful circumstances mount, so does the physical and mental strain on the individual, and if this strain is sufficiently intense and prolonged, breakdowns in health and performance are to be expected. In short, the personality style of hardiness is proposed to have a moderating effect on this process by encouraging effective mental and behavioural coping, building and utilizing social support, and engagement in effective self-care and health practices.[9][10]

Cognitive appraisals

According to Kobasa,[3] individuals high in hardiness tend to put stressful circumstances into perspective and interpret them in a less threatening manner. As a consequence of these optimistic appraisals, the impact of the stressful events is reduced and they are less likely to negatively affect the health of the individual. Research on self-reported stressors, real-life stressful experiences, and laboratory-induces stress support this claim.[17][24][25][26][27][28][29][30] For example, two studies used military cadets undergoing stressful training as participants and found that cadets that scored high on hardiness appraised the combat training in less threatening terms, and at the same time viewed themselves as more capable of coping with the training.[17][29]

Behavioral coping

The coping style most commonly associated with hardiness is that of transformational coping, an optimistic style of coping that transforms stressful events into less stressful ones.[3][31] At the cognitive level this involves setting the event into a broader perspective in which they do not seem so terrible after all. At the level of action, individuals high in hardiness are believed to react to stressful events by increasing their interaction with them, trying to turn them into an advantage and opportunity for growth, and in the process achieve some greater understanding. In support of this notion, two studies have demonstrated that the effects of hardiness on symptoms of illness were partly mediated through the positive relation of hardiness to presumed beneficial coping styles and the negative relation to presumed harmful styles of coping.[29][32]

Social resources and health-promoting behaviour

The concept of transformational coping can be extended to also include health-promoting behaviour and recruiting or making adequately use of social resources.[9][10] One study has shown that in relation to work-environment stress, support from boss but not support from home promoted health among executives high in hardiness.[8] For those executives ranked low in hardiness, support from boss did not promote health and family support worsened their health status. These results were taken to suggest that hardy individuals know what type of support to use in a given situation. Another study also found support for an indirect effect of hardiness through social support on post-traumatic stress symptomatology in veterans of the Vietnam War.[33] Although several studies have found hardiness to be related to making good use of social resources, some studies have also failed to support this idea and rather found that the two concepts made independent contributions to positive health outcomes.[34][35]

Several investigations have found hardiness and physical exercise to be uncorrelated.[6][36][37] On the other hand, one study examined a broader array of health-protective behaviours, including exercise, and found that hardiness worked indirectly through these behaviours to influence health.[38] Another study also found that hardiness was negatively correlated with self-reported alcohol use and drug use obtained through both urine screens and self-report.[39]

Biophysiology

Hardiness appears to be related to differences in physiological arousal. It is believed that hardiness helps decrease the ability of stressful events to produce arousal in the sympathetic nervous system.[6] Some support for this notion can be found in studies demonstrating that participants that score high on hardiness exhibit lower cardiovascular reactivity in response to stress.[30][40]

Another study examined the functional efficacy of immune cells in participants scoring low and high on hardiness.[41] This study examined in vitro proliferation of lymphocytes in response to invading microorganisms (antigens and mitogens), a process believed to mimic the series of events that occurs in vivo following stimulation by invading microorganisms. Results showed that participants scoring high on hardiness had significantly higher mean antigen- and mitogen-induced proliferative responses.

Other studies have associated hardiness with cholesterol and hormonal variations. Bartone and associates[42] examined hardiness levels against a full lipid profile including high-density lipoprotein, usually considered a beneficial type of cholesterol.[43] Findings from this study showed that participants high in hardiness were more than two times as likely to also have high levels of high-density lipoprotein compared with participants low in hardiness. Although it has been suggested that hardiness might be related with lower levels of the “stress-hormone” cortisol,[44] one of the few studies that have investigated the two found that higher hardiness was associated with higher levels of cortisol.[45]

Measurement

There are several instrument developed to measure hardiness, the most frequently used being the Personal Views Survey,[46][47] the Dispositional Resilience Scale,[48][49][50] and the Cognitive Hardiness Scale.[51] In addition to these, other scales based on hardiness theory have been designed to measure the construct in specific contexts and in special populations, such as for example parental grief and among the chronically ill.[52][53]

Similar to many personality variables in the field of psychology, hardiness is considered to measure a continuous dimension. Individuals will vary in their levels of hardiness along a continuum from low to high, with a relatively small percentage scoring at the extreme low/high ends. Given large enough samples, the distribution of scores on hardiness measures will approximate a normal, Gaussian distribution.

Similarities with other constructs

Hardiness has some notable similarities with other personality constructs in psychology. Chief among these are locus of control,[54] sense of coherence,[55] (SOC) self-efficacy,[56] and dispositional optimism.[57] Despite their very different theoretical approaches – hardiness arose from existential psychology and -philosophy, SOC has its roots in sociology, whereas locus of control, self-efficacy, and dispositional optimism all are based on a learning/social cognitive perspective – some striking similarities are present. Most notably, perhaps, are the similarities between hardiness and SOC. Individuals with a strong SOC perceive life as comprehensible, cognitively meaningful, and manageable.[55] Persons with strong SOC are more likely to adapt to demanding situations and are able to cope successfully with strenuous life events. Both SOC and the commitment dimmension of hardiness emphasise an ability to feel deeply involved in the aspects of our lives. Furthermore, both SOC and control emphasise personal resources in facing the demands of stressful situations. The most notable difference between SOC and hardiness is the challenge facet, with the former highlighting stability whereas the latter emphasises change.

Hardiness and the remaining constructs of locus of control, dispositional optimism, and self-efficacy all emphaisze goal-directed behaviour in some form. For instance, in accordance with the theory of dispositional optimism,[57][58] expectancies of the outcomes to our behaviour are important determinants of whether we respond to adversity by continuing efforts or by disengagement. Holding a positive outlook will lead to continuous effort to obtain a goal, whereas negative expectations towards the future will lead to giving up. Similarly, in Bandura's writings on self-efficacy, our beliefs about our capabilities to execute the courses of actions required to manage prospective situations highly influences the situations we seek out and the goals we set ourselves.[56]

See also

References

  1. 1 2 Kobasa, S. C. (1979). "Stressful life events, personality, and health – Inquiry into hardiness". Journal of Personality and Social Psychology 37 (1): 1–11. doi:10.1037/0022-3514.37.1.1. PMID 458548.
  2. ↑ Maddi, S. R., & Kobasa, S. C. (1984). The hardy executive : Health under stress. Homewood, IL:: Dow Jones-Irwin.
  3. 1 2 3 Kobasa, S. C. (1982). "Commitment and coping in stress resistance among lawyers". Journal of Personality and Social Psychology 42 (4): 707–717. doi:10.1037/0022-3514.42.4.707.
  4. ↑ Kobasa, S. C., Maddi, S. R., & Courington, S. (1981). "Personality and constitution as mediators in the stress-illness relationship". Journal of Health and Social Behavior 22 (4): 368–378. doi:10.2307/2136678. PMID 7320474.
  5. 1 2 Kobasa, S. C., Maddi, S. R., & Kahn, S. (1982). "Hardiness and health: A prospective study". Journal of Personality and Social Psychology 42 (1): 168–177. doi:10.1037/0022-3514.42.1.168. PMID 7057354.
  6. 1 2 3 Kobasa, S. C., Maddi, S. R., Puccetti, M. C., & Zola, M. A. (1985). "Effectiveness of hardiness, exercise and social support as resources against illness". Journal of Psychosomatic Research 29 (5): 525–533. doi:10.1016/0022-3999(85)90086-8. PMID 4067890.
  7. ↑ Kobasa, S. C., Maddi, S. R., & Zola, M. A. (1983). "Type A and hardiness". Journal of Behavioral Medicine 6 (1): 41–51. doi:10.1007/BF00845275. PMID 6876154.
  8. 1 2 Kobasa, S. C., & Puccetti, M. C. (1983). "Personality and social resources in stress resistance". Journal of Personality and Social Psychology 45 (4): 839–850. doi:10.1037/0022-3514.45.4.839. PMID 6631665.
  9. 1 2 3 Maddi, S. R. (2004). "Hardiness: An operationalization of existential courage". Journal of Humanistic Psychology 44 (3): 279–298. doi:10.1177/0022167804266101.
  10. 1 2 3 Maddi, S. R. (2006). "Hardiness: The courage to grow from stresses". Journal of Positive Psychology 1 (3): 160–168. doi:10.1080/17439760600619609.
  11. ↑ Bartone, P. T. (2006). "Resilience under military operational stress: Can leaders influence hardiness?". Military Psychology 18: S131–S148. doi:10.1207/s15327876mp1803s_10.
  12. ↑ Maddi, S. R. (1967). "The existential neurosis". Journal of Abnormal Psychology 72 (4): 311–325. doi:10.1037/h0020103. PMID 6058470.
  13. ↑ Maddi 1967, p. 315.
  14. ↑ Bartone, P. T., & Hystad, S. W. (2010) Increasing mental hardiness for stress resilience in operational settings. In P. T. Bartone, B. H. Johnsen, J. Eid, J. M. Violanti & J. C. Laberg (Eds.), Enhancing human performance in security operations: International and law enforcement perspective (pp. 257–272). Springfield, Il: Charles C. Thomas
  15. ↑ Bonanno, G. A. (2004). "Loss, trauma, and human resilience. Have we underestimated the human capacity to thrive after extremely aversive events?". American Psychologist 59 (1): 20–28. doi:10.1037/0003-066X.59.1.20. PMID 14736317.
  16. ↑ Bartone, P. T. (2000) Hardiness as a resiliency factor for United States Forces in the Gulf War. In J. M. Violanti, D. Paton & C. Dunning (Eds.), Posttraumatic stress intervention: Challenges, issues and perspectives (pp. 115–133). Springfield, IL: Charles C Thomas Publisher Ltd
  17. 1 2 3 Westman, M. (1990). "The relationship between stress and performance: The moderating effect of hardiness". Human Performance 3 (3): 141–155. doi:10.1207/s15327043hup0303_1.
  18. 1 2 Klag, S., & Bradley, G. (2004). "The role of hardiness in stress and illness: An exploration of the effect of negative affectivity and gender". British Journal of Health Psychology 9 (Pt 2): 137–161. doi:10.1348/135910704773891014. PMID 15125801.
  19. ↑ Nishizaka, S. (2002). "Kindergarten teachers' mental health: Stress, pre-school teacher efficacy, and hardiness". Japanese Journal of Educational Psychology 50: 283–290.
  20. ↑ Jimenez, B. M., Natera, N. I. M., Munoz, A. R., & Benadero, M. E. M. (2006). "Hardy personality as moderator variable of burnout syndrome in firefighters". Psicothema 18 (3): 413–418. PMID 17296065.
  21. ↑ Hystad, S. W., Eid, J., Laberg, J. C., Johnsen, B. H., & Bartone, P. T. (2009). "Academic stress and health: Exploring the moderating role of personality hardiness". Scandinavian Journal of Educational Research 53 (5): 421–429. doi:10.1080/00313830903180349.
  22. ↑ Funk, S. C. (1992). "Hardiness – A review of theory and research". Health Psychology 11 (5): 335–345. doi:10.1037/0278-6133.11.5.335. PMID 1425552.
  23. ↑ Sinclair, R. R., & Tetrick, L. E. (2000). "Implications of item wording for hardiness structure, relation with neuroticism, and stress buffering". Journal of Research in Personality 34: 1–25. doi:10.1006/jrpe.1999.2265.
  24. ↑ Allred, K. D., & Smith, T. W. (1989). "The hardy personality – Cognitive and physiological responses to evaluative threat". Journal of Personality and Social Psychology 56 (2): 257–266. doi:10.1037/0022-3514.56.2.257. PMID 2926628.
  25. ↑ Banks, J. K., & Gannon, L. R. (1988). "The influence of hardiness on the relationship between stressors and psychosomatic symptomatology". American Journal of Community Psychology 16 (1): 25–37. doi:10.1007/BF00906070. PMID 3369380.
  26. ↑ Clark, L. M., & Hartman, M. (1996). "Effects of hardiness and appraisal on the psychological distress and physical health of caregivers to elderly relatives". Research on Aging 18 (4): 379–401. doi:10.1177/0164027596184001.
  27. ↑ DiBartolo, M. C., & Soeken, K. L. (2003). "Appraisal, coping, hardiness, and self-perceived health in community-dwelling spouse caregivers of persons with dementia". Research in Nursing & Health, 26: 445–458.
  28. ↑ Rhodewalt, F., & Zone, J. B. (1989). "Appraisal of life change, depression, and illness in hardy and nonhardy women". Journal of Personality and Social Psychology 56 (1): 81–88. doi:10.1037/0022-3514.56.1.81. PMID 2926618.
  29. 1 2 3 Florian, V., Mikulincer, M., & Taubman, O. (1995). "Does hardiness contribute to mental-health during a stressful real-life situation: The roles of appraisal and coping". Journal of Personality and Social Psychology 68 (4): 687–695. doi:10.1037/0022-3514.68.4.687. PMID 7738771.
  30. 1 2 Wiebe, D. J. (1991). "Hardiness and stress moderation: A test of proposed mechanisms". Journal of Personality and Social Psychology 60 (1): 89–99. doi:10.1037/0022-3514.60.1.89. PMID 1995836.
  31. ↑ Maddi, S. R. (1999). "The personality construct of hardiness: I. Effects on experiencing, coping, and strain". Consulting Psychology Journal: Practice and Research 51 (2): 83–94. doi:10.1037/1061-4087.51.2.83.
  32. ↑ Soderstrom, M., Dolbier, C., Leiferman, J., & Steinhardt, M. (2000). "The relationship of hardiness, coping strategies, and perceived stress to symptoms of illness". Journal of Behavioral Medicine 23 (3): 311–328. doi:10.1023/A:1005514310142. PMID 10863680.
  33. ↑ Taft, C. T., Stern, A. S., King, L. A., & King, D. W. (1999). "Modeling physical health and functional health status: The role of combat exposure, posttraumatic stress disorder, and personal resource attributes". Journal of Traumatic Stress 12 (1): 3–23. doi:10.1023/A:1024786030358. PMID 10027139.
  34. ↑ Gill, M. J., & Harris, S. L. (1991). "Hardiness and social support as predictors of psychological discomfort in mothers of children with autism". Journal of Autism and Developmental Disorders 21 (4): 407–416. doi:10.1007/BF02206867. PMID 1778957.
  35. ↑ Pengilly, J. W., & Dowd, E. T. (2000). "Hardiness and social support as moderators of stress". Journal of Clinical Psychology 56 (6): 813–820. doi:10.1002/(SICI)1097-4679(200006)56:6<813::AID-JCLP10>3.0.CO;2-Q. PMID 10877469.
  36. ↑ Kobasa, S. C., Maddi, S. R., & Puccetti, M. C. (1982). "Personality and exercise as buffers in the stress-illness relationship". Journal of Behavioral Medicine 5 (4): 391–404. doi:10.1007/BF00845369. PMID 7154062.
  37. ↑ Roth, D. L., Wiebe, D. J., Fillingim, R. B., & Shay, K. A. (1989). "Life events, fitness, hardiness, and health – A simultaneous analysis of proposed stress-resistance effects". Journal of Personality and Social Psychology 57 (1): 136–142. doi:10.1037/0022-3514.57.1.136. PMID 2754600.
  38. ↑ Wiebe, D. J., & McCallum, D. M. (1986). "Health practices and hardiness as mediators in the stress-illness relationship". Health Psychology 5 (5): 425–438. doi:10.1037/0278-6133.5.5.425. PMID 3757991.
  39. ↑ Maddi, S. R., Wadhwa, P., & Haier, R. J. (1996). "Relationship of hardiness to alcohol and drug use in adolescents". American Journal of Drug and Alcohol Abuse 22 (2): 247–257. doi:10.3109/00952999609001657. PMID 8727058.
  40. ↑ Contrada, R. J. (1989). "Type A behavior, personality hardiness, and cardiovascular responses to stress". Journal of Personality and Social Psychology 57 (5): 895–903. doi:10.1037/0022-3514.57.5.895. PMID 2810029.
  41. ↑ Dolbier, C. L., Cocke, R. R., Leiferman, J. A., Steinhardt, M. A., Schapiro, S. J., Nehete, P. N.; et al. (2001). "Differences in functional immune responses of high vs. low hardy healthy individuals". Journal of Behavioral Medicine 24 (3): 219–229. doi:10.1023/A:1010762606006. PMID 11436543.
  42. ↑ Bartone, P. T., Spinosa, T., Robb, J., & Pastel, R. H. (2008, November) Hardy-resilient style is associated with high-density lipoprotein cholestrol levels. Paper presented at the Association of Military Surgeons of the United States annual meeting, San Antonio, Texas
  43. ↑ Barter, P. (2005). "The role of HDL-cholesterol in preventing atherosclerotic disease". European Heart Journal Supplements 7: F4–F8. doi:10.1093/eurheartj/sui036.
  44. ↑ Eid, J., & Morgan, C. A. (2006). "Dissociation, hardiness, and performance in military cadets participating in survival training". Military Medicine 171 (5): 436–442. PMID 16761896.
  45. ↑ Zorrilla, E. P., Derubeis, R. J., & Redei, E. (1995). "High self-esteem, hardiness and affective stability are associated with higher basal pituitary-adrenal hormone levels". Psychoneuroendocrinology 20 (6): 591–601. doi:10.1016/0306-4530(95)00005-9. PMID 8584600.
  46. ↑ Maddi, S. R. (1997) Personal views survey II: A measure of dispositional hardiness. In C. P. Zalaquett & R. J. Wood (Eds.), Evaluating stress: A book of resources (pp. 293–309). Lanham, Md.: Scarecrow Press, Inc
  47. ↑ Maddi, S. R., Harvey, R. H., Khoshaba, D. M., Lu, J. L., Persico, M., & Brow, M. (2006). "The personality construct of hardiness, III: Relationships with repression, innovativeness, authoritarianism, and performance". Journal of Personality 74 (2): 575–597. doi:10.1111/j.1467-6494.2006.00385.x. PMID 16529587.
  48. ↑ Bartone, P. T. (1991, June) Development and validation of a short hardiness measure. Paper presented at the Annual Convention of the American Psychological Society, Washington, DC
  49. ↑ Bartone, P. T. (1995, July) A short hardiness scale. Paper presented at the Annual Convention of the American Psychological Society, New York
  50. ↑ Bartone, P. T., Ursano, R. J., Wright, K. M., & Ingraham, L. H. (1989). "The impact of a military air disaster on the health of assistance workers: A prospective study". Journal of Nervous and Mental Disease 177 (6): 317–328. doi:10.1097/00005053-198906000-00001. PMID 2723619.
  51. ↑ Nowack, K. M. (1989). "Coping style, cognitive hardiness, and health status". Journal of Behavioral Medicine 12 (2): 145–158. doi:10.1007/BF00846548. PMID 2760920.
  52. ↑ Pollock, S. E., & Duffy, M. E. (1990). "The health-related hardiness scale: Development and psychometric analysis". Nursing Research 39 (4): 218–222. doi:10.1097/00006199-199007000-00008. PMID 2367202.
  53. ↑ Lang, A., Goulet, C., & Amsel, R. (2003). "Lang and Goulet hardiness Scale: Development and testing on bereaved parents following the death of their fetus/infant". Death Studies 27 (10): 851–880. doi:10.1080/716100345. PMID 14610777.
  54. ↑ Rotter, J. B. (1966) Generalized expectancies for internal versus external control of reinforcement, Psychological Monographs, 80 (Whole No.609)
  55. 1 2 Antonovsky, A. (1987). Unraveling the mystery of health: How people manage stress and stay well. San Francisco, CA: Jossey-Bass.
  56. 1 2 Bandura, A. (1997). Self-efficacy: The exercise of control. New York: Freeman.
  57. 1 2 Scheier, M. F., & Carver, C. S. (1985). "Optimism, coping, and health – Assessment and implications of generalized outcome expectancies". Health Psychology 4 (3): 219–247. doi:10.1037/0278-6133.4.3.219. PMID 4029106.
  58. ↑ Scheier, M. F., Carver, C. S., & Bridges, M. W. (1994). "Distinguishing optimism from neuroticism (and trait anxiety, self-mastery, and self-esteem) – A reevaluation of the life orientation test". Journal of Personality and Social Psychology 67 (6): 1063–1078. doi:10.1037/0022-3514.67.6.1063. PMID 7815302.

xc x d fsddfdF FD

External links

This article is issued from Wikipedia - version of the Tuesday, November 03, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.