## 1 Introduction  
Postural control is a concept that combines information from all possible sources, but mainly from visual, vestibular, and somatosensory systems. Thus, it describes how the central nervous system regulates sensory information to produce adequate motor output to maintain a controlled upright posture. According to [PERSON] [1], the choice of a particular postural strategy depends not only on the characteristics of the external postural displacement but also on the individual expectations, goals, and previous experiences. The most common and simple technique used to quantify postural control in an upright stance is the assessment of the variability of the center of pressure (CoP). Among different methods for assessing CoP, the force plate is commonly used [2]. The CoP is a measurement of whole-body dynamics and represents the sum of various neuromusculars acting at different joint levels [3]. Since the upright standing position is a complicated task, many authors have assessed it under the influence of various stimuli or manipulations. The most simple changes involve manipulating the size of the base of support (double-limb stance, tandem stance, or single-limb stance) [2, 3] or sensory (eyes opened, eyes closed) [4]. More challenging tasks involve the dual-task concept [2, 5]. It is also worth noting that many groups have been studied over the years. These include healthy children [6], young people [5], the elderly [7], and those with various dysfunctions [8]. The body and mind are highly linked and interact with each other [9]. According to [PERSON] et al. [10] and [PERSON] et al. [11], postural control can adapt to or depend on emotional, psychological, and relational conditions. In the available literature, numerous papers describe how provoking specific emotions (mood states, fear, and anxiety) influences postural control [12; 13]. Individuals exhibiting anxiety and fearful behaviors during testing are more unstable [13; 14; 15]. [PERSON] et al. [16] showed that adverse changes in mood states may affect balance either through sensory organization or motor control. [PERSON] et al. [17] highlighted that, disregarding age, postural control is more conservative as anxiety increases, but age does not affect how anxiety alters the regulation of postural control. Suffering from diseases that are connected with emotional negative load, such as asthma (panic-related risk factors associated with breathing problems) contribute to changes in postural control dynamics even in young people [18]. [PERSON] et al. [19] showed that internal monitoring which depends on paying greater attention to somatic sensations is connected with a decrease in postural control automaticity, and increased center of pressure regularity. Individuals with a high level of anxiety sensitivity pay greater attention to somatic sensations and have more detailed interoception than people with low-anxiety sensitivity [20]. Phenomena, being aware of bodily states, may point to less continuous inter-segmental postural coordination patterns, a more reactive pattern of forces to maintain a stance. It could be the opposed to a more active, continuous strategy, that relies on smaller corrections during a more automatic stance. On the other hand, [PERSON] et al. [21], [PERSON] et al. [22], and [PERSON] et al. [23] reported some reduced body sway in participants who were exposed to unpleasant pictures. Such reduced body sway has been interpreted as \"freezing behavior\" induced by a stress stimulus. At this point, it is worth mentioning that anxiety is one of the main manifestations of neuroticism. Thus, it can be assumed that the emotions assessed in the abovementioned works may be closely related to personality. Personality assessment is a field of psychology that seeks to understand and measure individual personality differences that characterize people across time. There are many personality models in circulation [24]. The most popular is the big-five model.