In close-quarters combat, hearing is the primary sense used to detect the presence of enemy soldiers, as it allows soldiers to pick up on subtle sounds like footsteps or weapon manipulation.

Hypervigilance is a state of heightened sensory awareness and alertness that soldiers often experience in combat situations, where they are constantly scanning their environment for potential threats.

Attentional bias refers to the tendency of soldiers to selectively focus on threat-related stimuli, making them more likely to misinterpret ambiguous stimuli as threats and leading to false alarms.

Tunnel vision is a perceptual phenomenon where soldiers' focus narrows to a small area, often the immediate task at hand, while ignoring peripheral stimuli, potentially leading to missed threats.

Vision is the primary sense used to detect distant threats, as it allows soldiers to see objects and movements at a distance, enabling them to identify potential hazards.

Altered perception refers to the distortion of time and space that soldiers may experience in combat situations, leading to a subjective sense of time passing more slowly or distances being greater.

Illusory correlation refers to the tendency of soldiers to perceive a relationship between events that are not actually connected, leading them to see threats where there are none.

Sensory overload occurs when soldiers are exposed to an overwhelming amount of sensory stimuli, such as loud noises or bright lights, leading to a heightened sensitivity and potential impairment of cognitive function.

Smell is the primary sense used to detect the presence of chemical or biological agents in the environment, as it allows soldiers to identify potentially harmful substances through their odor.

Sensory deprivation refers to the loss of sensory function, such as the inability to see or hear, that soldiers may experience in combat situations due to the overwhelming stress and sensory overload.

Confirmation bias refers to the tendency of soldiers to seek out information that confirms their existing beliefs or expectations, leading them to perceive threats as being more severe or imminent than they actually are.

Tactile hypervigilance refers to the heightened sensitivity to tactile stimuli that soldiers may experience in combat situations, leading to an exaggerated response to even minor touches or brushes against their skin.

Touch is the primary sense used to detect the presence of obstacles or uneven terrain, as it allows soldiers to feel their surroundings and identify potential hazards that may impede their movement.

Altered perception can include distortions of body image, where soldiers may perceive their limbs as being longer or shorter than they actually are, due to the stress and sensory overload of combat.

Illusory correlation refers to the tendency of soldiers to perceive patterns or connections between events that are not actually related, leading them to draw false conclusions or misinterpretations based on these perceived correlations.