Attention Part 2 Flashcards
when someone ignores one half of their visual field due to brain damage
Spatial neglect
If you and a friend are at the zoo, and your friend has ____, they won’t notice anything on one side (like the left side) of their view, even if it’s right in front of them.
Cause: This happens because of damage to specific parts of the brain, usually the right parietal or frontal lobe.
spatial neglect
Drawing Test: If asked to copy pictures, patients might only draw one side, showing they don’t see or focus on the other side.
spatial neglect
Extinction: When both sides of the visual field have stimuli, people with ___ may ignore the side opposite their brain lesion. They might still notice single-side stimuli but have trouble shifting their attention between the two sides
spatial neglect
Testing: To test for ___, patients might be asked to draw lines on a page. Those with right hemisphere damage might draw the lines to the right side of the page, missing the left side, and those with left hemisphere damage might do the opposite.
spatial neglect
Memory: This issue can also affect memory. For example, patients might describe only one side of a familiar place, even though they know it well from different angles.
spatial neglect
Brain Areas: Recent studies suggest that ___ is linked to parts of the brain such as the posterior superior temporal gyrus, insula, basal ganglia, and the superior longitudinal fasciculus in the parietal lobe.
spatial neglect
involves our becoming accustomed to a stimulus so that we gradually pay less and less attention to it.
Habituation
We can exert some conscious control over ___, unlike sensory adaptation, which occurs in the sense organs and is beyond our control.
habituation
a change in a familiar stimulus prompts us to start noticing the stimulus again
Dishabituation
is a lessening of attention to a stimulus that is not subject to conscious control. Occurs directly in sense organ not in the brain.
Sensory adaptation
Stimuli with more variation (e.g., changing music) are harder to habituate to than constant stimuli (e.g., a fan’s hum).
Internal Variation
The level of physiological excitement or readiness for action can influence habituation
Subjective Arousal
a degree of physiological excitation, responsivity, and readiness for action, relative to a baseline
Arousal
often is measured in terms of heart rate, blood pressure, electroencephalograph (EEG) patterns, and other physiological signs.
Arousal
___ allows us to ignore repetitive, non-threatening stimuli in our environment, enabling us to focus on more important tasks.
Habituation
Without ___, we would be overwhelmed by the sheer volume of sensory information we encounter daily. By becoming accustomed to familiar stimuli, we prevent sensory overload, which could otherwise lead to stress, anxiety, and difficulty functioning in busy environments.
habituation
___ allows us to quickly detect changes in our environment that might signal danger or require our attention. For example, while we might ignore the usual traffic noise, the sudden sound of screeching brakes would immediately catch our attention, prompting us to respond appropriately.
Habituation
___ helps us sleep in environments with consistent background noises, like living near a busy street or airport. Over time, we get used to these sounds and can sleep soundly without being disturbed.
Habituation
____ also plays a role in emotional regulation. By becoming accustomed to certain emotional stimuli or recurring social situations, we can manage our emotional reactions more effectively, maintaining calm and composure in familiar contexts.
Habituation
___ helps us adapt to new environments by allowing us to gradually become comfortable with unfamiliar stimuli. This is essential for learning, as it frees up cognitive resources to focus on new information once we’ve adjusted to the surroundings.
Habituation
___ can reduce anxiety by helping us become less sensitive to stressors over time. For example, a person who is initially anxious about public speaking may habituate to the experience after repeated exposure, leading to reduced anxiety in future situations.
Habituation