Stroke Cognitive Symptoms

Question 1

What causes an altered level of consciousness after stroke?

Answer 1

Widespread cortical involvement or damage to reticular activating systems, often involving frontal and parietal lobes, leading to reduced arousal and altered mental status.

Question 2

Why do learning and memory deficits occur after stroke?

Answer 2

Damage to frontal lobes (working memory, executive control) and parietal lobes (integration of information), impairing encoding, storage, and retrieval of information.

Question 3

What causes inattention after stroke?

Answer 3

Frontal lobe dysfunction, particularly prefrontal cortex damage, reducing attentional control and sustained focus.

Question 4

Why is information processing slowed after stroke?

Answer 4

Frontal–parietal network disruption, reducing efficiency of integrating and responding to sensory and cognitive inputs.

Question 5

What causes difficulty with problem solving after stroke?

Answer 5

Damage to the prefrontal cortex, which is responsible for executive functions such as planning, sequencing, reasoning, and decision-making.

Question 6

What causes behavioural problems after stroke?

Answer 6

Frontal lobe damage, particularly the prefrontal cortex, which normally regulates behaviour, emotions, and social appropriateness.

Question 7

Why can apathy occur after stroke?

Answer 7

Damage to frontal lobe motivational circuits, leading to reduced initiation, drive, and emotional engagement.

Question 8

What causes aggression or low frustration tolerance after stroke?

Answer 8

Prefrontal cortex damage, reducing emotional regulation and impulse control.

Question 9

Why are anxiety and depression common after stroke?

Answer 9

Combination of frontal lobe involvement, limbic system disruption, and psychological response to loss of function.

Question 10

What causes emotional lability after stroke?

Answer 10

Impaired frontal control over emotional expression, leading to exaggerated or inappropriate emotional responses.

Question 11

What causes loss of behavioural inhibition after stroke?

Answer 11

Damage to the prefrontal cortex, which normally suppresses inappropriate behaviours.

Question 12

Why does impulsivity occur after stroke?

Answer 12

Frontal lobe dysfunction, resulting in poor judgement, reduced insight, and impaired self-monitoring.