P. Acetylcholine (i) Movement and pleasure sensation Q. Dopamine (ii) Sleep, anxiety, and appetite R. Serotonin (iii) Attention and memory S. Norepinephrine (iv) Arousal and mood
Neurotransmitter Functions Matching
To match the neurotransmitters with their functions, let's consider the primary roles of each:
- P. Acetylcholine: This neurotransmitter is crucial for muscle contraction. It also plays a significant role in cognitive functions such as attention and memory.
- Q. Dopamine: Often associated with the brain's reward system, dopamine is vital for feelings of pleasure. It is also essential for smooth voluntary movement.
- R. Serotonin: This neurotransmitter heavily influences mood regulation. It is also deeply involved in processes like sleep, anxiety, and appetite control.
- S. Norepinephrine: Known as a stress hormone and neurotransmitter, it increases alertness and arousal. It significantly impacts arousal and mood.
Based on these functions, the correct matching is:
- P matches with (iii) Attention and memory.
- Q matches with (i) Movement and pleasure sensation.
- R matches with (ii) Sleep, anxiety, and appetite.
- S matches with (iv) Arousal and mood.
Therefore, the correct combination is P-iii; Q-i; R-ii; S-iv.
Important Questions from Biological Basis of Behaviour Neurons Synapses
Consider the following two statements and choose the correct option.
S1: Patients with Broca's aphasia have trouble producing speech.
S2: Patients with Wernicke's aphasia have trouble understanding what others say.- ________ in both lobes of the brain are responsible for coordination and interpretation of information as well as higher mental processing.
- Match the concerned human nervous system with their associated functions.
P. Sympathetic (i) Carrying messages from Central Nervous
System to muscles and glandsQ. Parasympathetic (ii) Carrying messages from senses to Central
Nervous SystemR. Afferent (iii) Maintaining body functions under normal
conditionsS. Efferent (iv) Fight-or-flight system If Central Nervous System = Brain + Spinal Cord, then Peripheral Nervous System = ?
One, a sign language user with Broca's aphasia has difficulty producing signs. But the same signer has no difficulty in drawing pictures or picking up an object.
Two, a hearing person becomes paralysed in an accident and loses all motor ability, but is able to speak fluently.
What conclusions can we draw from these two cases about how language is represented in the brain?
