Biological approach (intro)

Imagine your body is a super-advanced, living computer. The Biological Approach in psychology is like saying, 'To understand how this computer works (how you think, feel, and act), we need to look at its hardware and software!'

• Hardware: This means your brain, your nerves, your hormones, and even your genes (the special instructions you inherit from your parents).
• Software: This is your mind, your thoughts, and your feelings – all powered by that hardware.

So, this approach believes that all our thoughts, feelings, and behaviours (like being happy, scared, or even how you learn) are caused by physical things happening inside your body. It's not magic; it's biology!

Think of it like this: If your phone is acting weird, the first thing you might check is if the battery is low, or if there's a problem with its internal parts. The Biological Approach does the same for humans – it looks at the 'internal parts' (our biology) to explain our 'behaviour'.

Let's take the example of feeling anxious (that's when you feel worried or nervous). Imagine you have a big test coming up.

1. Your brain sends a signal: Your brain, specifically a part called the amygdala (it's like your brain's alarm bell), notices the 'threat' of the test.
2. Hormones kick in: Your brain then tells other parts of your body to release special chemical messengers called hormones. One important one is adrenaline (it's like a super-speed boost for your body).
3. Physical changes: Adrenaline makes your heart beat faster, your breathing quicken, and your muscles tense up. This is your body getting ready to 'fight or flight' (run away or face the danger).
4. You feel anxious: All these physical changes are what you experience as feeling anxious – butterflies in your stomach, shaky hands, a racing heart. The Biological Approach says that these physical, biological reactions are the cause of you feeling anxious, not just a symptom.

Here's how the Biological Approach generally explains behaviour:

1. Identify a behaviour: First, we observe a specific behaviour, like someone being very shy or very aggressive.
2. Look for biological roots: Then, we investigate if there are any physical things in the body that could be causing it.
3. Check the brain: This might involve looking at brain structures (different parts of the brain) or neurotransmitters (chemical messengers in the brain).
4. Consider genes: We also explore if the person inherited certain genes (instructions from parents) that make them more likely to behave that way.
5. Examine hormones: We might check if certain hormones (chemical messengers in the bloodstream) are influencing their mood or actions.
6. Connect the dots: Finally, we try to link these biological factors directly to the observed behaviour, explaining why it happens.

The Biological Approach has some core beliefs, like the rules of a game:

• Everything psychological is first physiological: This means that every thought, feeling, and behaviour (psychological) must have a physical, biological cause (physiological). It's like saying every app on your phone needs the phone's hardware to run.
• Genetic basis of behaviour: They believe that some of our characteristics and behaviours are passed down from our parents through genes. So, just like you might inherit your eye colour, you might inherit a tendency to be more outgoing or more prone to anxiety.
• Evolutionary influences: This idea suggests that some behaviours we have today are because they helped our ancestors survive and reproduce a long, long time ago. For example, fearing spiders might have kept our ancestors safe from poisonous bites.
• Brain structure and neurochemistry: They focus heavily on how different parts of the brain work and how neurotransmitters (chemical messengers in the brain) affect our moods and actions. Think of neurotransmitters like tiny mail carriers delivering messages between brain cells.

Here are some traps students often fall into and how to dodge them:

• ❌ Mistake: Thinking biology is the only thing that matters. Students sometimes forget other approaches.
  • ✅ How to avoid: Remember that while biology is super important, other things like how you were raised (environment) or your thoughts (cognition) also play a role. Psychology is complex!
• ❌ Mistake: Using jargon without explaining it. Saying 'neurotransmitters affect behaviour' without saying what neurotransmitters are.
  • ✅ How to avoid: Always explain key terms. Imagine you're explaining it to someone who's never heard the word before. For example, 'Neurotransmitters are chemical messengers in the brain that carry signals between nerve cells.'
• ❌ Mistake: Just listing biological parts without linking them to behaviour. For example, 'The brain is involved.'
  • ✅ How to avoid: Be specific! Explain how a specific part of the brain (e.g., the amygdala) or a specific chemical (e.g., adrenaline) causes or influences a particular behaviour (e.g., fear or anxiety).