Compare and contrast the two types of interference. |...

Name: Problem 17, Chapter 8: Psychology Openstax
Uploaded: 2020-06-22T23:02:51-08:00
Duration: 4 min 46 s
Channel: Alyssa Mae L.
Description: Compare and contrast the two types of interference.

Key Concepts

Wave Interference

Wave interference is a fundamental phenomenon in physics where two or more waves overlap, leading to a new wave pattern. This concept is crucial for understanding how waves interact, whether amplifying or reducing the resultant amplitude depending on their alignment and phase differences.

Constructive Interference

Constructive interference occurs when the peaks (crests) and valleys (troughs) of two or more waves coincide, resulting in an increased amplitude. This reinforcement of waves leads to phenomena such as brighter fringes in light patterns or louder sound, highlighting the additive effect when waves are in phase.

Destructive Interference

Destructive interference happens when the peak of one wave aligns with the trough of another, effectively reducing or completely cancelling out the wave amplitude. This cancellation process is essential for understanding how certain regions experience diminished energy or silence, as seen in the formation of dark fringes in optical interference patterns.

Transcript

00:01 So this problem is asking us to compare and contrast the two types of interference, which are proactive and retroactive interference.

00:08 So i have a venn diagram here to show us that.

00:12 So for starters, we're going to start with the middle or what they have in common in that they're both types of interference, obviously.

00:22 And what this means is that they're both dealing with some sort of information that is in our memory, but for some reason we're not able to.

00:30 To access it.

00:32 So basically just i'd note this with inaccessibility to memory.

00:49 And with proactive and retroactive interference specifically, it deals with old memories, the formation of old memories and the reconstruction of old, of the formation of new memories and the reconstruction of old memories is what i mean to say.

01:04 So this is where it kind of gets.

01:07 It's confusing because proactive and retroactive are kind of opposites in the way that if you were to flip the definitions of either of them, you get the other.

01:20 So it makes them more likely to get confused.

01:24 So i'm going to start with retroactive.

01:26 So retroactive refers to new info, hindering old, while proactive, which is kind of the opposite of that, is old info hindering the new.

01:55 And i think i found a clever way of memorizing this, but obviously it's up to whatever sticks for everyone.

02:02 So i'm just going to share you how i memorized and differentiate between retroactive and proactive.

02:10 So i first hone in on retroactive because that's the most notable to me in what stands out in the meeting and i'm able to make more connections with it.

02:19 So when i see retroactive, i see the prefix of retro.

02:23 And retro is a latin prefix meaning backwards.

02:26 And for me, backwards is kind of connected to the time.

02:29 If we were thinking about time on the spectrum, going backwards, we mean the past...

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