Studies in the 1950 s with a young man identified only as "H.M." resulted in the discovery of a

Studies in the 1950 s with a young man identified only as...

Key Concepts

Neuropsychological Case Studies

This concept involves the study of individuals with brain damage to understand how specific brain regions are associated with specific cognitive functions. The case of H.M. is a classic example, where researchers used detailed neuropsychological assessment to uncover the relationship between different types of memory and brain structures.

Multiple Memory Systems

This concept refers to the idea that memory is not a single, unified process but is divided into separate systems with distinct functions. H.M.'s case highlighted the dissociation between different memory systems, showing that some forms of memory (such as procedural memory) can remain intact even when others (such as declarative or episodic memory) are severely impaired.

Procedural Memory

Procedural memory is the system responsible for the learning and retention of skills and habits. Studies with H.M. demonstrated that while he struggled with forming new declarative memories, his ability to acquire motor skills and routines was preserved, providing key evidence for the existence of a separate procedural memory system.

Transcript

00:01 So this question is asking us to identify a term that is defined by a memory's physical trace or evidence of a physical form of a memory.

00:12 We're given four options, an ngram, lashly effect, do you throw a de -surrogue mcdermott paradigm, and flash -bold memory effect.

00:23 So looking at these words, given that we have a lot of eponyms, it's generally hard to gauge what they might mean just from the word that's given.

00:37 It would take a lot of background knowledge on who this effect is named after.

00:44 But looking at our last option, flashfold memory effect, that stands out to me because when i remember the flashfold memory effect, i see the word flash.

00:54 And flash to me reminds me of something quick, something that happens and goes like really, really quickly.

01:01 And it just, it's sudden.

01:05 And this kind of makes sense with the general meaning in that the flashfold memory or the flashfold memory effect refers to a very vivid, very vivid memory of something.

01:18 So, but rather than having like a whole series or a whole, i guess, full.

01:24 Of information of that moment, it's very, it's very quick, like a snapshot.

01:30 So when i think of flashbow, i think of like a snapshot.

01:33 And because of that, it more so refers to a very quick, but vivid memory.

01:42 This is very momentous.

01:44 So it's very much a moment in time that just comes to mind, and then it's pretty much lost afterwards, but it's very vivid.

01:53 And even though this, this is a memory.

01:58 It isn't a physical, i guess, tangible way of showing what a memory is.

02:04 Therefore, it is in our answer.

02:08 Moving up a bit, i'm looking at the lashley effect.

02:12 And although you can't really deduce this from what's given, i could tell you this.

02:18 Carl lashley was a psychologist, and he was actually looking for what could be a physical marker of a memory.

02:28 And he studied this with rats and moving, making the maneuver through a maze.

02:35 He was successful, he was unsuccessful, actually.

02:38 And however, the lashly effect refers to cortical lesions, as in parts of the brain that are damaged or even intentionally removed, being related to forms of acquisition and like the knowledge or storage of memory.

03:01 In other words, the lashley effect is referring to the fact that there are some parts of the brain that are associated with memory.

03:10 However, carl lashley wasn't able to actually detect a certain physical marker of that representing a memory.

03:18 So if i were to...

03:22 Have any quick keywords about the lashly effect, i'd see cortical lesions and then kind of leading to like memory and learning.

03:43 But this doesn't have much to do with actually discovering a physical marker...

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