I have it on the tip of my tongue … let’s see if I can remember …

Memory! Something extraordinary that unfortunately, over the years, begins to weaken.

What is memory?

We could define it as the brain’s ability to retain information and retrieve it voluntarily.

Memory is a system made up of three warehouses or related structures: sensory memory, short-term memory and long-term memory. Incoming information follows a sequential route that leads from one to another warehouse.

Sensory memories (MS) is a set of memory systems responsible for temporarily retaining information from each of the sense organs: sight (iconic memory), hearing (echoic memory), touch (haptic memory).

Iconic memory is a system that is limited to making an exact record of the physical characteristics of the visual stimulus (spatial position, size, color, shape). A significant part of the iconic storage would take place at the level of the photoreceptor cells of the retina: the rods (responsible for black and white vision) and, to a lesser extent, the cones (which allow color vision). Echoic memory processes sound rather than visual information. Visual stimulation (for example, a photograph) takes place in a spatial dimension that allows the person to capture information instantly, at a glance. In contrast, auditory stimulation (for example, a conversation) occurs in a temporal dimension that requires a sequenced presentation of the information contained in it.

Haptic memory is a memory store that works with tactile information, and therefore with sensations such as pain, heat, itching, tickling, pressure or vibration.

Information is transferred from the sensory stores to another memory structure, known as primary or short-term memory (MCP). The MCP has a longer persistence time than that of the sensory stores, although it only covers a few seconds (between 15-30 sec). Such time interval can be extended by means of reviewing or repeating strategies of the material retained in this warehouse.

The data encoded in the MCP can be transferred to a third memory store, the long-term memory (MLP) or secondary memory. This memory structure has unlimited storage capacity; In it, as a library, information is organized, thus facilitating access when appropriate. The information contained in the MLP is permanent.


What is iconic memory?

What is echoic memory?

What is haptic memory

What are reviewing strategies useful for?


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