Working Memory & Chunking

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Questions and Answers

Sergio Della Sala et al's 19_____ study into m_____ r_____ and w___ing m___y required participants to look at a t_____ p_____ (similar in appearance to a c_____) for _____ s_____s before being asked to r_____ the p_____ from memory

99 mental rotation working memory test pattern crossword 3 seconds replicate pattern

In S_____ D_____ S_____ et al's 19_____ study into w___ing m___y and m_____ r_____, the t_____ p_____s used ranged from a x m_____ consisting of _____ squares, to a larger x m_____ consisting of _____ squares, / of which would be s_____d

Sergio Della Sala 99 working memory mental rotation test patterns 2x2 matrix 2 5x6 matrix 15 1/2 shaded

S_____ D_____ S_____ et al's 19_____ study into m_____ r_____ and w___ing m___y found that participants were able to complete patterns consisting of an a_____ of _____ shaded squares before making e_____s, with the h_____ results compared to L_____ and V_____l's S_____ experiment likely coming down to v_____l c_____ing

Sergio Della Sala 99 mental rotation working memory average of 9 errors higher Luck Vogel's STM visual chunking

L_____ B_____'s 19_____ experiment demonstrated that o_____ing the v_____ s_____ p_____ can results in d_____ v_____ m___y p_____

<p>Lee Brooks' 1968 overloading visuospatial sketch pad disrupted visual memory performance</p> Signup and view all the answers

L_____ B_____'s 19_____ experiment tasked participants with t_____ing the o_____ of an i_____y l_____r '' that possesses both 'o' c_____s and 'i_____' c_____s while simultaneously p_____ing in the s_____ d_____

<p>Lee Brooks' 1968 tracing outline imaginary letter 'F' outside corners inside corners pointing same direction</p> Signup and view all the answers

The s_____ c_____ of L_____ B_____'s 19_____ experiment tasked participants with t_____ing the l_____ '' in their m's e_____ again, but while simultaneously st_____ing o_____ l_____ whether each corner was i_____ or o_____

<p>second condition Lee Brooks' 1968 tracing letter 'F' mind's eye stating out loud in out</p> Signup and view all the answers

The results of L_____ B_____'s 19_____ experiment found that the t_____ing condition was s_____ly e_____r for most people than the p_____ing condition due to the fact that b_____ t_____s relied on the v_____ s_____ p_____, thus o_____ing it

<p>Lee Brooks' 1968 talking significantly easier pointing both tasks visuospatial sketch pad overloading</p> Signup and view all the answers

The c_____ e_____ is the c_____ c_____ of the w___ing m___y s_____ in that is c_____s how i_____ is u_____ by the p_____ l_____ and v_____ s_____ p_____

<p>central executive control center working memory system coordinates information used phonological loop visuospatial sketch pad</p> Signup and view all the answers

B_____y describes the c_____ e_____ as being an a_____ c_____ in that it determines how a_____ is f_____ on a s_____ t_____, how it is d_____d b_____ t_____ t_____s, and how it s_____ b_____ t_____s generally, meaning it is part of e_____ a_____n

<p>Baddeley central executive attention controller attention focused specific task divided between two tasks switched between tasks executive attention</p> Signup and view all the answers

Studies on patients with b_____ d_____ show that the f_____ l_____ plays a c_____ r_____ in working memory, as patients with f_____ l_____ d_____ have problems c_____ing thier a_____n.

<p>brain damage frontal lobe central role frontal lobe damage controlling attention</p> Signup and view all the answers

A typical b_____ seen in p_____ with f_____ l_____ d_____ is known as p_____: r_____ly p_____ing the s_____ a_____ or t_____, even if it is n_____ achieving the desired g_____

<p>behavior patients frontal lobe damage perseveration repeatedly performing same action thought not achieving goal</p> Signup and view all the answers

A person with f_____ l_____ d_____ often f_____s to r_____ c_____ly to c_____s in d_____s for tasks to their i_____ed c_____ e_____ failing to adequately c_____ a_____

<p>frontal lobe damage fails respond correctly changes directions impaired central executive control attention</p> Signup and view all the answers

B_____y added a new component to the model of w___ing m___y in 20_____ that is currently a w_____-i__ p_____s known as the e_____ b_____

<p>Baddeley working memory 2000 work-in progress episodic buffer</p> Signup and view all the answers

B_____ly's 20_____ addendum to the model of working memory, the e_____ b_____, which seemingly helps to i_____ c_____y to h_____ i_____ within W_____ by working d_____ly with L_____ as some kind of i_____

<p>Baddeley's 2000 episodic buffer increase capacity hold information WM directly LTM interchange</p> Signup and view all the answers

The history of r_____ on W_____ and the b_____ has been dominated by the p_____l c_____, the most exemplary case is of which is P_____s G_____ and the t_____ing r_____ accident that took place on S_____ , 18

<p>research WM brain prefrontal cortex Phineas Gage tampering rod Sept 13 1848</p> Signup and view all the answers

Although it's unclear whether reports of G_____'s p_____y p_____ to the a_____ were accurate or not, he was report after to demonstrate l_____ i_____ c_____, p_____ ability to p_____, and p_____ s_____ s_____s

<p>Gage's personality prior accident low impulse control poor ability plan poor social skills</p> Signup and view all the answers

G_____'s case gave rise to the association between f_____ l_____ are involved in m_____ f_____s to do with p_____y and p_____ing

<p>Gage's frontal lobe mental functions personality planning</p> Signup and view all the answers

G_____ R_____'s 19_____ and 19_____ experiments used a procedure known as the d_____d r_____ t_____ in order to study the effects of r_____ing the p_____ c_____ in m_____s

<p>Goldman-Rakic's 1990 1992 delayed response task removing prefrontal cortex monkeys</p> Signup and view all the answers

In G_____ R_____'s 19_____ and 19_____ d_____d r_____ t_____ experiments, the m_____s were presented with t_____ f_____ w_____s, with f_____ present in only o_____, before the w_____s were c_____ and a s_____ is lowered to b_____ their v_____ for a while

<p>Goldman-Rakic's 1990 1992 delayed response task monkeys two food wells food one wells covered screen block view</p> Signup and view all the answers

In G_____ R_____'s 19_____ and 19_____ d_____d r_____ t_____ experiments, when the s_____ was once again raised, the m_____s were tasked with s_____ing the c_____ f_____ w_____, which was still c_____d

<p>Goldman-Rakic's 1990 1992 delayed response task screen monkeys selecting correct food well covered</p> Signup and view all the answers

In G_____ R_____'s 19_____ and 19_____ d_____d r_____ t_____ experiments, m_____s with their P_____ r_____d selected the c_____ f_____ w_____ only about % of the time, equivalent to c

<p>Goldman-Rakic's 1990 1992 delayed response task monkeys PFC removed correct food well 50% chance</p> Signup and view all the answers

G_____ R_____'s m_____ experiments provide e_____ that the P_____ is important for h_____ing i_____ for b_____ p_____ of time

<p>Goldman-Rakic's monkey evidence PFC holding information brief periods</p> Signup and view all the answers

_____ _____ _____ et al's 19___ study into _____ _____ and _____ing _____y required participants to look at a _____ _____ (similar in appearance to a _____) for ___ _____s before being asked to _____ the _____ from memory

<p>Sergio Della Sala et al's 1999 study into mental rotation and working memory required participants to look at a test pattern (similar in appearance to a crossword) for 3 seconds before being asked to replicate the pattern from memory</p> Signup and view all the answers

In _____ _____ _____ et al's 19___ study into _____ing _____y and _____ _____ , the _____ ___s used ranged from a x _____ consisting of ___ squares, to a larger x _____ consisting of ___ squares, / of which would be _____d

<p>In Sergio Della Sala et al's 1999 study into working memory and mental rotation, the test patterns used ranged from a 2x2 matrix consisting of 4 squares, to a larger 5x6 matrix consisting of 30 squares, 1/2 of which would be shaded</p> Signup and view all the answers

_____ _____ _____ et al's 19___ study into _____ _____ and _____ing _____y found that participants were able to complete patterns consisting of an _____ of ___ shaded squares before making _____s, with the _____ results compared to _____ and _____'s _____ experiment likely coming down to _____ _____ing

<p>Sergio Della Sala et al's 1999 study into mental rotation and working memory found that participants were able to complete patterns consisting of an average of 9 shaded squares before making errors, with the higher results compared to Luck and Vogel's STM experiment likely coming down to visual chunking</p> Signup and view all the answers

_____ __'s 19 experiment demonstrated that _____ing the _____ _____ _____ can results in _____ _____ _____ ____

<p>Lee Brooks' 1968 experiment demonstrated that overloading the visuospatial sketch pad can results in disrupted visual memory performance</p> Signup and view all the answers

_____ __'s 19 experiment tasked participants with _____Ing the _____ of an ___y r '' that possesses both '' s and '' _____s while simultaneously _____ing in the _____ _____

<p>Lee Brooks' 1968 experiment tasked participants with tracing the outline of an imaginary letter 'F' that possesses both 'outside' corners and 'inside' corners while simultaneously pointing in the same direction</p> Signup and view all the answers

The _____ _____ of _____ __'s 19 experiment tasked participants with ___ing the _____ '' in their _____'s _____ again, but while simultaneously st___ing _____ _____ whether each corner was _____ or _____

<p>The second condition of Lee Brooks' 1968 experiment tasked participants with tracing the letter 'F' in their mind's eye again, but while simultaneously stating out loud whether each corner was in or out</p> Signup and view all the answers

The results of _____ __'s 19 experiment found that the _____ing condition was _____ly _____r for most people than the _____ing condition due to the fact that _____ _____s relied on the _____ _____ _____, thus _____ing it

<p>The results of Lee Brooks' 1968 experiment found that the talking condition was significantly easier for most people than the pointing condition due to the fact that both tasks relied on the visuospatial sketch pad, thus overloading it</p> Signup and view all the answers

The _____ _____ is the _____ _____ of the _____ing _____ _____ in that is _____s how _____ is _____ by the _____ _____ and _____ _____ _____

<p>The central executive is the control center of the working memory system in that is coordinates how information is used by the phonological loop and visuospatial sketch pad</p> Signup and view all the answers

_____y describes the _____ _____ as being an _____ _____ in that it determines how _____ is _____d on a _____ _____, how it is _____d _____ _____ _____, and how it _____s _____ _____s generally, meaning it is part of _____ _____

<p>Baddeley describes the central executive as being an attention controller in that it determines how attention is focused on a specific task, how it is divided between two tasks, and how it switches between tasks generally, meaning it is part of executive attention</p> Signup and view all the answers

Studies on patients with _____ _____ show that the _____ _____ plays a _____ _____ in working memory, as patients with _____ _____ _____ have problems _____ing _____ ____.

<p>Studies on patients with brain damage show that the frontal lobe plays a central role in working memory, as patients with frontal lobe damage have problems controlling their attention.</p> Signup and view all the answers

A typical _____ seen in _____ with _____ _____ _____ is known as _____: _____ly _____ing the _____ _____ or _____, even if it is _____ achieving the desired _____

<p>A typical behavior seen in patients with frontal lobe damage is known as perseveration: repeatedly performing the same action or thought, even if it is not achieving the desired goal</p> Signup and view all the answers

A person with _____ _____ _____ often _____s to _____ _____ly to _____s in _____s for tasks to their _____ed _____ _____ failing to adequately _____ _____

<p>A person with frontal lobe damage often fails to respond correctly to changes in directions for tasks to their impaired central executive failing to adequately control attention</p> Signup and view all the answers

_____y added a new component to the model of _____ing __y in 20 that is currently a - _____s known as the _____ _____

<p>Baddeley added a new component to the model of working memory in 2009 that is currently a work-in progress known as the episodic buffer</p> Signup and view all the answers

ly's 20 addendum to the model of working memory, the _____ , which seemingly helps to i y to h i__ within W__ by working ly with L as some kind of i__

<p>Baddeley's 2009 addendum to the model of working memory, the episodic buffer, which seemingly helps to increase capacity to hold information within WM by working directly with LTM as some kind of interchange</p> Signup and view all the answers

The history of _____ on W___ and the _____ has been dominated by the _____l _____, the most exemplary case is of which is _____s _____ and the ____ing _____ accident that took place on _____ , 18

<p>The history of research on WM and the brain has been dominated by the prefrontal cortex, the most exemplary case is of which is Phineas Gage and the tampering rod accident that took place on Sept 13, 1848</p> Signup and view all the answers

Although it's unclear whether reports of _____'s _____y _____ to the _____ were accurate or not, he was report after to demonstrate _____ _____ _____, _____ ability to _____, and _____ _____ _____

<p>Although it's unclear whether reports of Gage's personality prior to the accident were accurate or not, he was report after to demonstrate low impulse control, poor ability to plan, and poor social skills</p> Signup and view all the answers

_____'s case gave rise to the association between _____ _____ are involved in _____ _____s to do with _____y and _____ing

<p>Gage's case gave rise to the association between frontal lobe are involved in mental functions to do with personality and planning</p> Signup and view all the answers

-'s 19___ and 19___ experiments used a procedure known as the _____d _____ _____ in order to study the effects of _____ing the _____ _____ in _____s

<p>Goldman-Rakic's 1990 and 1992 experiments used a procedure known as the delayed response task in order to study the effects of removing the prefrontal cortex in monkeys</p> Signup and view all the answers

In -'s 19__ and 19___ _____d _____ _____ experiments, the _____s were presented with _____ _____ _____, with _____ present in only _____, before the _____s were _____ and a _____ is lowered to _____ their _____ for a while

<p>In Goldman-Rakic's 1990 and 1992 delayed response task experiments, the monkeys were presented with two food wells, with food present in only one, before the wells were covered and a screen is lowered to block their view for a while</p> Signup and view all the answers

In -'s 19__ and 19___ _____d _____ _____ experiments, when the _____ was once again raised, the _____s were tasked with _____ing the _____ _____ _____, which was still _____d

<p>In Goldman-Rakic's 1990 and 1992 delayed response task experiments, when the screen was once again raised, the monkeys were tasked with selecting the correct food well, which was still covered</p> Signup and view all the answers

In -'s 19__ and 19___ _____d _____ _____ experiments, _____s with their _____ _____d selected the _____ _____ _____ only about ___% of the time, equivalent to _____

<p>In Goldman-Rakic's 1990 and 1992 delayed response task experiments, monkeys with their PFC removed selected the correct food well only about 50% of the time, equivalent to chance</p> Signup and view all the answers

-'s _____ experiments provide _____ that the _____ is important for _____ing _____ for _____ _____ of time

<p>Goldman-Rakic's monkey experiments provide evidence that the PFC is important for holding information for brief periods of time</p> Signup and view all the answers

Sergio Della Sala et al's 1999 study into mental rotation and working memory required participants to look at a test pattern (similar in appearance to a crossword) for _____ seconds before being asked to _____ the pattern from memory.

<p>3, replicate</p> Signup and view all the answers

In Sergio Della Sala et al's 1999 study into working memory and mental rotation, the test patterns used ranged from a x matrix consisting of _____ squares, to a larger x matrix consisting of _____ squares, / of which would be shaded.

<p>2x2, 2, 5x6, 15, 1/2</p> Signup and view all the answers

Sergio Della Sala et al's 1999 study into mental rotation and working memory found that participants were able to complete patterns consisting of an average of _____ shaded squares before making errors, with the _____ results compared to Luck and Vogel's STM experiment likely coming down to visual _____.

<p>9, higher, chunking</p> Signup and view all the answers

Lee Brooks's 1968 experiment demonstrated that _____ the visuospatial sketch pad can result in _____ visual memory performance.

<p>overloading, disrupted</p> Signup and view all the answers

Lee Brooks's 1968 experiment tasked participants with _____ the outline of an imaginary letter '' that possesses both '' corners and '_____' corners while simultaneously _____ in the same direction.

<p>tracing, F, outside, inside, pointing</p> Signup and view all the answers

The second condition of Lee Brooks's 1968 experiment tasked participants with tracing the letter '_____' in their mind's eye again, but while simultaneously _____ _____ _____ whether each corner was in or out.

<p>F, stating out loud</p> Signup and view all the answers

The results of Lee Brooks's 1968 experiment found that the _____ condition was significantly easier for most people than the _____ condition due to the fact that both tasks (in the latter condition) relied on the _____ _____ _____, thus _____ it.

<p>talking, pointing, visuospatial sketch pad, overloading</p> Signup and view all the answers

The _____ _____ is the control center of the working memory system in that it _____ how information is used by the _____ _____ and _____ _____ _____.

<p>central executive, coordinates, phonological loop, visuospatial sketch pad</p> Signup and view all the answers

Baddeley describes the central executive as being an _____ _____ in that it determines how attention is focused on a specific task, how it is _____ between two tasks, and how it _____ between tasks generally, meaning it is part of _____ _____.

<p>attention controller, divided, switches, executive attention</p> Signup and view all the answers

Studies on patients with brain damage show that the _____ _____ plays a central role in working memory, as patients with _____ _____ damage have problems _____ their attention.

<p>frontal lobe, frontal lobe, controlling</p> Signup and view all the answers

A typical behavior seen in patients with frontal lobe damage is known as _____: _____ performing the same action or thought, even if it is not achieving the desired goal.

<p>perseveration, repeatedly</p> Signup and view all the answers

A person with frontal lobe damage often fails to respond correctly to changes in _____ for tasks due to their impaired _____ _____ failing to adequately control attention.

<p>directions, central executive</p> Signup and view all the answers

Baddeley added a new component to the model of working memory in _____ that is currently a work-in progress known as the _____ _____.

<p>2000, episodic buffer</p> Signup and view all the answers

Baddeley's 2000 addendum to the model of working memory, the _____ _____, seemingly helps to _____ capacity to hold information within WM by working _____ with LTM as some kind of _____.

<p>episodic buffer, increase, directly, interchange</p> Signup and view all the answers

The history of research on WM and the brain has been dominated by the _____ _____, the most exemplary case of which is _____ _____ and the tampering rod accident that took place on Sept , 18.

<p>prefrontal cortex, Phineas Gage, 13, 1848</p> Signup and view all the answers

Although it's unclear whether reports of Gage's personality prior to the accident were accurate or not, he was reported after to demonstrate _____ impulse control, _____ ability to plan, and _____ social skills.

<p>low, poor, poor</p> Signup and view all the answers

Gage's case gave rise to the association that the _____ _____ is involved in mental functions related to _____ and _____.

<p>frontal lobe, personality, planning</p> Signup and view all the answers

Goldman-Rakic's 19_____ and 19_____ experiments used a procedure known as the _____ _____ task in order to study the effects of removing the _____ _____ in monkeys.

<p>90, 92, delayed response, prefrontal cortex</p> Signup and view all the answers

In Goldman-Rakic's 1990 and 1992 delayed response task experiments, the monkeys were presented with _____ food wells, with food present in only _____, before the wells were covered and a _____ was lowered to block their view for a while.

<p>two, one, screen</p> Signup and view all the answers

In Goldman-Rakic's 1990 and 1992 delayed response task experiments, when the screen was once again raised, the monkeys were tasked with _____ the correct food well, which was still _____.

<p>selecting, covered</p> Signup and view all the answers

In Goldman-Rakic's 1990 and 1992 delayed response task experiments, monkeys with their _____ removed selected the correct food well only about _____% of the time, equivalent to _____.

<p>PFC (prefrontal cortex), 50, chance</p> Signup and view all the answers

Goldman-Rakic's monkey experiments provide evidence that the _____ is important for _____ information for brief periods of time.

<p>PFC (prefrontal cortex), holding</p> Signup and view all the answers

Flashcards

Sergio Della Sala et al's 1999 study

S___ D___ S___ et al's 19___ study into m____ r____ and w___ing m___y required participants to look at a t___ p___ (similar in appearance to a c____) for ___ s____s before being asked to r____ the p____ from memory

Sergio Della Sala et al's Matrix size

In S___ D___ S___ et al's 19___ study into w___ing m___y and m____ r____, the t___ p___s used ranged from a x_ m___ consisting of ___ squares, to a larger x m___ consisting of ___ squares, /_ of which would be s____d

Sergio Della Sala et al's Results

S___ D___ S___ et al's 19___ study into m____ r____ and w___ing m___y found that participants were able to complete patterns consisting of an a___ of ___ shaded squares before making e____s, with the h___ results compared to L__ and V___l's S___ experiment likely coming down to v___l c___ing

Lee Brooks'1968

L___ B___'s 19___ experiment demonstrated that o___ing the v___ s___ p___ can results in d___ v___ m___y p____

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Lee Brooks' Letter F task

L___ B___'s 19___ experiment tasked participants with t___Ing the o____ of an i___y l___r '' that possesses both 'o_' c___s and 'i____' c___s while simultaneously p___ing in the s___ d___

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Lee Brooks' Speaking Corner Task

The s___ c___ of L___ B___'s 19___ experiment tasked participants with t___ing the l___ '' in their m_'s e___ again, but while simultaneously st___ing o___ l___ whether each corner was i___ or o___

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Lee Brooks' Results

The results of L___ B___'s 19___ experiment found that the t___ing condition was s___ly e___r for most people than the p___ing condition due to the fact that b___ t____s relied on the v____ s_____ p____, thus o___ing it

Signup and view all the flashcards

Central Executive

The c___ e____ is the c___ c___ of the w___ing m___y s____ in that is c___s how i____ is u___ by the p___ l___ and v___ s___ p___

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Baddeley's Central Executive

B____y describes the c___ e____ as being an a___ c___ in that it determines how a___ is f____ on a s___ t___, how it is d___d b___ t___ t___s, and how it s___ b___ t___s generally, meaning it is part of e___ a___n

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Brain Damage

Studies on patients with b___ d___ show that the f___ l___ plays a c___ r___ in working memory, as patients with f___ l___ d___ have problems c___ing thier a___n.

Signup and view all the flashcards

Perseveration

A typical b____ seen in p____ with f___ l___ d____ is known as p____: r___ly p___ing the s___ a___ or t____, even if it is n___ achieving the desired g___

Signup and view all the flashcards

Frontal Lobe Damage

A person with f___ l___ d___ often f____s to r___ c___ly to c____s in d____s for tasks to their i____ed c___ e____ failing to adequately c____ a___

Signup and view all the flashcards

Episodic Buffer

B___y added a new component to the model of w___ing m___y in 20___ that is currently a w___-i__ p___s known as the e____ b____

Signup and view all the flashcards

Episodic Buffer's Function

B___ly's 20___ addendum to the model of working memory, the e___ b___, which seemingly helps to i___ c___y to h___ i____ within W__ by working d___ly with L___ as some kind of i___

Signup and view all the flashcards

Phineas Gage

The history of r___ on W___ and the b___ has been dominated by the p___l c___, the most exemplary case is of which is P___s G___ and the t___ing r___ accident that took place on S___ , 18_

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Gage's Personality Post-Accident

Although it's unclear whether reports of G___'s p___y p___ to the a___ were accurate or not, he was report after to demonstrate l___ i___ c___, p___ ability to p___, and p___ s__ s___s

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Frontal Lobe Functions

G___'s case gave rise to the association between f___ l___ are involved in m___ f___s to do with p___y and p___ing

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Goldman-Rakic's Experiments

G___ R___'s 19__ and 19___ experiments used a procedure known as the d___d r___ t___ in order to study the effects of r___ing the p____ c___ in m___s

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Delayed Response Task Setup

In G___ R___'s 19__ and 19___ d___d r___ t___ experiments, the m___s were presented with t___ f___ w___s, with f___ present in only o____, before the w___s were c____ and a s___ is lowered to b___ their v___ for a while

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Delayed Response Task Phase 2

In G___ R___'s 19__ and 19___ d___d r___ t___ experiments, when the s___ was once again raised, the m___s were tasked with s___ing the c___ f___ w___, which was still c____d

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Delayed Response Task Results

In G___ R___'s 19__ and 19___ d___d r___ t___ experiments, m___s with their P___ r___d selected the c___ f___ w___ only about % of the time, equivalent to c_

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Goldman-Rakic's Conclusion

G___ R___'s m___ experiments provide e___ that the P___ is important for h___ing i___ for b__ p___ of time

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Study Notes

  • Study notes for Working Memory P2 + damage to working memory

Sergio Della Sala et al's 1999 Study

  • This study explored mental rotation and working memory.
  • Participants viewed a test pattern resembling a crossword for 3 seconds.
  • They were then asked to replicate the pattern from memory.
  • Test patterns ranged from a 2x2 matrix (4 squares) to a 5x6 matrix (30 squares).
  • 1/2 of the squares in the matrices were shaded.
  • Participants accurately completed patterns averaging 9 shaded squares before making errors.
  • Higher results compared to Luck and Vogel's STM experiment were likely due to visual chunking.

Lee Brooks' 1968 Experiment

  • Demonstrated that overloading the visuospatial sketchpad disrupts visual memory performance.
  • Participants traced the outline of an imaginary letter "F," noting outside and inside corners while simultaneously pointing in the same direction.
  • A second condition involved tracing the letter "F" in their mind's eye.
  • Simultaneously participants stated out loud whether each corner was "in" or "out."
  • The talking condition proved easier due to the pointing condition overloading the visuospatial sketchpad.

Central Executive

  • The control center of the working memory system.
  • Coordinates how information is used by the phonological loop and visuospatial sketchpad.
  • Baddeley describes it as an attention controller.
  • Determines how attention is focused on a specific task.
  • Determines how attention is divided between two tasks.
  • Determines how attention is switched between tasks, thus it is part of executive attention.

Brain Damage and Frontal Lobe

  • Studies show the frontal lobe plays a key role in working memory.
  • Frontal lobe damage causes problems controlling attention.
  • Perseveration is a typical behavior seen in patients with frontal lobe damage.
  • Perseveration invloves repeatedly performing the same action or thought, even if it doesn't achieve the desired goal.
  • Individuals with frontal lobe damage may fail to respond correctly to changes in task directions.
  • This is due to an impaired central executive's failure to adequately control attention.

Baddeley's Episodic Buffer (2009)

  • A work-in-progress component added to the working memory model.
  • Helps increase capacity to hold information within working memory by working directly with long-term memory, acting as some kind of interchange.

WM, the Brain, and Prefrontal Cortex (PFC)

  • Research has been dominated by studies on the prefrontal cortex.
  • A significant case is that of Phineas Gage and his tamping rod accident on Sept 13, 1848.
  • It's unclear whether reports of Gage's personality prior to the accident were accurate.
  • After the accident, he appeared to demonstrate low impulse control, poor ability to plan, and poor social skills.
  • Gage's case linked frontal lobe areas to mental functions concerning personality and planning.

Goldman-Rakic's Delayed Response Task (1990 & 1992)

  • Experiments studied the effects of removing the prefrontal cortex in monkeys.
  • Monkeys were presented with two food wells, only one containing food.
  • The wells were covered, and a screen lowered to block the monkeys' view for a period.
  • When the screen was raised, the monkeys had to select the correct (covered) food well.
  • Monkeys with their PFC removed selected the correct food well only about 50% of the time.
  • This is equivalent to selecting the food randomly (by chance).
  • Monkey experiments provide evidence that the PFC is important for holding information for brief periods.

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