So.... I am listening to talk radio today,
listening to the moderator
-Neil, July 2007
|
Wisdom and Amygdala Clicking
By Marie-Louise Oosthuysen de
Gutierrez
The old are not always
wise, just as the young may not always lack wisdom, but the fact remains that
the manifestation of wisdom in people remains elusively few and far between.
Wisdom does seem to increase as we age, peaking around middle to old age
(around the 60’s). When cognitive decline sets in due to old age (around 75
years of age), wisdom also declines. Can
clicking the amygdala forward lead us up the path of wisdom, the greatest
achievement of human potential? To
answer that question we should first look at what wisdom is.
What is Wisdom?
A few brave individuals
have tried to define wisdom, but alas, a single definition appears elusive. Researchers agree that wisdom is a balancing
act between three factors: (a) knowledge
which is dissected by analyzing, reflecting, judging and seeing another’s point
of view; (b) emotional intelligence which includes compassion, empathy, generosity,
resilience, and the ability to retain a positive attitude even in the face of
adversity; and (c) the ability to learn from one’s own mistakes and negative
experiences while remaining positive.
This emotional regulatory valve is representative of a social, intra-,
and interpersonal form of knowledge about the human psyche that is filtered
through the executive centers of the brain, the prefrontal cortex. “The Berlin Wisdom Paradigm” defined wisdom as
good judgment, empathetic understanding, psychological insight, emotional
regulation, and discerning and shrewd advice.
Researchers have found
that those in the third age manage their emotions better than do the younger
generations. The older the person, the
more likely that he/she is experiencing mixed emotions as opposed to feeling
either positive or negative, as is usually the case in younger people. This state of “mixed emotions” allows the
individual to regulate his/her emotional states better than when the emotional
state is singular (positive or negative).
Therefore, older people are emotionally speaking more even-keeled, which
also results in better emotional resilience. Wise individuals learn from
negative experiences without dwelling on them, acting on situations they can
control, and accepting their limits in situations they cannot control. Being able to cope successfully with hardship
and crises throughout life not only makes man wise, it is also considered one
of the pathways to wisdom.
The Link between the Amygdala, Prefrontal Cortex and Wisdom
Wise people appear to activate
their prefrontal cortex in emotional situations. The prefrontal cortex exerts
executive control over many brain functions by regulating and reducing activity
in the amygdala. Increased activity in
the amygdala was found in people with poor emotional regulation. Increased
levels of the stress hormone cortisol are also linked
to higher amygdala activity.
A neuroscientist at the
University of Wisconsin, Richard J. Davidson, investigated patterns of brain
activity associated with emotional regulation in a small group of older
individuals (average age 64 years) who participated in the Wisconsin
Longitudinal Study. He concluded that
individuals who regulate negative emotion well by voluntarily using cognitive
strategies (activating the prefrontal cortex) to assess or reappraise a
stimulus, also showed reduced activation
of the amygdala, resulting in a distinctly
different brain activity pattern from their emotionally unintelligent
counterparts. Individuals who train
themselves to regulate and modulate their emotions cognitively bounce back from
adversity by registering the negative and then moving on emotionally speaking –
no negative dwelling. Those who
regulated their emotions well activated the prefrontal cortex (executive
control center) and at the same time reduced activity in the amygdala. Davidson concluded that the ability to
activate the prefrontal cortex and reduce activity in the amygdala led to
better stress management (by reducing the amount of cortisol
that gets released) and the ability to bounce back from adversity (by not
dwelling on the negative). This optimal
regulation of emotion is therefore physiologically speaking, visible in the brain.
In other words, if you
are able to click your amygdala forward and to activate the prefrontal cortex at
will, you are in essence putting the amygdala on “standby mode” by transferring the processing of the stimulus to the
prefrontal cortex. Also note that individuals who suffer from PTSD (Post
Traumatic Stress Disorder) have enlarged amygdalae
due to the overstimulation of these brain structures. The individual with PTSD is
not able to transfer the processing of the constant/multiple stressful
situations to the prefrontal cortex, thus clinging to the negative stimulus, resulting
in elevated cortisol levels which in turn keep
stimulating the amygdala even although the outside stimulus is no longer
present, resulting in a vicious cycle of amygdala overstimulation.
In a different study conducted
by Laura Carstensen (
The Meditation Link
Mindful meditation has
also been touted as a pathway to wisdom.
In his book “Working with Emotional Intelligence”, Daniel Goleman says that mindful mediation works because the left
prefrontal cortex (the brain structure that “suppresses amygdala hijacks and
generates positive feelings”) becomes “significantly more active“. He also says that the sense of alertness and
greater relaxation stems from “an
underlying change in the brain” which “duplicates that found in those
individuals who are most resilient and adaptable under stress”
.... another outward sign of the amygdala-prefrontal cortical activation path
followed. Various studies on mediation
have concluded that its practice increases activity in the left prefrontal cortex and these changes are stable over time – the
effect lingers, even if the individual stops meditating for a while. The left prefrontal cortex is responsible for
our abilities to plan, to concentrate, meta-cognition (thinking about
thinking), and positive affect (good feelings).
Similar studies have found a link between anxiety and depression with
decreased activity in the left prefrontal cortex and increased activity in the
right prefrontal cortex. Note that
according to the theory of vectorial hemisphericity,
when activity in one amygdala increases, the opposite amygdala’s
activity decreases.
The Amygdala – Prefrontal Cortical Pathway as Illustrated by
Drugs
The link between the
amygdala and the prefrontal cortex can be seen quite easily under the influence
of various drugs. Alcohol depresses the brain
in general, but the sophisticated prefrontal cortex is affected before less
complex areas. Before slurred speech and walking unsteadily are outward signs
of alcohol intoxication, the individual displays lowered inhibitions, decreased
attention span, and an increased influence of emotions over behaviour. The ADD/ADHD drug Ritalin, has the opposite
effect, because it stimulates activity in the prefrontal cortex.
CONCLUSION: The Amygdalae, Prefrontal
Cortex, EI, and Wisdom
The evolutionary older amygdalae function first and foremost to ensure our survival,
but their quick judgments and decisions are prone to error especially in modern
society. If the prefrontal cortex can be
alerted the moment the amygdala sense a red-flag situation, it will be able to
act as a skilled negotiator who can intervene before fight or flight, fear or
anger, conflict, anxiety, and stress responses are triggered. All scientists
that have studied this link agree that this response/activation path does exist
and that the brain can be trained to follow it.
And probably the easiest training method is learning how to click your
amygdala forward in order to transfer the processing of stimuli to the
prefrontal cortex via the response/activation path.
According to Goleman emotional intelligence can be increased, with
“small but steady and significant increases as people go from age group to age
group, with a peak occurring in the forties”.
I would venture to conclude that those emotionally intelligent
40-somethings who keep clicking their amygdala forward, stimulating the
amygdala-prefrontal cortex pathway, go on to reach the ultimate of human
potential in their third age: wisdom!
POST SCRIPT: For those interested in reading a bit more about the
neural pathways that link the brain structures referred to in the text above, I
made a short summary:
The bidirectional Amygdala-Prefrontal-Orbitofrontal
Cortical Pathways
Bidirectional neural
circuits, formed by projections to and from the amygdala and the prefrontal
cortex, are implicated in certain cognitive and emotional processes.
·
The neurotransmitter, dopamine, was found to regulate the
balance of excitatory and inhibitory influence between the basolateral
amygdala and the medial prefrontal cortex.
Normal function in the prefrontal cortex is critically dependent on the
balance of transmission by dopaminergic and
adrenergic fibers.
·
An interconnected cortical pathway that may mediate certain
types of decision-making processes exists between the basolateral
amygdala and the anterior cingulate cortical region
of the prefrontal cortex. The serial
information transfer between the basolateral amygdala
and the anterior cingulate cortex is implicated in
cause and effect (selecting an appropriate response to an expected outcome
relative to the cost of certain actions).
·
The medial prefrontal and orbitofrontal
cortices have densely distributed projection neurons to the hypothalamus and
amygdala. Both cortices also have
hypothalamic axonal terminations in the intermediolateral
column of the spinal cord (to innervate peripheral autonomic organs), and
several brainstem structures. These descending pathways from the medial
prefrontal and orbitofrontal cortices through the amygdala, are the highways that transmit quick influences
from the prefrontal cortex to the autonomic system, resulting in the
appreciation and expression of emotions, by quieting
the activity of the central nucleus of the amygdala.
·
Although the two cortices are connected (and also to lateral
prefrontal cortices), the medial prefrontal cortex differs from the orbitofrontal cortex in various ways:
o
Widespread and well distributed network of nerve fibers to several nuclei of the amygdala, which in turn
project to the hypothalamus
o
Stronger neuronal projections to the hypothalamic autonomic
centers
o
Comparatively sparse connections with sensory areas
o
The medial prefrontal cortex has dual access to the
emotional motor system – directly via the pathway to the hypothalamic and
brainstem autonomic centers, and indirectly through the amygdala.
·
The amygdala is activated even when we are not consciously
aware of a possible dangerous situation, through thalamic pathways that bypass
the cortex. Repetitive activation of the bidirectional pathways that link the
amygdala to the prefrontal and orbitofrontal cortices
is necessary to ensure the conscious appreciation of the emotionally
significance of events. Working
together, the orbitofrontal and all prefrontal
cortices can evaluate emotional events and rapidly influence the lowest levels
of the autonomic nervous system to mediate emotional expression.
GLOSSARY
Adrenergic Fibers – Adrenergic fibers
are also known as the postganglionic sympathetic nerve fibers. The primary neurotransmitter of
postganglionic sympathetic nerve fibers is norepinephrine (or noradrenaline). These fibers
transmit impulses to other nerve cells, smooth muscle, or gland cells via norepinephrine.
Amygdala - Buried deep within the
medial frontal temporal lobes of both hemispheres, we find the amazing amygdalae (or amygdalas) – an
almond shaped neurostructure, one in each hemisphere,
which is part of the limbic system. The
amygdala is a small mass of gray matter,
which originated in early fishes and evolved to mediate the evolutionary
ancient chemical nervous system represented today by our bloodstream. In modern man it is central in processing
strong emotions (both positive and negative).
Working through the hypothalamus, the amygdala releases excitatory
hormones into circulating blood whenever it senses a red-flag situation. The
amygdala plays a key role in regulating emotions like anger, fear, love, and
sadness. Involved in
signalling the cortex of motivationally significant stimuli like those related
to reward and fear. There is one
amygdala located in each hemisphere (plural amygdalae). The amygdalae are
mature at birth and are very well connected to the rest of the brain. The cortex is greatly influenced by the
amygdala as it receives a lot more input from the amygdala than vice versa,
although the information flows both ways.
The reason for this could be because the amydalae
are considered reactive, while the frontal lobes are reflective. Also see “Vectorial
Hemisphericity”.
Basolateral Amygdala – The amygdaloid complex consists
of three collections of nuclei, the largest (and best differentiated) of these
nuclei is the basolateral nuclear group which
consists of the lateral nucleus, the multifaceted basal nucleus, and the
accessory basal nucleus. The basolateral amygdala together with the orbitofrontal cortex are critical for the
application of learned representations of outcomes in order to guide
behaviour. This is achieved when the basolateral amygdala acquires associations between cues and
outcomes, and the orbitofrontal cortex applies that
knowledge to guide behaviour.
Amygdala hijack/kidnapping - When strong emotions take over one’s actions, forcing action without thinking, resulting in an inappropriate response, the amygdala has hijacked/kidnapped the brain. The opposite of an amygdala hijack is emotional intelligence.
Amygdala clicking - Amygdala clicking was developed by Dr.
T.D. Lingo at the Dormant Brain Research and Development Laboratory from 1957
to 1987. It is a simple visualization
technique where one visualizes the location of the amygdalae
(temporal lobe, halfway between the outside corner of the eye and the top of
the ear, about 1 inch into the brain, behind the eye), and then visualizing
tickling the front (anterior) area of the amygdalae
with a feather (one at a time or both together using two imaginary
feathers). The biofeedback parameters
are primarily positive emotional feelings and a tingling sensation (like
electrical currents) running down the forehead. Increased intelligence and
creativity have been reported as a result of clicking the amygdalae
forward. Dr. Lingo’s star pupil, Neil
Slade, has continued his work and you can read more about amygdala clicking at www.neilslade.com
Anterior Cingulate Cortex (ACC) – The Anterior Cingulate Cortex is the frontal part of the Cingulate cortex (a “collar”-like structure around the
Corpus Callosum).
The ACC consists of both the ventral and dorsal areas of the Cingulate Cortex and is involved in many autonomic
functions (blood pressure, heart rate) and also rational cognitive functions
(decision making, emotion, reward anticipation, empathy). According to the research, the dorsal ACC is
primarily involved in rational cognition while the ventral ACC relates to emotional
cognition.
Autonomic Nervous System (ANS) – The ANS is also known as the
Visceral Nervous System and is that part of the nervous system that controls
homeostasis. It controls involuntary functions such as cardiovascular,
respiratory, and digestive functions; perspiration; pupil dilation; salivation;
the discharge of urine (micturition); and erection.
The sensory and motor neurons that supply nerves to the viscera form reflex
arcs that pass through the lower brainstem or medulla oblongata which explains
why a vegetative life is possible when the CNS (Central Nervous System) is
damaged.
Cortisol - Cortisol
is a corticosteroid hormone which is produced by the adrenal gland and is
involved in the body’s response to stress. Its function is to increase blood
pressure and blood sugar levels, resulting in an immunosuppressive action. The
synthetic form of cortisol is “hydrocortisone” which
is used to treat allergies and inflammation, as well as cortisol
deficiencies.
Dopaminergic Fibers – The dopaminergic system is a chemical messenger system which
consists of a collection of neurons that use the neurotransmitter dopamine.
Emotional Intelligence - Emotional Intelligence, also
called EI refers to the individual’s ability to perceive, assess, and manage
one’s own emotions as well as the emotions of others and of groups. EI consists of five characteristics and
abilities: Self-awareness; Mood management; Self-motivation; Empathy; and
Relationship management.
Hypothalamus – The hypothalamus is located below the thalamus and
just above the brain stem. This gland is
roughly the size of an almond and occupies a major portion of the ventral
region of the diencephalon. The hypothalamus links the nervous system to the
endocrine system via die pituitary gland (or hypophysis). It regulates certain metabolic processes;
autonomic activites; synthesizes and secretes neurohormones; and controls body temperature, circadian
cycles, thirst, and hunger. The
hypothalamus is very well connected to the CNS (Central Nervous System), which
include the brainstem reticular formation and autonomic zones, and the limbic
forebrain (in particular the amygdala, septum, diagonal band of Broca, olfactory bulbs, and the higher cerebral cortex).
Intermediolateral Column of the Spinal Cord – The intermediolateral
cell column of the spinal cord is found at vertebral levels C8 – L3 (according
to Wikipedia it exists at vertebral levels T1 – L2). It mediates the entire
sympathetic innervation of the body.
Mindful Meditation - Mindfulness means to bring the
mind to focus on what is happening in the present moment, taking note of the
mind’s running commentary, and then releasing any perceived judgments. Any activity done mindfully is considered a
form of meditation, making mindful meditation possible
at any time.
Orbitofrontal
Cortex – The orbitofrontal cortex is part of the prefrontal lobes and
located above the orbits of the eyes. It
receives projections from the manocellular, medial
nucleus of the mediodorsal thalamus. It is involved in cognitive processes, such
as decision making and plays a big role in reward and punishment functions, and
therefore also in emotion. The orbitofrontal cortex allows us to defer immediate
gratification in order to obtain longterm benefits. It varies considerably from individual to
individual, as well as non-human primates.
Prefrontal Cortex - The prefrontal cortex is the anterior part of the frontal lobes of
the brain. It is located in front of the
motor and premotor cortices. It is divided into the orbitofrontal,
medial, and lateral prefrontal areas. The prefrontal cortex is the executive
center of the brain and its functions include abilities to differentiate between
conflicting thoughts, determine good and bad, better and best, same and
different, defining goals, consequences of actions, predicting outcomes,
expectations as defined by actions, impulse control, and is an integral link in
how the individual’s personality is expressed.
The prefrontal cortex is highly interconnected with the brainstem’s
Reticular Activating System (RAS – the center for arousal and motivation in
animals) and the limbic system (involved in emotion, motivation, and the
emotional association with memory) and acts as the guardian of anger, rage,
aggression (fight/flight/freeze responses), panic, pain, pleasure control, and sexual
responses. When the connection between
the prefrontal cortex and the limbic system is severed surgically
(“psychosurgery” or a “prefrontal lobotomy”), patients become passive and
completely lack motivation.
The
The Wisconsin Longitudinal Study (WLS) - The WLS is a long-term
study based on a random sample of 10,317 men and women who graduated from
Vectorial
Hemisphericity – According to the theory of vectorial
hemisphericity, as activity in one amygdala increases, the opposite amygdala’s activity decreases.
BIBLIOGRAPHY
Books:
“Working with Emotional Intelligence” by Daniel Goleman
Websites and Articles:
“The Older-and-Wiser Hypothesis” By STEPHEN S. HALL
Published:
http://www.nytimes.com/2007/05/06/magazine/06Wisdom-t.html?pagewanted=1&_r=1&th&emc=th
“Brain Activity During Meditation”
http://www.crystalinks.com/medbrain.html
“Yoga
May Help Treat Depression, Anxiety Disorders” by E.J. Mundell
http://news.yahoo.com/s/hsn/20070608/hl_hsn/yogamayhelptreatdepressionanxietydisorders
“Dopaminergic Regulation of
Inhibitory and Excitatory Transmission in the Basolateral
Amygdala–Prefrontal
Cortical Pathway” by Stan B. Floresco and Maric T. Tse
Department of Psychology and Brain Research Center, University of
British Columbia, Vancouver, British Columbia, Canada V6T 1Z4
http://www.jneurosci.org/cgi/content/abstract/27/8/2045
1 Department of Psychology and Brain Research Center,
University of British Columbia, 2136 West Mall, Vancouver, British Columbia,
V6T 1Z4, Canada
http://cercor.oxfordjournals.org/cgi/content/short/bhj143v1
“Serial pathways
from primate prefrontal cortex to autonomic areas may influence emotional
expression” by
1Department of Health Sciences, Boston University, Boston, MA 02215,
USA
2Department of Anatomy and Neurobiology, Boston University School of
Medicine, Boston, MA, USA
3NEPRC, Harvard Medical School, Southborough, MA, USA
http://www.biomedcentral.com/1471-2202/4/25
Wikipedia: The Free Encyclopedia
Marie-Louise Oosthuysen de Gutierrez
is an Education Brain Researcher and Graphologist with a passionate interest in
the brain and how it makes us what we are. She is an international brat who has
lived and worked in