Cognitive Rehabilitation: Where We Are and What is on the Horizon




The field of cognitive rehabilitation has reached a point where financial resources are meager compared with the 1980s. Although there are benefits to more streamlined treatment, we now must be particularly efficient if we are to be helpful. We have the advantage of all that we have learned from our experiences in earlier decades, and we also now have a growing body of research to inform us of the degree to which some of those treatments are effective, but we are pressed to use our time with patients in the most efficient manner to provide adequate treatment. To rise to the challenge, it is critical that we be particularly thoughtful about our approaches to treatment.


Efforts to improve the cognitive functioning of individuals after brain injury have been documented since the mid-1800s, beginning with attempts to rehabilitate those who have aphasia . Those efforts intensified through the years with treatment fed by increased need, particularly after the return of wounded soldiers from various conflicts, and enabled by the growth of physical rehabilitation facilities. Facilities for treating brain-injured patients flourished in the 1980s, in part because of the proliferation of treatment sites, and also because of availability of funding. Throughout the 1980s, rehabilitation therapists often had the luxury of keeping their patients for virtually as long as they felt necessary. During that decade, post-acute programs grew in number as well, and many individuals who underwent lengthy acute inpatient stays were then transferred to post-acute inpatient or outpatient settings. Given the long stays in those facilities, many different techniques and methods could be attempted with the goal of restoring the individual to functioning that was as close to their pretrauma levels as possible. Therapists became increasingly experienced and knowledgeable in what brought about improvement following head trauma, and patients benefited accordingly. Such extensive treatment is unheard of today in this country, because over time, particularly in the 1990s, it became obvious that the costs in money and time were prohibitive. Today we have a situation that is almost the reverse, with lengths of stay typically counted in days or weeks rather than months, even for seriously injured patients.


Other aspects of treatment have changed as well. Initially, pioneer treaters such as Yehuda Ben-Yishay and Leonard Diller primarily addressed remediation of specific cognitive deficits, and these remediative efforts, whether performed on rehabilitation units, by therapists working alone, or in a milieu setting, were the standard modes of treatment throughout the 1980s. It was not until late in that decade that the concept of “functional goals” came into prominence. Because treatment to that time had been aimed almost exclusively at restoring the injured individual’s cognitive abilities to pretrauma levels, cognitive rehabilitation was a nearly interminable project. At that point, the obvious was acknowledged; the complete restitution was not possible. Focus turned at that time to teaching practical tasks that were relevant to the injured individual’s daily life outside the rehabilitation setting, and functional goals, such as how to maintain a checkbook, how to shop, and how to take public transportation, were highlighted as the end points of treatment. In some programs, this importance of functional goals so dominated treatment that rehabilitation of cognitive processes themselves were ignored completely. Many practitioners have come to appreciate the importance of each of those approaches, and have developed treatment programs that blend both treatment of cognitive processes and teaching of practical skills.


In the field of cognitive rehabilitation, we have reached a point where financial resources are meager in comparison with the resource-rich era of the 1980s. Although there are certainly benefits to treatment that has become more streamlined, we now must be particularly efficient if we are to be helpful. We have the advantage of all that we have learned from our experiences in earlier decades, and we also now have a growing body of research to inform us of the degree to which some of those treatments are effective, but we are pressed to use our time with patients in the most efficient manner to provide adequate treatment. To rise to the challenge, it is critical that we be particularly thoughtful about our approaches to treatment.


Elements necessary for effective cognitive therapy: a working team


Using a team approach is a long-accepted requirement for conducting appropriate treatment of those who have traumatic brain injuries, whether the treatment is administered on an inpatient or outpatient basis, whether the injury was recent or remote, and whether or not others have previously worked with the patient. As required by the Commission on Accreditation of Rehabilitation Facilities (CARF), those working with brain-injured individuals are expected to function as a unit—not simply work singularly in their respective specialty, but in conjunction with one another. Though this approach has long been the accepted standard of care, as a CARF surveyor for over 15 years, it is clear to the author that often this is not fully understood or put into practice. Obviously, treaters who do not meet or communicate with one another are not functioning as a unified team. Less obviously but far too frequently, team members communicate in person or in writing by reporting the goals and objectives of what they are doing with the patient. Unfortunately, this does not encourage teamwork, because “reporting” involves members telling their colleagues of their plans.


A true working-team approach requires several elements. First, team members must hold a common philosophy of treatment, an agreed-upon concept of what will bring about change in their patients (one such philosophy is described below). Because this is rarely, if ever, taught in the schools of the individual disciplines, insuring a common treatment philosophy is likely to involve extensive education of the various treaters, something that may seem unnecessary and too difficult and expensive to accomplish. Actual effective and efficient treatment, however, cannot be done without such an agreed-upon concept. In the long run, educating treatment team members is much less costly, and is virtually the only way of having a realistic expectation for success.


The team must evaluate patients and agree upon the identifiable problems, and an order of treatment must be then agreed upon, based on a logical system for determining which problems should be addressed first. Again, this should be theory-based, not simply a matter of each discipline selecting the order independently. Although each discipline member brings something unique to the treatment, the methods used to effect change can be consistent across disciplines, and they can be employed across therapies if the team is working in unison. Biweekly rounds, in which team members report to each other, are not an appropriate format for meaningful team communication. Because these issues are complex and different for each patient, any individualized treatment planning must be accomplished in meetings that allow for sufficient discussion.


Importantly, once goals are set and treatment methods determined, it is essential to write down the specifics of what treatment will be used to accomplish each goal. Writing down the specific methods for bringing about desired results requires team members to have clarity about what they are doing. The written plan that includes the methods that will be used to bring about change will also be a critical component needed for allowing nonprofessional team members (eg, family members) or future treaters to understand the work that was done with the patient.


On the surface, all this may seem too costly. In fact, haphazard, uncoordinated treatment that is not appropriately documented is what is truly wasteful of the patient’s time and effort, of financial resources, and of the trust placed in those who hold themselves out to be professionals working with brain-impaired individuals.




Elements necessary for effective cognitive therapy: philosophy of treatment


To provide brain-injured individuals treatment that is both effective and efficient, it is essential to consider the mechanisms of therapeutic change. This is required in order to develop a realistic basis from which to make treatment decisions. Although this may seem obvious once articulated, too often treatment is initiated without thoughtful inquiry into what brings about change. For example, the lack of an efficient philosophy can be seen those programs that use a “one-size-fits-all” approach in which every person in the program receives the same or similar set of exercises in each identified cognitive domain (eg, attention, visuospatial functioning, reasoning skills). Although such a course of treatment might be effective in the long term, it is neither time- nor cost-efficient, and in fact is impractical in most treatment situations in this era. At other times, a general problem area is identified, but methods used in delivery of the treatment do not sufficiently promote change. The treatment may focus on tools rather than the means by which those tools are used. The lack of a coherent philosophy of treatment based on brain-related functions often results in irrelevant treatment, when in fact, appropriate treatment might have been provided. Therefore, it is critical for clinicians working with brain-impaired individuals to operate from an agreed-upon philosophy of change and to use the methods that follow logically from that philosophy.


What follows is the author’s personal conception of a philosophy of treatment that addresses the mechanisms of change in brain-impaired individuals. It is based on my experience in working with brain-injured individuals, as well as research that has provided a great deal of information about how the brain functions, and the changes in functioning that correspond to damage to the brain through traumatic injury . It is offered as an example of a philosophy that can serve as a foundation for treatment.




Elements necessary for effective cognitive therapy: philosophy of treatment


To provide brain-injured individuals treatment that is both effective and efficient, it is essential to consider the mechanisms of therapeutic change. This is required in order to develop a realistic basis from which to make treatment decisions. Although this may seem obvious once articulated, too often treatment is initiated without thoughtful inquiry into what brings about change. For example, the lack of an efficient philosophy can be seen those programs that use a “one-size-fits-all” approach in which every person in the program receives the same or similar set of exercises in each identified cognitive domain (eg, attention, visuospatial functioning, reasoning skills). Although such a course of treatment might be effective in the long term, it is neither time- nor cost-efficient, and in fact is impractical in most treatment situations in this era. At other times, a general problem area is identified, but methods used in delivery of the treatment do not sufficiently promote change. The treatment may focus on tools rather than the means by which those tools are used. The lack of a coherent philosophy of treatment based on brain-related functions often results in irrelevant treatment, when in fact, appropriate treatment might have been provided. Therefore, it is critical for clinicians working with brain-impaired individuals to operate from an agreed-upon philosophy of change and to use the methods that follow logically from that philosophy.


What follows is the author’s personal conception of a philosophy of treatment that addresses the mechanisms of change in brain-impaired individuals. It is based on my experience in working with brain-injured individuals, as well as research that has provided a great deal of information about how the brain functions, and the changes in functioning that correspond to damage to the brain through traumatic injury . It is offered as an example of a philosophy that can serve as a foundation for treatment.




The central principal underlying change after brain injury


Following a brain injury, regardless of the specific impairments experienced by the individual, the most pervasive effect is the fact that cognitive functions that once were automatic no longer occur automatically. To remedy this problem to the capacity to perform those cognitive functions, the individual must now do on a conscious and intentional basis what once occurred without the need for conscious intent. This is the most fundamental, underlying principal underlying the effects of traumatic brain injury.


Patients typically have little understanding of their metacognition (awareness and understanding of one’s thinking and cognitive process) before their injury . Most people are quite unaware of the processes associated with thinking, much less how an alteration of these processes might affect their everyday life. After a head injury, most individuals either do not recognize their cognitive problems or have no understanding of what they might be.


Even if patients were experts in metacognition, they would still have difficulty recognizing their cognitive problems. This is primarily because our sense of self is tied to our knowledge of our personality and our intellect. This is not only true for those who pride themselves in being introspective or great thinkers, it is the case for those in every walk of life. Certainly none of us want to be less than what we believe we are. Consequently, problems with cognition are a primary narcissist injury to the individual, a fundamental change in one’s perception of one’s self. Think of how difficult it is for most of us to accept wrinkles or the need for reading glasses as we age. These changes are minor as compared with alterations in how well one is able to think or to present himself to the world. Reluctance to perceive such changes, even when the change is relatively mild, is one of the most common phenomena following head injury .


In addition, the cognitive deficits themselves may make it difficult for individuals to understand what has happened to them. Even when they may have a special understanding of metacognition and the fortitude to deal with the narcissistic injury, deficits such as those affecting problem solving, verbal reasoning, or the capacity to keep track of multiple stimuli may interfere with one’s ability to perceive changes in one’s self. Take the latter problem as an example. After a traumatic head injury, many individuals cannot keep track of more than one thing at a time. As a result, they often miss the feedback given by others (eg, non-verbal cues including tone of voice, facial expression) because they are focused on what others are saying and not the non-verbal cues. With these types of cognitive problems, the person’s capacity to view herself and to understand her acquired deficits may be impaired.


As a result of these factors, after experiencing a traumatic brain injury many have little sense that they have a problem in functioning, even when that problem is quite apparent to others, and in fact is interfering significantly in their lives. Others may have a vague realization that they have a cognitive problem, but have little understanding of the specifics of the problem. It is extremely difficult to resolve or compensate for a problem one does not know one has.


Unfortunately, lack of understanding also often becomes of the basis for, or even the source of, a frustrating adversarial relationship between the brain-injured individual and the professionals who are attempting to help him. Therapists, committed to helping their patients and aware that their time to do so is short, urge patients to accept problems they cannot understand. Patients respond in a variety of negative ways: they feel bored, angry, resistant, and confused about receiving treatments that seem irrelevant to their lives. Inpatients who have the most profound cognitive impairments and greatest confusion sometimes believe some sort of enemy is holding them captive. Others, even those who are only modestly injured, often mistakenly attribute hostile intentions to their therapists, the very people who are attempting to help them. We have all encountered patients who simply want to leave the inpatient treatment setting or who do not wish to return to outpatient treatment, who believe they are being treated as “head injury cases” rather than as individuals. This occurs when patients who sustained a brain injury have no understanding of what their problems are, why they go to the particular therapies they do, and how the activities in therapy have any real meaning in their lives. The distrust that builds when patients believe they are being made to do irrelevant activities to correct problems they believe are nonexistent frequently translates into a kind of resistance that becomes a barrier to progress in treatment. Further, even those patients who recognize they have some cognitive problem often have great difficulty understanding the specific nature of that problem . Those patients, despite the fact that they may be eager to improve and approach their therapy as active participants, cannot know when to make use of what they are given. As a consequence, treatment cannot be optimally effective.




Treatment


Therefore, it’s a matter of awareness…


We cannot expect our patients to benefit from treatment unless they can be active participants in the treatment. Because cognitive functions that once were automatic must be done after injury on a voluntary, intentional basis in order for the patient to purposely work on a problem, the patient must be aware of what the specific problem is . Too often, nonspecific problems (eg, labeling a problem as a “visuospatial deficit” when the specific problem actually is a deficit to visual scanning) or mislabeling problems (eg, using the term “short-term memory” to describe an impairment when the actual problem is a memory storage deficit) are used, and actually serve as impediments to assisting the patients to make progress in their rehabilitation. On the other hand, once the patient understands the specific problem, linking the therapies to that specific problem makes the therapy meaningful and able to be used by the patient, who then can become an active participant in the process. Without a patient’s understanding of her specific problems and the knowledge that the therapeutic activities are intended to address those specific problems, successful treatment will be a matter of chance and often will simply be ineffective.


The importance of a comprehensive evaluation and ongoing assessments


It should be apparent that to help a patient to understand his specific cognitive deficits, specific impairment (the patient’s deficits to his metacognition) must be recognized and understood by the treatment team member. Clearly then, treatment can only follow appropriate assessment. It is important that in addition to assessment by team members from various disciplines, the assessment also involve a evaluation by an experienced neuropsychologist who can conduct comprehensive testing, including the domains of attention, concentration, memory, speech and language functions, visuospatial abilities, and problem-solving involving verbal, visual, and tactile information. A comprehensive evaluation of this type is necessary to prevent seeing the patient too narrowly (referred to in lay terms as “looking at one part of the elephant”). This issue can be demonstrated by the very common error, seen by those working with children, in which the youngster is misdiagnosed as having autism when in fact he is globally impaired. It is also critical to have a comprehensive neuropsychological evaluation in order that the problem areas be considered in relation to the individual’s pretrauma functioning, so that the nature and extent of the impairments and remaining strengths are known. Low scores may represent the individual’s lifelong functioning, or may represent extreme changes from their pretrauma capacities. Without a comprehensive evaluation by a neuropsychologist, it is not possible to determine this, and appropriate treatment plans cannot be made.


Assessment is critical to the initiation of any treatment plan, but also is a requirement of any ongoing treatment. There is simply no way to gauge progress unless it is measured, no way to know when to modify a program, and no way to determine when treatment should end. For this reason, all treatment must be such that it produces results that are observable and measurable. Rehabilitation professionals tend to be particularly caring and interested in the welfare of their patients, wanting them to recover as much function as possible. They are known for their enthusiasm. As such, they are vulnerable to seeing meaningful change where change may in fact be slight, and continuing with treatments that are only minimally helpful. Patients, on the other hand, once aware they have a problem, may either be overly pessimistic about the possibility of ever experiencing meaningful improvement, or may be overly optimistic about the likelihood returning to pretrauma functioning at work, at home, or in their relationships. The only way for both therapist and patient to understand reality and to make appropriate decisions is to incorporate ongoing assessments, standardized whenever possible, into the treatment process.


Ongoing assessment also is critical in determining when it is appropriate to terminate with a patient. Terminating treatment is a difficult process, not only for the patient, but also for the therapist, who may recognize all too clearly that the patient has not improved as much as was hoped. Keeping a patient in treatment indefinitely is not a solution. This is not typically a problem where third-party payers are involved, because they often simply refuse to pay, forcing treatment to be discontinued. If the patient can continue with the payment himself privately, or if there is a third-party payer that may pay almost indefinitely (as is the case, for example, in occasional workman’s compensation cases or following a personal injury suit), it is unfair not only from a monetary standpoint but also to the well-being of the patient to continue with treatment that is essentially endless, or in which a treatment end point is undefined. Although to many therapists it may seem a benefit to “keep hope alive” by continuing with never-ending treatment, it actually is a disservice to the individual, because it serves as an impediment to the development of a reality-based adjustment. Coming to terms with the consequences of head trauma can be an horrifically harsh experience, but prolonging the process by encouraging unrealistic expectations only makes the adjustment more difficult. We cannot make our patients happier by continuing a process that encourages them to avoid reality. And we cannot wait until the patient chooses to end treatment—that may never happen. It is essential that we take the initiative in terminating treatment, and that we not collude with the patient’s denial system. One way to deal with this situation is to include the neuropsychologist in the termination process, so that the neuropsychologist can help the patient deal with his feelings about coming to the end of the treatment. The process is painful because there is more involved in termination than the end of the relationship with the therapist. In addition, termination frequently means the end of the expectation that there will be additional progress. Some of the worst fears of the patient often are being realized: the head injury truly was a tragedy, and its residual consequences likely are permanent. With the help of a neuropsychologist, the pain can serve as a catalyst by which the patient can reach this acceptance, and can consider and take advantage of the possibilities that are actually available.


Selecting problems to address


Thoughtful selection of which problems will be addressed also requires a team approach. Certainly, given the nature of brain functioning, certain problems should be addressed before others. For example, it would be inappropriate to work on retraining arithmetic skills if the patient were not yet fully aroused. Once the person is fully alert, he may be quite able to do arithmetic problems. Complex deficits may disappear as the underlying deficits are remediated. This may seem patently obvious, but errors such as this are common. They occur most often when the overall functioning of patients is not considered (where each therapist works on the areas of functioning he feels fall within his discipline), and when adequate communication between therapists is not maintained. The author has sat in conference and listened to one therapist report that a patient was unable to add or subtract, whereas the next reported using a point-system to address the same patient’s behavioral problems. Clearly, the point system was not going to work. Though both therapist “reported,” neither listened. The order of treatment, therefore, needs to be determined through consideration of all of the patient’s abilities and deficits, because different cognitive deficits have different anatomic and functional neural substrates that might vary greatly depending on the demands of the task . Only a handful of problems should be addressed at any given time, so that the capacities of the patient are not overwhelmed. A variety of tools (eg, puzzles, worksheets or workbooks, computer programs) can be used, but all should address the same problems identified by the team. Often the team will include a problem that is selected because it is particularly disabling (eg, standing too close to others), but in general, the order of treatment will be drawn from knowledge of how the brain functions.


Remediating and compensating: altering the person versus altering the world


Within the system being described, there are three ways in which therapy can be approached. Patients can be taught remediations, compensations, or strategies for specific situations.


Selection of problem to be rehabilitated must include recognition of which problems actually can be remediated and which can only be compensated for. Some cognitive problems can actually be remediated. The goal in remediation is improvement to the underlying metacognitive problem itself. For example, visual scanning can be remediated directly through exercises, whereas restoration of secondary sensory processes cannot. Thus, some problems can only be compensated for. Cicerone and his colleagues report, for example, that some compensations, such as the use of various self-management strategies and a diary, can be beneficial in some individuals, even many years post-injury. It is important to avoid attempting to remediate deficits that can only be compensated for, so that time and money are not wasted. It also is a mistake to help a patient compensate for a problem that can be remediated. Erring in this direction results in less functionality. Experience and a knowledge of the literature on evidenced-based cognitive rehabilitation, such as that cited below, are required to know the difference, and a skilled team takes the literature and experience of clinicians into account when designing their treatment programs.


Whether remediative or compensatory strategies are used, the goal is that the improvement generalize to instances in the individual’s life outside the treatment setting. There are occasions when this is not a possible goal. For example, in more severely injured individuals, treatment sometimes is geared not to remediation or to compensation, but rather to altering the world around the patient. This is virtually always a less satisfactory approach, but one that is sometimes required when the patient is so impaired that he is unable to improve with remediation or compensation strategies. For example, placing signs on walls to help direct a patient may be useful to the individual, but is not a strategy that can generalize outside that particular setting. Such alterations of the outside world are avoided when possible because they cause the individual to appear more impaired to observers.


Other strategies that do not involve actual remediations or compensations are those that teach to very specific situations. For example, teaching someone how to use a particular train to get from his home to his work site may be useful, but it does not leave the patient with a means for dealing with traveling to some other destination. Again, this may be helpful, but is not a method that allows for generalization, and consequently is less effective than teaching remediative compensatory strategies, though it may be necessary for patients who have more severe injuries and who are incapable of learning techniques that would be generalizable. Treaters should train to specific situations thoughtfully, with the understanding that that is what they are doing and the knowledge that it may be less satisfactory in the long term.


Linking the problem to the solution


In order to maximize the opportunity for treatment to generalize from one situation to another, it is essential that the metacognitive deficits be specifically identified by the therapist and the patient, as noted above. It then is critical that the specific problem be linked for the patient with a specific solution. This link between the identified problem and the solution to the problem is what constitutes the treatment. Again, treatment is not the tool being used or the functional goal being sought. Treatment is the combining of the problem with its solution. For example, it is not sufficient to provide the patient with exercises that increase mental speed without helping the patient to understand why he is doing the exercises. This linking often can be accomplished through repeated explanations (eg, “Because you have difficulty doing things quickly enough, you are going to sort these colored blocks as fast as you can, and we will keep track of the time.”). This combination of identified problem with its solution can be written in the patient’s notebook (eg, “Because you have difficulty doing things quickly enough, we practiced having you sort colored blocks as fast as you could, and we kept track of the time.”). This same treatment can be used across therapies to work on specific functional goals in each therapy. These are the treatments that must be agreed upon by the therapists jointly. The likelihood that treatment will generalize from the therapeutic setting to the outside worlds increases from the repetition of the same treatment across disciplines and with different functional goals, and it is the underpinning of what brings about meaningful change following traumatic brain injury.

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Apr 19, 2017 | Posted by in PHYSICAL MEDICINE & REHABILITATION | Comments Off on Cognitive Rehabilitation: Where We Are and What is on the Horizon

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